GB2385085A

GB2385085A - Telescopic locating component for doorframe

Info

Publication number: GB2385085A
Application number: GB0224895A
Authority: GB
Inventors: Ian Douglas Law
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-11
Filing date: 2002-10-25
Publication date: 2003-08-13
Anticipated expiration: 2022-10-25
Also published as: GB0221814D0; GB0224895D0; GB2385103B; GB2385103A; GB2385083A; EP1818494A3; GB2385069A; GB0203179D0; GB2385085B; GB0221816D0; EP1818494A2

Abstract

A locating component 22, 24 comprises telescopic adjustment means, in order to fit the depth of an opening within a wall 32 to form a locating reference for architectural finishing components which may include doorframes, architraves 26 or doors 18. A wall bracket (58, Fig 3) is also described, which comprises a wall securing portion and a press fit portion for attaching an architectural finishing component. Also included is a doorframe component, which comprises two telescopically adjustable portions and a doorstop to bridge any gap in between, where the telescopic adjustment may be made using trapezoidal section slide bars (28, Fig 2B). A kit of parts for attaching architectural components to an opening in a wall is also described, where telescopic locating components form an invisible part of the finished installation of the architectural component.

Description

1 2385085

Installing Architectural Finishing Components in a Building The present invention relates to methods of installing architectural finishing components in a building, in particular components such as doors, trims and architrave. The present invention also provides a bracket for an architectural finishing component for use in such a 5 method of building, a door frame assembly and a kit of components all of which can be used in such a method.

This invention is related to the disclosures of, and may be used in conjunction with the

architectural finishing components disclosed in, GB0203179.7, the entire contents of which are incorporated herein by way of reference.

10 There is a constant drive in house building to reduce costs. A large part of the cost of building a house is labour. Further, the more skilled the labourer, the more expensive his or her time on site will be. Therefore, any way of reducing the time that is spent onsite by skilled labourers or craftsmen is of interest to a site or project manager.

Systemising house construction so that standard building components, i.e. components of a 15 standardised size (for example length, width, height and/or thickness), can be factory built, delivered to the site and quickly installed by labourers with relatively low skills, can make big savings to the overall cost of building, modifying, converting or decorating a house or building. Traditional methods of building, however, do not lend themselves to using such systems because tolerances cannot be kept close enough for the doors, etc., to be fitted as 20 received. Therefore, even doors and architrave etc. of a standard size need to be adjusted or cut in order to be fitted in a building using traditional building methods.

Traditional building methods involve three essential steps. The first two are performed by relatively unskilled labourers. The first step is the construction of a structural skeleton for the building, formed of various structural elements such as walls, floors and ceilings.

25 These structural elements are constructed of general-purpose building materials such as bricks or concrete blocks in the case of walls or concrete that is cast in situ in the case of floors. These building materials are general-purpose in the sense that they are not designed for the construction of buildings of set dimensions; they can be and are used to construct buildings to any design. The second step is the application of general-purpose finishing 30 materials to the structural elements, for example to finish off the walls, the floors or the

ceilings. Such general-purpose building or finishing materials include plaster (for the walls and ceilings) and flooring materials such as floor screed, floorboards or tiles, although these latter could also be regarded as structural building materials, since they are designed to be load-bearing in use. Finally, there is the third step: onto these "finished" 5 walls, floors or ceilings, standard building components are installed to give the room a "designed" look. This currently has to be done by skilled craftsmen such as joiners or carpenters. These standard building components include architectural finishing components such as architectural mouldings. Architectural finishing components are those items of a building 10 that are position-critical, i.e. need to be installed in a building in exactly the correct position, or to within very small tolerances, in order to achieve their function or to look right. Such items include, but are not limited to, doors, trims, skirting boards, archikave, and cornices. Masonry items, such as stone fireplaces, can also be architectural finishing components for use with the present invention.

15 A typical example of an architectural finishing component is a door and its surround. A door must be upright and positioned correctly within a door frame, otherwise it will not open and close properly. Unfortunately, however, as suggested above, it is often the case that such architectural finishing components need to be cut or resized in order to fit correctly to the walls, floors or ceilings when constructed using traditional building 20 methods. Therefore, specialised building techniques involving skilled craftsmen such as joiners or carpenters will be required.

It would therefore be desirable to provide a means for assisting in the correct installation of standard building components, such as prefabricated architectural finishing components, so that they can be fitted as received on site by unskilled labourers where the principal 25 methods of the construction employed are traditional.

According to the first aspect of the present invention, there is provided a method of installing at least one architectural finishing component in a building comprising: a) installing a first locating component having a telescopically adjustable depth in an opening of a wall to form a locating reference for an architectural finishing component, the first 30 locating component having had its depth adjusted to match substantially the thickness of the wall.

/ The method preferably comprises the step of: b) installing to the first locating component a second locating component. Preferably, the first or the second locating component is adapted to receive the at least one architectural finishing component. Preferably the method finally comprises the step of c) attaching the at least one architectural finishing 5 component to the said first or second locating component.

Preferably, both the first and the second locating components are adapted to receive at least one architectural finishing component. These may all be fitted in a final step.

The method may comprise: i) installing the first locating component, and then ii) attaching the second locating component to the first locating component.

10 Alternatively, the method may comprise: i) installing the second locating component onto the first locating component and then ii) installing the first locating component to the wall.

Such methods of building allow architectural finishing components to be fitted for example in or on a wall without adjustment of the architectural finishing components, the building or finishing materials, for example when redecorating scenario.

15 The architectural finishing components will usually be joinery building components, i.e. made of wood, or of masonry building components, i.e. made of ceramic, plaster and the like. Preferably the first locating component defines at least part of a door frame. Preferably the door frame has a standard upright height and a standard lintel width. The depth of all three 20 elements is preferably adjustable. Such a door frame can then be adjusted for depth to match the thickness of the wall to fit neatly within an existing wall opening, for example one from which an undesired door frame has been removed.

The architectural finishing component may be an architrave or a door or both. The method may then comprise installing the standard size but adjustable depth door frame in the wall 25 opening, hanging a standard door having a height and width suitable for fitting in the door frame to one of the upright sections of the standard door frame and possibly then fitting architrave around the door frame.

Preferably, the at least one architectural finishing component is attached to the first or second locating component using a press-fit connection, e.g. using double-ended pins such

as those defined in GB0203179.7, referenced above. See also GB0221816.2 for further double ended pin designs, the entire contents of which are also incorporated herein by way of reference. Although the press-fit connection is preferably achieved using separate components such as double-ended pins that are installed into holes or slots in the building 5 components, other forms of press-fit engagement may be used.

According to a second aspect of the present invention there is provided a bracket for an architectural finishing component, the architectural finishing component having a part of a press-fit connection thereon, the bracket comprising a first portion suitable for securing the bracket to a wall and a second portion that in use extends parallel to the wall, the second 10 portion having another part of the press-fit connection thereon.

Preferably the first portion has an engagement means for engaging the bracket with a receiving means of a locating component for the architectural finishing component.

Preferably the press-fit connection is a double-ended pin connection, the locating component having a slot therein for receiving a first end of the double-ended pin, the 15 second end extending, in use, into the architectural finishing component. Preferably, in use, the slot extends vertically.

Preferably, the bracket comprises a first arm and a second arm extending perpendicular to the first arm, the slot being provided in the first arm. Preferably the second arm has a trapezium shaped section along its length. Preferably, the second portion is adapted to be 20 driven into a wall. The wall may have receiving means for the second arm, such as trapezium sectioned vent. Preferably, however, the receiving means is in a locating component fitted onto or into the wall.

Preferably the bracket is L shaped.

Preferably the component is made of metal. However, it may also be made of a stiff 25 plastic material.

According to a third aspect of the present invention there is provided a door frame component comprising a first frame portion and a second frame portion that are telescopically adjustable relative to each other and a doorstop portion, the doorstop portion

being fixable, in use, to first, substantially co-planar faces of the two door frame portions to bridge any gap therebetween.

The second, opposed faces of the door frame portions preferably each have means for receiving a telescoping means between the two door frame portions so that the depth of the 5 door frame component can be adjusted telescopically. Preferably, the means comprises a partially closed groove. Preferably, the groove generally has a trapezium shaped section suitable for receiving a trapezium shaped section of a bracket in accordance with the preferred embodiment of the second aspect of the present invention with a friction fit.

Preferably, the telescoping means comprises a slide bar. The slide bar may have a 10 generally trapezium shaped section for fitting in the generally trapezium shaped groove in a sliding fit.

Securing means are provided on the slide bar for securing the slide bar within the means for receiving the telescoping means. Preferably, the means for securing comprises a screw adjustment for changing the profile, e.g. sectional shape, of the slide bar such that it can be 15 blocked from sliding in the groove. This may be achieved by having a taper adjustment, for example comprising a screw for adjusting the width of a slot in a side of the trapezium shaped slide bar. The screw may double as a fixation pin for locking the component against a wall upon adhering the component to a wall with a foam adhesive.

According to a fourth aspect of the present invention, there is provided a door frame 20 assembly comprising two telescopically adjustable door frame portions and a doorstop portion, each door frame portion comprising two uprights and a lintel attached therebetween, the doorstop portion being adapted to bridge any gap between the door frame portions. The lintel may also be telescopically adjustable and may have a doorstop portion. 25 The depth of the doorframe assembly is telescopically adjustable.

Using the door frame assembly of the present invention, when refurbishing a part of a building where an existing door was located, the old door and frame, if not all removed, can be removed to leave an opening in the wall. Into this opening the door frame assembly of the present invention can be positioned and its depth adjusted to match the thickness of 30 the wall by adjusting the door frame portions telescopically. Then, for example using an

( 6 adhesive polyurethane foam or perhaps mortar, any gaps between the door frame assembly and the wall surrounding the opening can be backfilled to provide a generally-finished door vent of a standardised size for receiving a standard size of door.

The door frame assembly may also comprise a foot plate to ensure that the base dimension 5 is correct as well.

Architraves may be used to cover the ends of the door frame portions to hide the adhesive foam or mortar between the components of the door frame assembly and the wall.

According to a fifth aspect of the present invention there is provided a kit of building components for forming an architecturally finished building component comprising: 1) a 10 first locating component for attaching to a wall, 2) a second locating component attachable to the first location component, the two locating components together being adapted to receive at least one architectural finishing component for attachment of the at least one architectural finishing component to the wall, wherein once all the necessary architectural finishing components have been attached to the first or second locating component, the 15 first locating component and the at least one architectural finishing component form at least partially visible parts of the architecturally finished building component and the second locating component forms an invisible part of the architecturally finished building component. The architecturally finished building component is preferably a doorway with architrave 20 and a door.

Preferably, the architectural finishing component is at least one joinery item such as a door or an architrave. Preferably, the first locating component is made at least partially of a finished wood, medium density f breboard (MDF), glass reinforced plastic or a ceramic material, e.g. a plaster based material or a mortar based material, or another commonly 25 used building material so that the appearance of the component is conventional in the finished building. The remaining parts, for example a telescoping member, may be made of metal, for example.

Preferably the first locating component has a surface finish on its finally visible parts, thereby requiring no further decoration upon completing the installation.

( 7 The present invention enables the quick fitment and refitment of standard building components, such as standardised doors, i.e. doors of a standard height and width, or standardised architrave, i.e. architrave of a standard length and width.

The components of the present invention can be fitted using or in conjunction with 5 traditional construction methods, e.g. using nails, mortar and adhesive. However, preferably the first locating component is fixed to the wall using a foam adhesive since this fills any gaps between the first locating component and the wall and gives a strong result.

Use of the present invention allows the architectural finishing components to be prepared off site. They can therefore match one another. With doors, for example, or windows, they 10 can also be supplied as a set, complete with matching handles, locks and hinges. They can also be installed or fitted right at the end of the redecorating or building process. This will not only save construction time by skilled labourers and reduce the risk of damage to the architectural finishing components but will also allow, for example, painters to spray finish walls and ceilings since the architectural finishing components are not yet fitted. Spray 15 finishing walls is faster than painting with a brush or a roller and usually gives a better finish. Further, sophisticated finishes, such as exotic wood grain effects, can also be provided to the architectural finishing components without the risk of damage being caused to them due to the need to adjust them in order to make them fit.

20 A further advantage of the present invention is that a house purchaser can easily change the architectural finishing components to match his or her tastes or as and when the architectural finishing components become shabby. To remove the architectural finishing components, the snap fit connections can be undone or snapped off.

A preferred application of the present invention will now be described, by way of example 25 only, with reference to the accompanying drawings in which: Figure 1 shows a sectional view of a door liner assembly in accordance with the present invention; Figure 2 is a partial, cut away section II - II through the door liner assembly of Figure 1; Figure 2A is a sectional view of a slide bar and an adjustment screw;

Figure 2B shows the detailing of a slide bar adjustment means; Figure 3 is an exploded perspective of a door liner and second locating component in accordance with the present invention; Figure 4 is a plan view of the second locating component of Figure 3; and 5 Figure S is an elevational view of the second locating component of Figure 3.

Referring to Figure 1, a cutaway sectional view of an architecturally finished building component in the form of a door frame lO is shown. The section is through either one of the uprights of a door frame or a lintel of a door frame 10.

A door frame 10 comprises two uprights 12 (one shown in Figure 3) and a lintel (not 10 shown) perpendicular to and connecting the two uprights 12 towards the tops thereof. The bottoms 14 of the uprights 12 rest against the floor 16 (see Figure 3).

The door frame lO comprises a door 18, a doorstop or door slammer 20, two door liners 22,24, two architraves 26, a slide bar 28 and two adjustment screws 30.

The two door liners 22,24, are adhered to a wall 32 by a polyurethane foam adhesive 34.

15 The wall has plastered surfaces 36 on either side thereof against which the architraves 26 rest. Referring now to Figure 2, a section through line II-II is shown. The door liner 22 has a groove 38 cut in a wall facing side of it for receiving the slide bar 28. Part of the slide bar 28 is contained in the groove 38, with the remaining part of the slide bar 28 being located 20 within the polyurethane foam adhesive 34. The screw 30 is also partially in the polyurethane foam adhesive 34. The remaining part of the screw 30 is screwed into the slide bar 28.

The two door liners 22,24 are generally long lengths. Generally they will have a length of approximately two metres. Along that length, a plurality of slide bars 28 may be provided.

25 By way of example, it will be assumed that there are three slide bars 28.

Referring to Figure 2A, each slide bar 28 is a length of tubular steel. The length of the steel will typically be 10 cm. The slide bar has a generally regular, substantially trapezium

shaped section. The section has a long base 40, two asymmetrical sides 42 and a slotted top 34. The slot 46 has inwardly depending flanges 48. The two flanges 48 generally oppose each other and are substantially parallel to each other.

The asymmetrical sides 42 are able to flex resiliently to enable the slot 46 to widen upon 5 screwing the screw 30 into the slot 46. The screw engages against the flanges 48. As shown in Figure 4, the screw is tapered to facilitate the expansion of the slot.

Alternatively, the flanges may be tapered relative to each other, i.e. non parallel, such that the slot is narrower at its deepest point.

Preferably, as shown in Figure 2B, screw receiving ports 50 are provided in the slot 46 for 1 0 defining a position for the screw 30 to be inserted into the slot 46. Figure 2B only shows one such screw receiving port 50 since it only shows one end of the slide bar 28. A similar screw receiving port 50 would be provided at the other end of the slide bar 28 since two screws 30 are provided in the slide bar 28 as can clearly be seen in Figure 1. More screws can be used, however, if desired.

15 The slide bar 28 is adapted to fit into the grooves 38 provided in each of the door liners 22, 24. Before the screws 30 are tightened into the slot 46 in the screw receiving ports 50, the slide bar 28 will freely slide within the groove 38. The fit can be a friction fit to prevent the door liners 22,24 and the slide bars 28 (there are three of them, as described above) from falling apart too easily. However, they can be loosely fitting. Once the screws have 20 been tightened in the slots 46, the asymmetric side walls 42 of the slide bar 28 will have been flexed outwardly to open the slot 46. This will cause the sides 42 to bear against the sides of the groove 38, which are tapered inwards to correspond substantially with the shape of the unexpanded slide bar 28, thereby causing the slide bar 28 to grip firmly in the groove 38. Once gripped, the slide bar 28 will no longer slide within the grooves 38 of the 25 door liners 22,24.

By having two screws 30, one end of the slide bar 28 can be locked in position on one of the door liners 22,24 before locking it in the groove 38 of the other door liner 22,24. Then, once the depth of the two door liners 22,24 has been adjusted to the required depth, i.e. the depth of the wall, the second screw 30 can be tightened to the lock the depth of the door 30 liner.

In order to fit the door liner to a opening in a wall 32, first of all, if the old door or door frame are still present in the wall, these are removed. This leaves a blank wall 32 with plaster 36 already applied. Into this opening, the door liner of the present invention is fitted. To do this, first of all the depth of the door liner is adjusted to correspond to the 5 thickness of the wall 32 by using the slide bar adjustment mechanism. Once both uprights, and if required, the lintel, have been adjusted to the required depth, they are locked at that depth by using the telescopic locking mechanism. They can then be offered to the opening for fitment thereto. Polyurethane foam adhesive 23 is used to pack and fill any gap between the door liners 22,24 and the wall 32. This polyurethane foam adhesive will 10 expand to engage with the backside of the door liners 22,24, the slide bars 28 and the screws 30 to lock the door liner in place. Preferably, a spacer bar is placed at the bottoms of the uprights to ensure that the width of the resultant door frame is correct not just at the top, which size is governed by the length of the lintel, but also at the bottom. Further guide bars can be used in the middle of the door frame during the setting process to ensure that 15 the uprights do not flex inwardly. Similarly, a ceiling brace may be required to prevent the lintel from flexing downwardly.

Once the polyurethane foaTn adhesive is set, a door frame has been successfully fitted to the opening in the wall 32. It will have a standard size, in terms of height and width, to fit a standard sized door thereto.

20 In Figure 1, architraves 26 are fitted to the walls. These have been fitted by gluing them to the sides of the walls. Alternatively they could be nailed to the walls.

Figure I also shows a door slammer 20. This has been glued to the door frame, in particular to the two door liners, to bridge the gap 52 between the two door liners. It may alternatively be screwed or nailed to the door frame.

25 Once the architraves 26 and the door slammer 20 have been fitted to the door frame, the door frame is architecturally finished.

As can be seen in Figure 1, the first door liner 22 has a first depth. The second door liner has a wider depth. These two depths can be important. If a door 18 is to be fitted to the door frame, the thickness of the door should govern where the door slamTner 20 is fitted to 30 the door frame. Therefore, the first door liner 22 should be of such a depth that the door

( 11 slammer can be fitted thereto such that the door 18 will have a flush front face 54 with the visible side of the first door liner 22. The back face 56 of the door 18 should rest against the door slammer 20. The depth of the second door liner 24 is then chosen to ensure that for a given wall thickness, the thickness of the wall will be covered by the door liner and 5 yet the door slammer 20 will still be able to bridge the gap 52.

The door slammer 20 may be prefixed to the first door liner 22. This is particularly advantageous when doors 18 of a standard thickness are to be fitted to the door frame.

However, when doors of different thicknesses are likely to be fitted, the door slammer should not be preattached to the first door liner 22.

10 Referring now to Figures 3, 4 and 5, an alternative means for fixing architrave to the door frame is described. This involves a bracket 58. The bracket comprises a first arm 60 and a second arm 62. The two arms 60, 62 are arranged perpendicular to each other to form an L-

shape. A slot 64 is provided at a distal end of the first arm 60. The length dimension of the slot is 15 perpendicular to both of the axes of the arms.

The second arm 62 has a trapezium shaped section of a size suitable to fit within the groove 38 of the door liner 22. The groove 38 could, however, have been cut into the uprights of a standard door frame.

The section of the second arm 62 of the bracket 58 is sized to be a drive fit into the groove 20 38 so that it will not easily be removable therefrom. The joint resembles a dovetail joint.

The slot 64 is for fixing architrave to the wall using, for example, double ended pin connections as described in GB0203179.7 or GB0221816.2, both of which have been referenced above. Further description of double ended pin connection system is not

believed to be necessary.

25 The first arm of the bracket 58 is also generally trapezium shaped. However, this is in plan, rather than in section. This is to provide a large distal end for receiving the slot 64.

The other end is smaller to correspond with the size of the second arm section. This reduces the amount of material required to manufacture the brackets.

( 12 The slot 64 is arranged substantially parallel to the top and bottom of the trapezium shaped second arm 62 and also the top and bottom of the trapezium shape of the first arm 60.

A cut out 66 may be provided in the wall 32 for receiving the first arm 60 of the bracket 58. This cut out 64 need not be cut into the wall 32 accurately since it will eventually be 5 covered by the architrave 26. The cut out 64 will facilitate, however, the mounting of the architrave 26 flat against the wall 32. Alternatively, a suitable cut out could be provided in the architrave 26.

The present invention provides methods and components for facilitating in the fitment of architecturally finished building components in existing buildings and enables more 10 applications of the double ended pin systems defined in GB0203179.7 and GB0221816.2 to be devised.

The present invention has been described above purely by way of example. Modifications in detail may be made to the invention as defined in the claims appended hereto.

Claims

/ ( 13 CLAIMS

1. A method of installing at least one architectural finishing component in a building comprising: a) installing a first locating component having a telescopically adjustable depth in an opening of a wall to form a locating reference for an architectural finishing 5 component, the first locating component having had its depth adjusted to match substantially the thickness of the wall.

2. The method of claim 1, further comprising the step of: b) installing to the first locating component a second locating component.

3. The method of claim 1 or claim 2, wherein the first or the second locating 10 component is adapted to receive the at least one architectural finishing component.

4. The method of claims, wherein the method comprises the step of c) attaching the at least one architectural finishing component to the said first or second locating component.

5. The method of any one of the preceding claims, wherein both the first and the second locating components are adapted to receive at least one architectural finishing 1 5 component.

6. The method of any one of the preceding claims, comprising: i) installing the first locating component; and then ii) attaching the second locating component to the first locating component.

7. The method of any one of claims 1 to 5, comprising: i) installing the second 20 locating component onto the first locating component and then ii) installing the first locating component to the wall.

8. The method of any one of the preceding claims, wherein the first locating component defines at least part of a door frame.

9. The method of claim 8, wherein the door frame has a standard upright height and a 25 standard lintel width.

10. The method of claim 9, wherein the depth of all three elements is adjustable for depth to match the thickness of a wall to fit neatly within an existing wall opening.

11. The method of any one of the preceding claims, wherein at least one architectural finishing component is an architrave.

12. The method of any one of the preceding claims, wherein at least one architectural finishing component is a door.

5 13. The method of any one of the preceding claims, wherein the at least one architectural finishing component is attached to the first or second locating component using a press-fit connection.

14. The method of claim 13, wherein the press-fit connection involves double-ended pms. 10 IS. A bracket for an architectural finishing component, the architectural finishing component having a part of a pressfit connection thereon, the bracket comprising a first portion suitable for securing the bracket to a wall and a second portion that in use extends parallel to the wall, the second portion having another part of the press-fit connection thereon. 15 16. The bracket of claim 15, wherein the first portion has an engagement means for engaging the bracket with a receiving means of a locating component for the architectural finishing component.

17. The bracket of claim 15 or claim 16, wherein the press-fit connection is a double-

ended pin connection, the locating component having a slot therein for receiving a first end 20 of the double-ended pin, the second end extending, in use, into the architectural finishing component. 18. The bracket of any one of claims 15 to 17, wherein the bracket comprises a first arm and a second arm extending perpendicular to the first arm, the another part of the press-fit connection being a slot being provided in the first arm.

25 19. The bracket of claim 18, wherein the second arm has a trapezium shaped section along its length.

20. The bracket of any one of claims 15 to 19, wherein the bracket is L shaped.

( 21. A door frame component comprising a first frame portion and a second frame portion that are telescopically adjustable relative to each other and a doorstop portion, the doorstop portion being fixable, in use, to first, substantially co-planar faces of the two door frame portions to bridge any gap therebetween.

5 22. The door frame component of claim 21, wherein the second, opposed faces of the door frame portions each have means for receiving a telescoping means between the two door frame portions so that the depth of the door frame component can be adjusted telescopically. 23. The door frame component of claim 22, wherein the telescoping means comprises a 10 slide bar.

24. The door frame component of claim 23, wherein securing means are provided on the slide bar for securing the slide bar within the means for receiving the telescoping means. 25. The door frame component of claim 24, wherein the means for securing comprises 1 S a screw adjustment for changing the profile of the slide bar.

26. The door frame component of any one of claims 23 to 25, wherein the slide bar has a generally trapezium shaped section.

27. The door frame component of claim 26, wherein the means comprises a partially closed groove having a trapezium shaped section suitable for receiving the trapezium 20 shaped section of the bracket defined in claim 19 with a friction fit, and the slide bar with a sliding fit.

28. A door frame assembly comprising two telescopically adjustable door frame portions and a doorstop portion, each door frame portion comprising two uprights and a lintel attached therebetween, the doorstop portion being adapted to bridge any gap between 25 the door frame portions.

29. The door frame assembly of claim 28, wherein the lintel is telescopically adjustable and has a doorstop portion.

! 16 30. A kit of building components for forming an architecturally finished building component comprising: 1) a first locating component for attaching to a wall, 2) a second locating component attachable to the first location component, the two locating components together being adapted to receive at least one architectural finishing 5 component for attachment of the at least one architectural finishing component to the wall, wherein once all the necessary architectural finishing components have been attached to the first or second locating component, the first locating component and the at least one architectural finishing component form at least partially visible parts of the architecturally finished building component and the second locating component forms an invisible part of 10 the architecturally finished building component.

31. A door frame assembly substantially as hereinbefore described with reference to Figures 1, 2, 2A and 2B.

32. A method of installing at least one architectural finishing component in a building substantially as hereinbefore described with reference to the accompanying drawings.

15 33. A bracket substantially as hereinbefore described with reference to Figures 3, 4 and 5. 34. A kit of building components substantially as hereinbefore described with reference to the accompanying drawings.