1、BRITISH STANDARD BS 4787-1: 1980 Incorporating Amendment Nos. 1, 2, and 3 Internal and external wood doorsets, door leaves and frames Part 1: Specification for dimensional requirements UDC 69.028.1:674.11:69.032BS4787-1:1980 This British Standard, having been prepared under the direction of the Timb
2、er Standards Committee, was published under the authorityof the ExecutiveBoardand comes into effect on 30 June 1980 BSI 08-1999 First published March 1972 First revision June 1980 The following BSI references relate to the work on this standard: Committee reference TIB/23 Draft for comment 78/12956
3、DC ISBN 0 580 11404 X Cooperating organizations The Timber Standards Committee, under whose direction this BritishStandard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: British Plastics Federation British Woodworking
4、Federation* Department of the Environment (Building Research Establishment Princes Risborough Laboratory)* Department of the Environment (Construction Industry Directorate) Department of the Environment (Housing and Construction)* Fibre Building Board Development Organization Limited* Forestry Commi
5、ssion Institute of Wood Science Institution of Civil Engineers Institution of Municipal Engineers Institution of Structural Engineers National Federation of Building Trades Employers National Sawmilling Association Royal Institute of British Architects* Royal Institution of Chartered Surveyors The S
6、oftwood Agents and Brokers Association Timber Packaging and Pallet Confederation Timber Research and Development Association* Timber Trade Federation The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with th
7、e preparation of this British Standard: Asbestos Cement Manufacturers Association Association of Builders Hardware Manufacturers British Lock Manufacturers Association Department of the Environment (Interdepartmental Construction Development Group) 1) Department of the Environment (PSA) Flat Glass M
8、anufacturers Association Greater London Council Guild of Architectural Ironmongers Institute of Carpenters Institution of Fire Engineers Joinery Managers Association Limited Modular Society for Advancement in Building North Group London Housing Consortium 1) Now disbanded Amendments issued since pub
9、lication Amd. No. Date of issue Comments 4737 November 1984 8721 June 1995 8963 December 1995 Indicated by a sideline in the marginBS4787-1:1980 BSI 08-1999 i Contents Page Cooperating organizations Inside front cover Foreword ii 1 Scope 1 2 References 1 3 Definitions 1 4 Sizing conventions 1 5 Size
10、s of doorsets, door leaves and frames 2 6 Sizes of glazing openings 6 7 Fire resisting doorsets 6 8 Deviations from plane, squareness and local surface flatness 6 9 Fixing positions for hardware 6 Appendix A Ancillaries 8 Figure 1 Key to dimensions only 2 Figure 2 Elevation of glazing openings in fl
11、ush door leaves 6 Figure 3 Elevation of glazing openings in panel door leaves 7 Table 1 Sizes of internal doorsets and their component parts 4 Table 2 Sizes of external doorsets and their component parts 4 Publications referred to Inside back coverBS4787-1:1980 ii BSI 08-1999 Foreword This revision
12、of BS 4787-1 has been prepared under the direction of the Timber Standards Committee. BS 4787-1 was first published in1972. Since then, experience has shown that minor amendments to the permissible deviations are desirable; these are made in this revised edition. Work sizes for external doors and do
13、orsets have also been amended to facilitate the combination of doors with windows. The opportunity has been taken to remove tables of work sizes for glazed openings, standard code references for door types and other parts of the 1972 edition no longer considered to be appropriate. The possible provi
14、sion of ancillary items (e.g. blockings, architraves etc.) has again been included inAppendix A. This first Part of BS 4787 deals only with metric dimensional requirements. It takes full account of the recommendations for dimensional co-ordination given in BS 4011, BS 4330 and PD 6444. It also takes
15、 account of BS 4471 and BS 1186-1 and BS 1186-2 and BS 6262, and of draft international standards currently being prepared insofar as they are relevant. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their cor
16、rect application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 to 8, an inside back cover and a back cover. This standard has been updated (see copyr
17、ight date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.BS4787-1:1980 BSI 08-1999 1 1 Scope This Part of this British Standard specifies the metric sizes for dimensionally co-ordinated internal and external wood doorsets, door leave
18、s and frames. The provision of ancillaries is covered in Appendix A. 2 References The titles of the publications referred to in this standard are listed on the inside back cover. 3 Definitions For the purposes of this standard, the following definitions apply. For the definition of other terms, see
19、BS 565, BS 3589 and ISO 1804. 3.1 doorset an assembly, comprising a fixed part (the door frame) and one or more movable parts (the door leaves) and their hardware, the function of which is to allow or prevent access. The doorset may include sill, overpanel and side panel NOTEThe doorset may be suppl
20、ied in component form. 3.2 external exposed to the effects of the weather 3.3 internal not exposed to the effects of the weather 3.4 sill the bottom horizontal member of a door frame 3.5 ceiling height set a doorset which includes a space above the transom over the door. It may or may not extend to
21、the ceiling 4 Sizing conventions 4.1 The margin shown at head and jambs (thedistance between the joint face of the frame and the reference line) of each type of doorset includes an allowance for erection, positioning and jointing, as normally required in building practice. Permissible deviations giv
22、en for individual components do not imply that these would necessarily produce a perfect fit between doors and frames. 4.2 All sizes specified in this standard are as at the time of handing over the doorset, door or frame to the purchaser and are at the moisture content agreed between the manufactur
23、er and the purchaser at the time of order as specified in BS1186-1.BS4787-1:1980 2 BSI 08-1999 5 Sizes of doorsets, door leaves and frames 5.1 Co-ordinating and work sizes of internal doorsets. The sizes of internal doorsets and their component parts shall be as given in Table 1. Figure 1 Key to dim
24、ensions onlyBS4787-1:1980 BSI 08-1999 3 Table 1 Sizes of internal doorsets and their component parts Dimension (seeFigure 1) Size Permissible deviation Symbol Description A Co-ordinating dimension: height of door leaf height sets mm 2100 mm G Co-ordinating dimension: height of ceiling height set 230
25、0 2350 2400 2700 3000 B Co-ordinating dimension: width of all doorsets (S. single leaf set, D. double leaf set) 600 S 700 S 800 S and D 900 S and D 1000 S and D 1200 D 1500 D 1800 D 2100 D A 2 Work size: height of door leaf height set 2090 2.0 G 2 Work size: height of ceiling height set 2285 2335 23
26、85 2685 2985 2.0 B 2 Work size: width of all doorsets (S. single leaf set, D double leaf set) 590 S 690 S 790 S and D 890 S and D 990 S and D 1190 D 1490 D 1790 D 2090 D 2.0 d 3 Door leaf height for all doorsets 2040 1.5 e 3 s Width of door leaf used in single leaf sets (F. flush leaf, P. panel leaf
27、) 526 F 626 F 726 F and P 826 F and P 926 F and P 1.5 e 3 d Width of one leaf of an equal double leaf doorset (F. flush leaf, P. panel leaf) (Dimensions of pairs of doors assume square meeting stiles with 2mm clearance between leaves. If rebated meeting stiles are required, then leaf width is to be6
28、.5mm wider than stated, to allow for a 13mm rebate.) 362 F 412 F 462 F 562 F and P 712 F and P 862 F and P 1012 F and P 1.5 BS4787-1:1980 4 BSI 08-1999 Table 1 Sizes of internal doorsets and their component parts Table 2 Sizes of external doorsets and their component parts Dimension (see Figure 1) S
29、ize Permissible deviation Symbol Description mm mm f 3 Door leaf thickness 40 44 + 1.0 2.0 g Doorstop width (solid or otherwise) 13 2.0 f 2 Rebate depth 42 46 0.5 Clearance between: leaf and jamb leaf and head leaf and transom leaf and sill These measurements to be taken at sill and either head or t
30、ransom 2 at each side 2 2 3 + 1.0 0.5 (When the door leaf and frame are supplied separately, provision for these clearances will be required to be made on site.) NOTE 1The thickness dimension C is not of great importance in the doorset, but consideration should be given to its relationship to standa
31、rdized sizes of sawn timber (see BS 4471 ) and to the finished thicknesses of partitions. NOTE 2Where smoke seals are to be fitted, other clearance sizes and related permissible deviations between door leaf and jamb, head, transom and sill may be specified. Dimension (seeFigure 1) Size Permissible d
32、eviation Symbol Description A Co-ordinating dimension: height of door leaf height sets mm 2100 mm G Co-ordinating dimension: height of ceiling height set 2300 2350 2400 2700 3000 B Co-ordinating dimension: width of all doorsets (S. single leaf set, D. double leaf set) 900 S 1000 S 1 200 D 1 500 D 1
33、800 D 2 100 D A 2 Work size: height of door leaf height set 2 095 2.0 G 2 Work size: height of ceiling height set 2 295 2 345 2 395 2 695 2 995 2.0 BS4787-1:1980 BSI 08-1999 5 5.2 Co-ordinating and work sizes of external doorsets. The sizes of external doorsets and their component parts shall be as
34、given in Table 2. Table 2 Sizes of external doorsets and their component parts Dimension (see Figure 1) Size Permissible deviation Symbol Description mm mm B 2 Work size: width of all doorsets (S. single leaf set, D. double leaf set) 895 S 995 S 1 195 D 1 495 D 1 795 D 2 095 D 2.0 d 3 Door leaf heig
35、ht for all doorsets 1 994 1.5 e 3 s Width of door leaf in single leaf sets (F. flush leaf, P. panel leaf) 806 F and P 906 F and P 1.5 e 3 d Width of one leaf of a double leaf doorset (F. flush leaf, P. panel leaf) (Dimensions of pairs of doors assume square meeting stiles with 2mm clearance between
36、leaves. If rebated meeting stiles are required, then leaf width is to be 6.5mm wider than stated, to allow for a 13mm rebate.) 552 F and P 702 F and P 852 F and P 1 002 F and P 1.5 f 3 Door leaf thickness 40 44 1.5 g Doorstop width (solid or otherwise) 13 + 2.0 0 f 2 Rebate depth 43 47 0.5 Clearance
37、 between: leaf and jamb leaf and head leaf and transom leaf and sill These measurements to be taken at sill and either head or transom 1.5 at each side 1.5 1.5 1.5 + 1.0 0.5 (When the door leaf and frame are supplied separately, provision for these clearances will be required to be made on site.) NO
38、TE 1The thickness dimension C is not of great importance in the doorset, but consideration should be given to its relationship to standardized sizes of sawn timber (see BS 4471) and to the finished thicknesses of partitions. NOTE 2Where smoke seals are to be fitted, other clearance sizes and related
39、 permissible deviations between door leaf and jamb, head, transom and sill may be specified. BS4787-1:1980 6 BSI 08-1999 5.3 Sizes of internal and external door leaves (for single doors). The sizes, in millimetres, of internal door leaves for single doors shall be as follows: 526 2040 40 or 44 626 2
40、040 40 or 44 726 2040 40 or 44 826 2040 40 or 44 926 2040 40 or 44 The sizes, in millimetres, of external door leaves for single doors shall be as follows: 806 1994 40 or 44 906 1994 40 or 44 NOTEThese sizes have been extracted from Table 1 and Table 2 for the convenience of the user of this standar
41、d. 6 Sizes of glazing openings 6.1 Glazing openings in flush door leaves. Glazing openings in flush door leaves are not standardized, but the minimum sizes for the members shown in Figure 2 shall be as follows: M 1 : 100 mm; M 2 : 250 mm. 6.2 Work sizes of glazing openings in internal and external p
42、anel door leaves 6.2.1 Glazing openings in panel door leaves are not standardized, but the minimum sizes for the members shown in Figure 3 shall be as follows: M 1 :85 mm; M 2 : 175 mm; M 3 :22 mm. 6.2.2 In a two panel door the height to the top of the mid-rail (H 1 ) shall be as follows: H 1: 910 2
43、.0mm. NOTEThis requirement will ensure that the mid-rail aligns with the sight line of the sill of a standard 1 200mm high window having a lintel common with that of the door frame. 7 Fire resisting doorsets Only the co-ordinating dimensions A, G, and B of Table 1 and Table 2 shall apply to fire res
44、isting doorsets. The permissible deviations given for clearance between door leaf and frame shall also apply except where smoke seals are fitted (see note 2 to Table 1 and Table 2). 8 Deviations from plane, squareness and local surface flatness 8.1 Deviations from plane in a door leaf, when measured
45、 in accordance with BS 5277, shall not exceed the following: bow in the Length: 4 mm; cup (horizontal bow): 2mm; deviation from true plane (twist): 6mm. 8.2 Deviations from squareness in a door leaf, when measured in accordance with BS5278, shall not exceed1.5mm in 500mm. 8.3 Deviations from local s
46、urface flatness in any position or direction in a door leaf, when measured with a 200mm bridge, shall not exceed 0.50mm. 9 Fixing positions for hardware 9.1 Position of lock/latch. The centre line of the lock/latch cavity shall be positioned centrally in the height of the leaf unless otherwise speci
47、fied. 9.2 Position of lock/latch block. The position of blocking for the lock/latch shall be clearly indicated. 9.3 Position of hinges. The centre lines of hinges shall be spaced equidistant from the centre line of the height, with a permissible deviation of 1.0mm. On external doors or door leaves e
48、xceeding 20 kg in weight, a third hinge shall be provided on the centre line. Figure 2 Elevation of glazing openings inflush door leavesBS4787-1:1980 BSI 08-1999 7 Figure 3 Elevation of glazing openings inpanel door leavesBS4787-1:1980 8 BSI 08-1999 Appendix A Ancillaries When agreed between the manufacturer and the purchaser at the time of order, provision may be made for the following ancillaries. a) Blockings in flush door leaves to receive special items of hardware, e.g.overhead closers, security fittings and letter plates. b) Architraves and cover strips to
