1、BS 1722-5:2006Fences Part 5: Specification for close-boarded fences and wooden palisade fencesICS 91.090NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDIncorporating Corrigendum No. 1Publishing and copyright informationThe BSI copyright notice displayed in this
2、document indicates when the document was last issued. BSI 2010ISBN 978 0The following BSI references relate to the work on this standard:Committee reference B/201Draft for comment 06/30139499 DCPublication historyFirst published May 2006Second edition April 1963Third edition October 1972Fourth editi
3、on June 1986Fifth edition March 1999Sicth (present) edition November 2006Amendments issued since publicationAmd. no.Date Text affectedBS 1722-5:2006580 72023 9Corr. 1 31 August 2010 See Foreword BSI 20 iBS 1722-5:2006ContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 24 Desi
4、gnation, dimensionsand general characteristics 25 Wire 66 Concrete components 77 Timber components 138 Fittings 169 Installation 1710 Statement of conformity 20AnnexesAnnex A (normative) Concrete components 22Annex B (normative) Timber components 24Annex C (informative) Suggestedsampling method for
5、use when measuring the limiting characteristics of timber 33Annex D (informative) Determination of moisture content 33Annex E (informative) Specifying a close-boarded or palisade fence 34Bibliography 37List of figuresFigure 1 General arrangement of a close-boarded fence 5Figure 2 General arrangement
6、 of awooden palisade fence 6Figure 3 Dimensionsof morticed concrete posts 8Figure 4 Dimensions of recessed concrete posts 9Figure 5 Dimensionsfor morticed timber posts 10Figure 6 Dimensions for recessed timber posts 12Figure 7 Details of housings for arris rails in recessedconcrete posts 13Figure B.
7、1 Knot projection 29Figure B.2 Measurement of wane 30Figure B.3 Measurement of slope of grain 30Figure B.4 Measurement of checks and end shakes 31Figure B.5 Measurement of straightness 32List of tablesTable 1 Designation, dimensions and general characteristics of close-boarded fences 3Table 2 Design
8、ation, dimensions and general characteristics of wooden palisade fences 4Table B.1 Characteristics and defects of sawn softwoods andhardwoods 28Table C.1 Single sampling plan 33Table D.1 Determination of moisture content of timber to be treated for use in fencing 34Summary of pagesThis document comp
9、rises a front cover, an insidefront cover, pagesito iv, pages 1 to 37 and a back cover.10BS 1722-5:2006ii BSI 2010ForewordPublishing informationThis part of BS 1722 was published by BSI and came into effect on 30 November 2006. It was prepared by Technical Committee B/201, Fences and gates. A list o
10、f organizations represented on this committee can be obtained on request to its secretary.SupersessionThis part of BS 1722 supersedes BS 1722-5:1999, which is withdrawn.Relationship with other publicationsBS 1722 is published in parts as follows:Part 1: Specification for chain link fences;Part 2: Sp
11、ecification for strained wire and wire mesh netting fences;Part 4: Specification for cleft chestnut pale fences;Part 5: Specification for close-boarded and wooden palisade fences;Part 7: Specification for wooden post and rail fences;Part 8: Specification for mild steel (low carbon steel)continuous b
12、ar fences and hurdles;Part 9: Specification for mild steel (low carbon steel) fences with round or square verticals and flat horizontals;Part 10: Specification for anti-intruder fences in chain link and welded mesh;Part 11: Specification for prefabricated wood panel fences;Part 12: Specification for
13、 steel palisadefences;Part 13: Chain link fences for tennis court surrounds1);Part 14: Specification for open mesh steel panel fences;Part 16: Specification for organic powder coatings to be used as a plastics finish to components and mesh;Part 17: Specification for electricsecurity fences Design, i
14、nstallation and maintenance; Part 18: Specification for steel mesh site perimeter temporary fencing systems 2).Information about this documentIt should be noted that no attempt has been made to standardize fences or gates which are of apurely decorative nature, or those suited tospecial requirements
15、; nor to specify requirements for “patent”proprietary fencing systems. However, the structure of such fences or gates is tobe in accordance with the applicable clauses of this part ofBS 1722.1) Obsolescent.2) Part 18 is in development and will be published as a Draft for Development (DD).The start a
16、nd finish of text introduced or altered by Corrigendum No. 1 is indicated in the text by tags . PQ BSI 2010 iiiBS 1722-5:2006This standard aims to establish minimum requirements for materials and workmanship for close-boarded fences and wooden palisade fences in order to ensure satisfactory service
17、for the purchaser and to assist manufacturers and installing contractors by eliminating unnecessary minor variations in the demands of purchasers. It specifies requirements for the components that make up a fence and for the wayin which the fenceneeds to be constructed. Choosing a suitable fence is
18、affectedby factors such as intended purpose, the desired service life, aesthetic considerations and availability of components. The specifier can match a suitable choice of fence to its intended purpose by reference to Tables 1 and 2, and also inform those installing the fence of the basic character
19、istics required.Premature failure can be avoided by taking care not to damage protective treatments during installation.Ground conditions might indicate that a variation in length of a post or strut, or the depth to which these would be set,is desirable. The posts and struts and setting depths speci
20、fied in this standard are intended for use in normal ground conditions, but if special conditions exist that warrant variations in the specification, e.g. the ground is softer or firmerthan usual, such a change needs to be agreed with the specifier.It is generally assumed in this standard that the f
21、ence is installed on horizontal ground. Where the fence is installed on a gradient, special measures may be required.Use of this documentIt has been assumed in the drafting of this part of BS 1722 that the execution of its provision is entrusted to appropriately qualified and experienced people. Bef
22、ore installation commences the Lead Installer should hold a current FISS/CSCS registration card skilled level (blue card) or equivalent and all other operatives should hold the basic fence operative card (green card) or equivalent.At the time of publication of this British Standard the registration
23、cards are validated by the Joint Fencing Industry Skills Scheme(FISS) and Construction Scheme Skills Certification Scheme (CSCS). FISS/CSCSmaintains a national register of fence installers and operatives. There might be other schemes available.Presentational conventionsThe provisionsof this standard
24、 are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Requirements in this sta
25、ndard are drafted in accordance with The BSI guide to standardization Section 2: Rules for the structure, drafting and presentation of British Standards, subclause 11.3.1, which states, “Requirements should be expressed using wording such as: When tested as described in Annex A, the product shall .”
26、. Thismeans that only those products that are capable of passing the specified test will be deemed to conform to this standard.BS 1722-5:2006iv BSI 2010Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible f
27、or its correct application.Compliance with a British Standard cannot conferimmunity from legal obligations. BSI 2010 1BS 1722-5:20061ScopeThis part of BS 1722 specifies requirements for close-boarded and wooden palisade fences. It includes requirements for the installation of the fencing at the spec
28、ified location.This standard specifies requirements for protective treatments. However, maintenance, which is an important aspect of extending the service life of the fence, is outside the scope of this standard.This standard includes requirements for sizes of components, together with the permissib
29、le tolerances on size. These are minimum requirements and it will normally be acceptable to use larger sizes, except if this could adversely affect the fitting of components or if replacement parts are required to match with those already present.2Normative referencesThe following normative document
30、s contain provisions which, throughreference in this text, constitute provisions of this part of this British Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latestedition of the publication referred to ap
31、plies.BS 957-2, S pecification for feeler gauges Part 2: Metric unitsBS 1202-1, S pecification for nails Part 1: Steel nailsBS 3892 (all parts), Pulverized fuel-ashBS 4027, S pecification for sulfate resisting Portland cementBS 4102, S pecification for steel wire and wire products for fencesBS 4449,
32、 Steel for the reinforcement of concrete Weldablereinforcing steel Bar, coil and decoiled product SpecificationBS 4482, Steel wire for the reinforcement of concrete products SpecificationBS 4483, Steel fabric for the reinforcement of concrete SpecificationBS 4652, S pecification for zinc-rich primin
33、g paint (organic media)BS 4978, S pecification for visual strength grading of softwood BS 8417:2003, Preservation of timber RecommendationsBS 8500 (all parts), Concrete Complementary British Standard to BS EN 206-1BS EN 197-4, Cement Part 4: Composition, specifications and conformity criteria for lo
34、w early strength blastfurnace cementsBS EN 206-1, Concrete Part 1: Specification, performance,production and conformityBS EN 212, Woodpreservatives General guidance on sampling and preparation for analysis of wood preservatives and treated timberBS EN 335-2, Durability of wood and wood-based product
35、s Definition of use classes Part 2: Application to solid woodBS 1722-5:20062 BSI 20BS EN 350-2, Durability of wood and wood-based products Natural durability of solid wood Part 2: Guide to the natural durability and treatability of selected wood species of importance in EuropeBS EN 844-9, Round and
36、sawn timber Terminology Part 9: Terms relating to features of sawn timberBS EN 10223-1, Steel wire and wire products for fences Part 1: Zinc and zinc alloy coated steel barbed wireBS EN 10244-2, S teel wire and wire products Non-ferrous metallic coatings on steel wire Part 2: Zinc or zinc alloy coat
37、ings BS EN 12620, Aggregates for concreteBS EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and testmethods3Terms and definitionsFor the purposes of this part of BS1722, the terms and definitions given in BS EN 844-9 and the following apply.3.1structural
38、 componentsposts and main rails3.2non-structural componentsgravel boards, feather-edged boards, palisades, capping, counter rails, stumps and cleats4Designation, dimensions and general characteristics4.1 The dimensions and general characteristics of close-boardedfences, and their corresponding desig
39、nation, shall be as given inTable 1.4.2 The dimensions and general characteristics of wooden palisadefences, and their corresponding designation, shall be as given inTable 2.NOTE The general arrangement of a close-boarded fence is shown in Figure 1, and of a wooded palisadefence in Figure 2.10 BSI 2
40、010 3BS 1722-5:2006Table 1Designation,dimensions and general characteristics of close-boarded fences Fence typedesignationHeight of fencemTypicalapplicationsNo. ofmain railsConcrete posts A)TimberpostsenceswithoakFencesRecessedMorticedLengthmSectionmmWithconcrete postsWithoakposts B)Withconcrete pos
41、tsWith posts B)Length mSectionmmLengthmSectionmmRecessedC)Morticed B)RecessedC)Morticed B)PCR 105PCM 105PW 105BCR105BCM 105BW1051.05Housing, parks (inner fences)21.6All 140 115at base, taperingto 100 1151.75All 140 1151.65100100PCR 120PCM 120PW 120BCR120BCM 120BW1201.20Generalpurposes21.751.901.8010
42、0 125PCR 150PCM 150PW 150BCR150BCM 150BW1501.50Generalpurposes32.202.352.10100 125PCR 165PCM 165PW 165BCR165BCM 165BW1651.65Housing32.352.502.40100125PCR 180APCM 180APW180ABCR180ABCM180ABW 180A1.80Housing32.502.652.70100 125PCR 180B D)PCM 180BD), E)PW180BD), E), F)BCR 180BD)BCM 180BD), E)BW180BD), E
43、), F)1.80Parks, railways,commercial andpublicbuildings32.502.652.70G)100 150NOTEAll lengthsare for normal ground conditions.A)SeeFigure 3, Figure 4 and Figure7 for further details.B)Morticed posts may be used with or without gravel boards.C)Recessedposts are usedwithout cappings orgravel boards.D)Se
44、parate extension armsand barbed wire may be attached.E)A cappingshall be provided.F)A single line of barbed wiremay be directlyattached to extended timber posts.(See9.3.7.1.)G)If asingle line of barbed wire isspecified for direct attachment to the post (see 9.3.7.1),thepostlength shall be atleast 2.
45、70 m.FwithsoftwoodsoftwoodPQPQPQBS 1722-5:20064 BSI 20Table 2 Designation, dimensions and general characteristics of wooden palisade fences Fence type designation Height of fencemTypical applicationsNo. of mainrailsConcrete posts A) Timber postsWithconcrete postsWith timber postsLengthmSectionmmLeng
46、thmSectionmmWPC 105 WPW 105 1.05 Housing, parks,inner fences21.60All 140 115 at base, tapering to 100 1151.65 100 100WPC 120 WPW 120 1.20 General purposes 21.75 1.80 100 125WPC 150 WPW 150 1.50 General purposes32.20 2.10 100 125WPC 165 WPW 1651.65 Housing32.35 2.40 100 125WPC 180A WPW 180A 1.80 Hous
47、ing 32.50 2.70 100 125WPC 180B B) WPW 180B B), C)1.80 Parks, railways, commercial and public buildings32.50 2.70 D) 100 125NOTE All lengths are for normal ground conditions.A) See Figure 4 and Figure 7 for further details.B) Separate extension arms and barbed wire may be attached.C) A single lineof
48、barbed wire may bedirectly attached to extended timber posts (see 9.3.7.1 .)D) If a single line of barbed wire is specified for direct attachment to the post (see 9.3.7.1), the post length shall be atleast 2.70 m.10 BSI 2010 5BS 1722-5:2006Figure 1 General arrangement of a close-boarded fenceKey1Arr
49、is rails2Rounded top, could also be weathered two-way or four-way3Counter rail4Capping5Post weathered and continuous capping6Plain tops7Gravel board8Cleat9Centre stump123 4 5 67 89BS 1722-5:20066 BSI 205Wire5.1 GeneralAll wire shall conform to BS 4102.5.2 Tying wireTying wire shall be of zinc-coated low-carbon steel (mild steel) and shall have a nominal wire diameter of 2 mm.5.3 Barbed wireBarbed wire shall conform to BS EN 1022
