British Standards Institution - Committee

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B/518 - Structural timber

Sector: Construction

Categories: Fasteners | Building elements. General | Wood technology. Processes | Domestic and commercial equipment. Miscellaneous | Woodworking. Machines | Wood-based panels. Other | Structures. Timber | Plywood | Walls. Partitions. Façade | Construction equipment | Drawing equipment | Pins, nails | Power transmission and distribution networks. Other equipment | Power transmission and distribution lines | Domestic and commercial equipment. Entertainment. Sports | Bridge construction | Ceilings. Floors. Stairs | Construction materials | Wood-protecting chemicals | Fasteners. General | Structures. Other | Building elements | Semi-manufactures of timber | Building structures | Wood-based panels. General | Fasteners. Other | Wood, sawlogs and sawn timber | Generalities. Terminology. Standardization. Documentation.

Overview: Under the direction of the Standards Policy and Strategy Committee, is responsible for the UK input to CEN/TC 124 and the EC Mandate 112

Committee standards activity

In Progress (19)

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
Registration of a PWI for revision of EN 1383	Timber structures - Test methods - Pull through resistance Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Structures. Timber Proposal begins : 2023-04-24	Proposal
Registration of a PWI for revision of EN 1382	Timber structures - Test methods - Withdrawal capacity of timber fasteners Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Structures. Timber Proposal begins : 2023-04-24	Proposal
PD ISO/TR 3446	Timber Structures – Determination of characteristic values of sawn timber from tests on Small Clear Wood Specimens Categories: Unclassified documents Drafting begins : 2023-02-07	Drafting
PD ISO/TR 21136	PD ISO/TR 21136 Timber structures - Vibration performance criteria for timber floors Categories: Unclassified documents Approval begins :	Approval
PD CEN/TR WI 00124205	Timber structures — Preparation of the revision of the harmonised standards Categories: Unclassified documents Drafting begins : 2025-01-02	Drafting
ISO/TC 165 N 1252, ISO/NP 5257	Bamboo Structures -- Engineered bamboo composites -- Evaluation requirements Categories: Information management \| Standardization. General rules \| Measurement and Science \| Testing \| Construction \| Construction materials and building \| Building structures \| Structures. Timber \| Construction materials Proposal begins : 2020-05-07	Proposal
ISO/NP 7567 -	Bamboo Structures - Glued laminated bamboo - Product specification Categories: Information management \| Standardization. General rules \| Construction \| Construction materials and building \| Building structures \| Structures. Other Proposal begins : 2021-05-28	Proposal
BS ISO 9709:2018	Structural timber -- Visual strength grading -- Basic principles Categories: Wood, sawlogs and sawn timber Approval begins : 2018-10-02	Approval
BS ISO 8969	Timber structures -- Testing of punched metal plate fasteners and joints Categories: Structures. Timber Drafting begins : 2021-03-15	Drafting
BS ISO 25204	Mechanically Laminated Timber — Production and Qualification Requirements Categories: Unclassified documents Drafting begins : 2025-10-03	Drafting

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PD ISO/TR 21141:2022	Timber structures. Timber connections and assemblies. Determination of yield and ultimate characteristics and ductility from test data Categories: Wood, sawlogs and sawn timber \| Semi-manufactures of timber \| Structures. Timber Published standard begins : 2023-02-21	Published standard
BS ISO 5257:2023	Bamboo structures. Engineered bamboo products. Test methods for determination of mechanical properties using small size specimens Categories: Structures. Timber Published standard begins : 2024-02-05	Published standard
BS ISO 24323:2023	Timber structures. Design method for vibrational serviceability of timber floors Categories: Structures. Timber Published standard begins : 2023-12-20	Published standard
BS ISO 24322:2024	Timber structures. Methods of test for evaluation of long-term performance. Wood-based products in bending Categories: Structures. Timber Published standard begins : 2024-01-17	Published standard
BS ISO 23478:2022	Bamboo structures. Engineered bamboo products. Test methods for determination of physical and mechanical properties Categories: Structures. Timber Published standard begins : 2022-08-03	Published standard
BS ISO 22390:2020	Timber structures. Laminated veneer lumber. Structural properties Categories: Structures. Timber Published standard begins : 2020-04-07	Published standard
BS ISO 22389-2:2020	Timber structures. Bending applications of I-beams. Component performance and manufacturing requirements Categories: Structures. Timber Published standard begins : 2020-04-09	Published standard
BS ISO 22157:2019	Bamboo structures. Determination of physical and mechanical properties of bamboo culms. Test methods Categories: Wood, sawlogs and sawn timber Published standard begins : 2019-01-31	Published standard
BS ISO 22156:2021	Bamboo structures. Bamboo culms. Structural design Categories: Structures. Timber Published standard begins : 2021-06-07	Published standard
BS ISO 19993:2020	Timber structures. Glued laminated timber. Face and edge joint cleavage test Categories: Structures. Timber Published standard begins : 2020-04-16	Published standard

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS EN ISO 8970:2010	Timber structures. Testing of joints made with mechanical fasteners. Requirements for wood density Categories: Structures. Timber Withdrawn begins : 2020-04-08	Withdrawn
BS EN 912:2000	Timber fasteners. Specifications for connections for timber Categories: Fasteners. Other \| Structures. Timber Withdrawn begins : 2011-07-21	Withdrawn
BS EN 912:2000	NO TITLE Categories: Fasteners. Other \| Structures. Timber \| Construction materials Withdrawn begins : 2001-05-11	Withdrawn
BS EN 408:2010	Timber structures. Structural timber and glued laminated timber. Determination of some physical and mechanical properties Categories: Wood, sawlogs and sawn timber \| Wood-based panels. Other \| Structures. Timber Withdrawn begins : 2012-09-19	Withdrawn
BS EN 408:2003	Timber structures. Structural timber and glued laminated timber. Determination of some physical and mechanical properties Categories: Structures. Timber Withdrawn begins : 2011-05-12	Withdrawn
BS EN 391:2002	Glued laminated timber. Delamination test of glue lines Categories: Wood-based panels. Other Withdrawn begins : 2014-01-29	Withdrawn
BS EN 387:2001	Glued laminated timber. Large finger joints. Performance requirements and minimum production requirements Categories: Wood-based panels. Other Withdrawn begins : 2014-01-29	Withdrawn
BS EN 386:2001	Glued laminated timber. Performance requirements and minimum production requirements Categories: Wood-based panels. Other Withdrawn begins : 2014-01-29	Withdrawn
BS EN 385:2001	Finger jointed structural timber. Performance requirements and minimum production requirements Categories: Wood, sawlogs and sawn timber \| Structures. Timber Withdrawn begins : 2014-11-03	Withdrawn
BS EN 384:2016+A1:2018	Structural timber. Determination of characteristic values of mechanical properties and density Categories: Wood, sawlogs and sawn timber Withdrawn begins : 2022-10-14	Withdrawn

Message Committee Become a committee member

Committee members

Nominating organizations

B B A - British Board of Agrement
BM Trada Group
British Woodworking Federation
Co-opted - Structural Timber Expert
Committee Manager
Construction Products Association
Edinburgh Napier University
Institution of Civil Engineers
Power Fastenings Association
Structural Timber Association
The Wood Protection Association
Timber Trade Federation
Trussed Rafter Association

Liaisons with other committees

Chair - B/525/5
Co Opted - Timber Grading
Liaison - B/541
UK Expert - CEN/TC 124/WG 3
UK Expert - ISO/TC 165/WG 12
UK Expert – CEN/TC 124/WG 4
UK Expert – CEN/TC 124/WG 6
UK Expert – EN 14732

BSI roles

Committee Chair