BS EN 16351:2021 Timber Structures - Cross Laminated Timber Requirements

Discover the essential standard for cross laminated timber structures with the BS EN 16351:2021. This comprehensive document is a must-have for professionals in the construction and timber industries, providing detailed requirements and guidelines for the use of cross laminated timber (CLT) in structural applications.

Overview

The BS EN 16351:2021 standard is a pivotal resource for ensuring the quality, safety, and performance of timber structures. Released on March 10, 2021, this standard is the latest in a series of guidelines that address the specific needs of cross laminated timber, a material known for its strength, sustainability, and versatility in modern construction.

Key Features

• Standard Number: BS EN 16351:2021
• Pages: 100
• Release Date: March 10, 2021
• ISBN: 978 0 539 00276 8
• Status: Standard

Why Choose BS EN 16351:2021?

Cross laminated timber is increasingly becoming a preferred choice in the construction industry due to its environmental benefits and structural capabilities. The BS EN 16351:2021 standard provides a robust framework for the design and implementation of CLT in various building projects. Here are some reasons why this standard is indispensable:

Comprehensive Guidelines

With 100 pages of detailed information, this standard covers all aspects of cross laminated timber structures, from material specifications to design principles and construction practices. It ensures that all stakeholders have access to the latest and most reliable information.

Enhanced Safety and Performance

Safety is paramount in construction, and the BS EN 16351:2021 standard provides rigorous requirements to ensure that CLT structures meet high safety standards. It addresses critical factors such as load-bearing capacity, fire resistance, and durability, ensuring that structures are not only safe but also long-lasting.

Sustainability and Environmental Impact

Timber is a renewable resource, and cross laminated timber is celebrated for its low environmental impact. This standard supports sustainable building practices by promoting the use of CLT, which contributes to reduced carbon emissions and a smaller ecological footprint.

Versatility in Application

Whether for residential, commercial, or industrial projects, cross laminated timber offers unparalleled versatility. The BS EN 16351:2021 standard provides the necessary guidelines to leverage this versatility, allowing for innovative and efficient design solutions.

Who Should Use This Standard?

The BS EN 16351:2021 is an invaluable resource for a wide range of professionals, including:

• Architects and Designers
• Structural Engineers
• Construction Managers
• Timber Manufacturers and Suppliers
• Building Inspectors and Regulators

Conclusion

Incorporating the BS EN 16351:2021 standard into your projects ensures that you are at the forefront of modern construction practices. By adhering to these guidelines, you can achieve superior quality, safety, and sustainability in your timber structures. This standard is not just a document; it is a commitment to excellence in the field of cross laminated timber construction.

Embrace the future of construction with the BS EN 16351:2021 and make a significant impact on the built environment with innovative and sustainable timber solutions.

BS EN 16351:2021

This standard BS EN 16351:2021 Timber structures. Cross laminated timber. Requirements is classified in these ICS categories:

• 79.060.10 Plywood

This document sets out provisions regarding the performance of characteristics of the following Types of cross laminated timber for use in buildings and bridges:

1. Type 1: Straight or curved cross laminated timber comprising only timber layers but no large finger joints;

2. Type 2: Straight cross laminated timber comprising only timber layers and large finger joints;

3. Type 3: Straight cross laminated timber comprising timber and wood-based panel layers but no large finger joints.

This document covers cross laminated timber of all three Types of cross laminated timber:

1. manufactured according to this document, which sets up provisions for:

   1. boundary conditions during manufacture of cross laminated timber;

   2. moisture content and temperature of timber to be bonded;

   3. production of finger joints and bonds between layers;

2. to be used in service class 1 or 2 according to EN 1995?1?1 ;

3. made of coniferous species and poplar listed in this document;

4. which may be made of layers made of different species;

5. bonded with phenolic or aminoplastic or moisture curing one-component polyurethane or emulsion polymer isocyanate adhesives of adhesive Type I according to the respective standard;

6. made of timber laminations having a nominal width between 40 mm (including) and 300 mm (including);

7. built up of at least three orthogonally bonded layers (at least two of them timber layers);

8. which may have, depending on the number of layers, adjacent layers bonded parallel to the grain;

9. made of timber layers which are made of strength graded timber according to EN 14081?1 ;

10. made of timber layers having nominal thicknesses between 6 mm (including) and 47 mm (including);

11. made of timber layers which may comprise edge bonds;

12. having nominal overall thicknesses up to 500 mm.

Additional provisions of this document apply for straight cross laminated timber comprising only timber layers and comprising large finger joints (Type 2):

1. made from cross laminated timber pieces having the same cross-section and layup;

2. made from cross laminated timber pieces having nominal cross-sectional thicknesses from 51 mm (including) up to 345 mm (including) and nominal minimum thicknesses of the outer layers not less than 17 mm (including);

3. made from cross laminated timber pieces solely comprising timber layers;

4. made from plane cross laminated timber pieces;

5. with parallel x-axes of the jointed components;

6. with large finger joints having a finger length of at least 45 mm and fingers which are visible at the two narrow sides of the components;

7. having large finger joints bonded with phenolic or aminoplastic or moisture curing one-component polyurethane adhesives of adhesive Type I according to the respective standard.

Additional provisions of this document apply for straight cross laminated timber comprising timber and wood-based panel layers but no large finger joints (Type 3):

1. made of structural wood-based panels specified in this document;

2. made of one panel per layer and;

3. having thicknesses between 6 mm (including) and 45 mm (including).

This document applies to cross laminated timber untreated or treated against biological attack.

This document does not cover:

1. cross laminated timber treated with fire retardants;

2. cross laminated timber which is produced from re-used timber or wood-based panels comprising re-used timber.

It also lays down procedures for assessment and verification of constancy of performance (AVPC) of cross laminated timber.