Timber decking

TRADA image

It is becoming increasingly popular for people to extend their living areas outdoors, into the garden. The commercial use of decking and walkways is also growing, with restaurants extending their dining areas and pubs providing smoking areas.

Timber decking represents one of the best ways to create 'a room in the garden' and decking can be attached to a property or freestanding.

This Choose and Use sheet covers the four basic deck types - Ground level, Floating (raised less than 60cms), High level (raised more than 60cms) and roof top.

This sheet will also guide anyone looking at the prospect of installing decking to understand the importance of specifying the correct timber, the need for and the types of preservative treatments available and also whether or not planning permission is likely to be required.


  • Timber
  • Timber strength class
  • Metal fixings
  • Site preparation
  • Construction principles
  • Laying deck boards
  • Deck parapets of balustrades


Suggested Reading

Decking: A builder's guidenavigation-arrow

It is the property owner's responsibility to check whether planning or building consent is required before work starts.

Article from the TRADA Timber Industry Yearbook 2013

01/01/2013 |  Magazine Article  

Timber engineering hardware and connectorsnavigation-arrow

The term 'timber engineering hardware' encompasses a diverse range of metal components made of steel plate, sheet or strip, which are used to connect timber members together, usually in conjunction with dowel-type metal fasteners.


Timber engineering components have widely replaced traditional carpentry joints, due to their ease of use,...

02/03/2022 |  Wood Information Sheet  

Design of structural timber connectionsnavigation-arrow

Connections are an essential part of any structure, and in timber structures they are often the most critical part of a design. The timber section size is often determined by the strength of the section remaining after drilling holes for bolts or dowels, or by the spacing requirements for the...

27/02/2017 |  Wood Information Sheet