Carcassing Timber

The phrase carcassing is normally used to refer to timbers processed for use in structural applications, for example roof battens, floor joists and studwork for partitioned walls.

Sydenhams have available a wide range of sizes and lengths of timber that can be strength graded and treated to your requirements.
To compliment our stock profile of carcassing timber, contact your local branch if you require:
Carcassing Timber
  • Lengths over 6m
  • Larger section sizes
  • Sizes not shown on website
  • C24 Strength grading
  • Non Standard Profiles (Firrings etc.)
  • Machined or Sawn

To see the full range of carcassing timber available from Sydenhams, see:

Machined Carcassing

We keep stocks of machined carcassing, including CLS and regularised Timber.

Visual Stress Grading

Our stress graded timber is either graded in the country of origin to BS4978 or visually stress graded at our milling facilities by our highly qualified stress graders. Minimum thickness we can do is 38mm.
Carcassing Timber

Kiln Drying

The majority of our Carcassing Timber is kiln dried to 20% or less moisture content in line with building regulations.

Product Description

Between 19mm and 150mm
Thickness Between 19mm and 300mm
Lengths 1.5m up to 7.2m
(Subject to branch availability & size)
Treatment Treated under license to Osmose AC-500
Vac-Vac Treatment (Organic Solvent PROTIM 418) Non-Treated also available
Grade C16 (from stock)
C24 (from stock)
Uses Internal Building Timbers
Boxing In
Floor Joists
Roof Trusses
Tile / Roof Batten
Framing Timber
Roof Soffit
Gravel Boards
Decking Support
Arbours, Arches & Garden Buildings
Edging Boards
Garden Furniture
Poultry Housing
Playground Equipment

Stock sizes available / Non-stock sizes available to order

19mm 25mm 38mm 47mm 75mm
100mm 150mm
38mm x x x
50mm x x x x
63mm x
75mm x x x x x
100mm x x x x x x
125mm x x x x x
150mm x x x x x x x
175mm x x x x x
200mm x x x x x
225mm x x x x x
250mm x x x
300mm x x x x