Traditionally in the UK we use Imperial measures in Inches to describe the depth and width of timber (even though we use metric measures in Meters to describe lengths).

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Timber is actually cut to metric measures in millimetres which approximate to the traditional imperial descriptions. The following gives the actual cut sizes for timber:

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2” x 2” / 45mm x 45mm

2” x 3” / 45mm x 70mm

2” x 4” / 45mm x 95mm

2” x 5” / 45mm x 120mm

2” x 6” / 45mm x 150mm

2” x 7” / 45mm x 170mm

2” x 8” / 45mm x 200mm

2" x 9" / 45mm x 228mm

3” x 4” / 70mm x 95mm

 

Battons are cut to 50mm x 25mm, 19mm x 38mm

 

CLS for studwork walls and general purposes is available in the following sizes:

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2” x 3” / 45mm x 70mm

2” x 4” / 45mm x 95mm

2” x 6” / 45mm x 150mm