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I know that for some kinds of lumber there is significant difference in nominal and actual size (for instance 2 by 4).

How is with KVH (dried and glued up construction lumber used in EU)? What are actual dimensions of 60x140x13000mm sleeper?

Davorin Ruševljan
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    As far as I know those are actual, not nominal but I'm not certain. Hopefully someone will be along who does know for sure. – Graphus Apr 26 '16 at 08:39
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    A quick search found me this: KVH is prevailingly used for structures the cross-section of which is determined by carrying capacity (according to DIN 4074-1 standard). It looks like DIN 4074-1 is not for free online. – grfrazee Apr 26 '16 at 12:59
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    I'd suggest contacting the manufacturer or a reseller to find out. When we purchased our laminated 2x header for our garage door, it was standard 2x4s glued together, so it was actually 1 3/4" thick, just like a regular 2x4. If the beam is dimensioned in nominal units, but delivered in that actual dimension, it wouldn't fit in with the rest of the nominally dimensioned framing. – FreeMan May 04 '16 at 17:28

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You can be assured that the actual cross-sectional dimensions are reasonably close to the nominal dimensions with KVH lumber/timber. Realize that any cross-sectional dimension of wood is going to change depending on the humidity

According to page 7 of this brochure from WOODPRODUCTSfi the actual size is:

  • plus or minus 1.0 mm for dimensions less than or equal to 100 mm
  • plus or minus 1.5 mm for dimensions greater than 100 mm.
Ast Pace
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