Wood Warping
Wood Warping
(OP)
What precautions can be taken to minimize the amount of warping for lumber with exposure to moisture?
-Will a No.1 warp less than a No.2?
-Will treating the wood prevent warping?
-Would a quarter-sawn piece of lumber warp more than a flat-sawn cut? If so, is it typical to specify this?
This is for the roof members of a large pergola, so it will see essentially zero load and any warping will be visible.
Thanks
-Will a No.1 warp less than a No.2?
-Will treating the wood prevent warping?
-Would a quarter-sawn piece of lumber warp more than a flat-sawn cut? If so, is it typical to specify this?
This is for the roof members of a large pergola, so it will see essentially zero load and any warping will be visible.
Thanks





RE: Wood Warping
Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.
RE: Wood Warping
You can try and specify it all you want but in the end the contractor will be buying whatever lumber is available and installing it.
The only piece that will be unlikely to warp is a piece cut perfectly from the centre of the trunk. The shrinkage on each face would be roughly equivalent and would help prevent warping.
RE: Wood Warping
http://www.fpl.fs.fed.us/products/publications/sev...
Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.
RE: Wood Warping
RE: Wood Warping
No. 1 lumber is less likely to warp than No. 2 lumber, since No. 2 lumber is allowed to have more aberrations than No. 1 that are likely to contribute to warping issues.