Flattening 1/4" Plywood

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by interpim posted 03-22-2009 06:32 AM 1555 views 0 times favorited 3 replies Add to Favorites Watch
View interpim's profile


1170 posts in 3480 days

03-22-2009 06:32 AM

Topic tags/keywords: question plywood

I have some 1/4” Oak Plywood, which has a slight bow to it. The panels I cut from it are fairly small (13” x 18”) and still retain this bow.

I have the panels raised from each end by a couple of 2” boards, and put another board in the center and added weight. Will this flatten the plywood back out? or should I try something else to get it flat?

-- San Diego, CA

3 replies so far

View Karson's profile


35125 posts in 4422 days

#1 posted 03-22-2009 06:38 AM

What is the ply going to be used as. Is there any other wood that can hold it flat?

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia †

View PurpLev's profile


8536 posts in 3670 days

#2 posted 03-22-2009 06:44 AM

usually 1/4” ply is used as a backer board, or a drawer bottom where it is held/fastened to a square frame which keeps it flat. 1/4” ply on it’s own will hardly stay flat.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View DaleM's profile


958 posts in 3405 days

#3 posted 03-22-2009 12:52 PM

I just had the same problem and it seemed that bending alone wasn’t taking the warp out. I sprayed it down with water on both sides, enough to penetrate a little, then weighted it down for awhile until it dried. It worked, sort of. It retained a slight bow in the other direction when it dried. I guess I had curved it too much, or wet it too much but it looks like it will work with some trial and error while I figure it out.

-- Dale Manning, Carthage, NY

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics