Doubling up luan for thickness

  • Advertise with us

« back to Designing Woodworking Projects forum

Forum topic by NicodemusBC posted 07-11-2017 05:38 PM 1272 views 0 times favorited 3 replies Add to Favorites Watch
View NicodemusBC's profile


1 post in 2839 days

07-11-2017 05:38 PM

Topic tags/keywords: shed lumber plywood sheet scrap recycle question

I am looking to build a shed. I have access to scaps and leftovers from a local outdoor theatre. I get a lot of 2×4s and a few pieces of 3/4 plywood. There is usually also many sheets of 1/8 or 1/4 inch luan or floor underlayment. My question is whether or not I could double up these sheets to use as exterior sheet in on a small storage shed (under 120 sq. Ft.)? There is always Bgood amount if it and I hate to see it go to waste. Any other good ideas if what time do with this material?

3 replies so far

View ArtMann's profile


1483 posts in 1703 days

#1 posted 07-11-2017 09:16 PM

Two 1/4 inch sheets on top of each other aren’t nearly as stiff or strong as one 1/2 inch sheet. The only way I would do it is to laminate the two pieces together with glue and compression. It wouldn’t be worth it to me.

View MrUnix's profile


8244 posts in 3086 days

#2 posted 07-11-2017 09:26 PM

I grab every piece of underlayment I can find in dumpsters… and use it for all sorts stuff – but not exterior walls :)

It is great for quick-n-dirty shop projects, small boxes and organizers, small drawers and drawer dividers, scroll saw stuff if you are into that, and I even made the motor cover for my table saw out of it. Strong but lightweight, cuts easily and glues up great. Plus – the price is right.


-- Brad in FL - In Dog I trust... everything else is questionable

View woodbutcherbynight's profile


6333 posts in 3296 days

#3 posted 07-13-2017 03:26 AM

Visit some construction sites with a 6 pack or two of beer and you can have lots of cut offs of plywood or wafer board for your shop. Save the other stuff for smaller projects. I have a neighbor that is Mexican and he takes me to sites where he knows someone. Always amazed at what we bring back that would have been tossed otherwise.

-- Live to tell the stories, they sound better that way.

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