LumberJocks

glue up question

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by BCO posted 07-30-2015 02:53 AM 825 views 0 times favorited 6 replies Add to Favorites Watch
View BCO's profile

BCO

7 posts in 494 days


07-30-2015 02:53 AM

Topic tags/keywords: question

Hi, I’m new to this forum and have a question perhaps someone can help with. I am working on a few projects, one is a wood tray I rabbeted the hardwood sides to hold the 1/4” plywood bottom. I made a few and glued the plywood into the rabbet. I like the added rigidity but wonder if this could be a future expansion / contraction issue.
Second project involves gluing oak flooring to a 3/4 birch ply base, cutting into a shape and edge banding it, with the same expansion / contraction concern.
The glue is titebond ultimate, the slower setting one.
Thanks
BCO


6 replies so far

View distrbd's profile

distrbd

2227 posts in 1908 days


#1 posted 07-30-2015 03:06 AM

Post a couple of pictures so those who want to help , can see what the projects look like.

-- Ken from Ontario, Canada

View DKV's profile

DKV

3940 posts in 1966 days


#2 posted 07-30-2015 05:05 AM

I’m with distrbd, let’s see some pix of what you’re doing. If the pieces are not too big you shouldn’t have any problems.

-- This is a Troll Free zone.

View jerryminer's profile

jerryminer

528 posts in 903 days


#3 posted 07-30-2015 07:18 AM

Pics would help, but as a general rule, gluing plywood into a wood frame is fine. The plywood does not expand/contract like a solid wood panel would, and the frame parts are usually small enough in width (less than 4” or so) that everything is stable enough.

Oak flooring on plywood could be a different issue. It will depend a lot on the dimensions of the piece. If large enough and unsupported (as opposed to actual flooring where the plywood subfloor is fully supported by the framing structure underneath) the piece could warp due to the different expansion rates of the oak vs. plywood.

For a small piece, you could probably get away with it. You might, though, end up with some gaps at the joints between flooring boards.

View rwe2156's profile

rwe2156

2190 posts in 942 days


#4 posted 07-30-2015 09:50 AM

Depends on width of what you’re making.
I usually figure on 1/16” per 12” of width, but it depends on wood, moisture content at time of build, season of year its built, etc.

But yeah, IMO the flooring glued down to plywood can be a problem.

-- Everything is a prototype thats why its one of a kind!!

View BCO's profile

BCO

7 posts in 494 days


#5 posted 07-30-2015 12:55 PM

Thank you all for the responses. The oak on plywood is a 24” circle, so rather small.
Thanks
BCO

View a1Jim's profile

a1Jim

115202 posts in 3039 days


#6 posted 07-30-2015 01:40 PM

I agree with Jerry

-- http://artisticwoodstudio.com Custom furniture

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

HomeRefurbers.com