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Can I use old plywood?

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Forum topic by Sandra posted 11-11-2012 12:38 AM 1083 views 0 times favorited 12 replies Add to Favorites Watch
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Sandra

4982 posts in 819 days


11-11-2012 12:38 AM

Good evening all,
I’m out of province visiting my mother in law, missing my shop and laptop!
There are several pieces of 3/4 ” plywood in her basement. It’s been stored flat, off the ground in a heated area. I’m guessing it’s 30 yrs old at the very least. Provided its not warped or decayed, is there any reason not to use it?
I’m planning on building a cart for my planer using 3/4 ply.
Thanks

-- No, I don't want to buy the pink hammer.


12 replies so far

View yrob's profile

yrob

340 posts in 2396 days


#1 posted 11-11-2012 12:43 AM

Why not ? What could possibly go wrong (famous last words..)

-- Yves

View patron's profile

patron

13156 posts in 2085 days


#2 posted 11-11-2012 12:45 AM

probably better than anything made today sandra

check the edges for de-lamination

sounds like a good score

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View pmayer's profile

pmayer

607 posts in 1809 days


#3 posted 11-11-2012 12:51 AM

if it looks ok i’m sure it will be fine.

-- PaulMayer, http://www.vernswoodgoods.com

View racerglen's profile

racerglen

2386 posts in 1524 days


#4 posted 11-11-2012 01:00 AM

Go for it, I have used 40 year old stuff my dad had, marine grade,
made an nice replacement wheel for his bandsaw..kinda says
something about holding the lamination eh ?

-- Glen, Vernon B.C. Canada

View Lifesaver2000's profile

Lifesaver2000

524 posts in 1856 days


#5 posted 11-11-2012 03:12 AM

I have a few small pieces of A/C grade plywood still left from a project I did about 30 years ago and it is still good when I saw into it. And the stuff is actually 3/4 of an inch, not 23/32 or some other weird size.

View Monte Pittman's profile

Monte Pittman

15450 posts in 1082 days


#6 posted 11-11-2012 04:25 AM

I agree with the better than today’s philosophy

-- Mother Nature created it, I just assemble it.

View gfadvm's profile

gfadvm

11478 posts in 1434 days


#7 posted 11-11-2012 05:00 PM

I have used lots of old ply. If it has areas of delamination along the edges, just squirt a healthy dose of wood glue in the gap, clamp, and you’ve saved it.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View yrob's profile

yrob

340 posts in 2396 days


#8 posted 11-12-2012 03:32 AM

Today I was at the BORG to get some plywood. Found several sheets that already had delaminations in them with significant gaps. You would think that at least when its new it ought to be in good shape but no.

-- Yves

View a1Jim's profile

a1Jim

112806 posts in 2321 days


#9 posted 11-12-2012 03:35 AM

What can it harm to try and use it ,go for it.

-- http://artisticwoodstudio.com Custom furniture

View crank49's profile

crank49

3506 posts in 1715 days


#10 posted 11-12-2012 03:59 AM

I have seen mold cause plywood to delaminate, but otherwise, just the age won’t make it break down in my experience.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

View Sandra's profile

Sandra

4982 posts in 819 days


#11 posted 11-13-2012 02:32 AM

Dang. Thought I was going to come home with some good 3/4 plywood, but when it was all said and done, none of the pieces were more than 7” wide at any point. I did come across a nice little combination square though that my mother-in-law didn’t want.

In the past few years, I’ve been helping her clean out parts of her house, and have found some doozies. Last time I cleaned out a basement closet I found a four shot .22 pistol in a bread bag, bullets included. She didn’t even know it was there. I had to have yet another conversation with my kids about safety at Grandma’s house….

Glad to be back home tonight.
Never a dull moment.

-- No, I don't want to buy the pink hammer.

View MonteCristo's profile

MonteCristo

2098 posts in 932 days


#12 posted 11-13-2012 03:48 AM

With plywood, the older the better. With every passing year they are using poorer and poorer logs to make plywood.

-- Dwight - "Free legal advice available - contact Dewey, Cheetam & Howe""

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