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1/4" plywood is NOT actually 1/4"

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Forum topic by lazyborn1 posted 08-02-2009 04:34 PM 1633 views 0 times favorited 8 replies Add to Favorites Watch
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lazyborn1

20 posts in 2713 days


08-02-2009 04:34 PM

I bought some 1/4” birch plywood and found that the actual dimension is 3/16”. Does some one know who sells 1/4” (exact) plywood?

Thanks
Lazy


8 replies so far

View Mark Shymanski's profile

Mark Shymanski

5314 posts in 3178 days


#1 posted 08-02-2009 04:46 PM

Check out this discussion:
http://lumberjocks.com/topics/5650

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View HokieMojo's profile

HokieMojo

2103 posts in 3193 days


#2 posted 08-02-2009 05:27 PM

yeah, I’m afraid you won’t find it. if you are trying to fit a piece of plywood to a dado cut with a router, you can buy special undersized routerbits just for plywood. I know that freud sells them.

View kolwdwrkr's profile

kolwdwrkr

2821 posts in 3055 days


#3 posted 08-02-2009 05:28 PM

You would need to purchase MDF with a Birch veneer on one side. That will give you your 1/4”. Most plywood is undersized by at least 1/32”.

-- ~ Inspiring those who inspire me ~

View skidooman93's profile

skidooman93

36 posts in 2709 days


#4 posted 08-02-2009 08:47 PM

I don’t know of any plywood is actually what it is called any more. 1/4 is actually 7/32, 1/2 is actually 15/32, and 3/4 is actually 23/32. That is pretty common I have been dealing with that for years. Router bits for actual plywood sizes had been made for years as well. Don’t think you you being screwed it is just a fact of life.

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cabinetmaster

10874 posts in 3023 days


#5 posted 08-02-2009 08:56 PM

Yeppers. Everyone said it. You can’t find any actual 1/4” plywood. Everything is less than anymore.

-- Jerry--A man can never have enough tools or clamps

View a1Jim's profile

a1Jim

115202 posts in 3042 days


#6 posted 08-02-2009 09:15 PM

This gets my wife going when every we talk about 2×4s actually being 1 1/2” X 3 1/2” or all the other wood misinformation.

-- http://artisticwoodstudio.com Custom furniture

View Kent Shepherd's profile

Kent Shepherd

2718 posts in 2751 days


#7 posted 08-04-2009 09:14 PM

Welcome to the REAL WORLD—-unfortunately

You just have to learn to work around it.

-- http://shepherdtoolandsupply.com/

View jato's profile

jato

11 posts in 2779 days


#8 posted 08-04-2009 09:35 PM

The REAL WORLD. I teach wood shop and I have lots of stories about wood thickness. The kids also are confused about my improper fractions when restocking our racks…6/4 rough cut red oak in RW x RL and 4/4 S2S pine in RW x RL. Gotta love it!

-- jato, Houston Texas

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