plywood edges + screws

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Forum topic by HokieMojo posted 08-17-2009 12:58 AM 4976 views 0 times favorited 8 replies Add to Favorites Watch
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2104 posts in 3304 days

08-17-2009 12:58 AM

I need some advice on my current project. I need to drive some screws through the face of plywood into the edges of another piece of ply. I’m basically attaching shelves to the side of a giant cabinet, so I this to be quite strong. I’m concerned about splitting the plywood and causing delamination. Any ideas? I’m thinking if I predrill the holes nice and deep and also use long 3” screws, I should be ok. I’d love to hear from people that have done this kind of thing before. Thanks!

8 replies so far

View a1Jim's profile


115619 posts in 3153 days

#1 posted 08-17-2009 01:08 AM

View Karson's profile


35047 posts in 3976 days

#2 posted 08-17-2009 01:11 AM

I’ve usually only thought of Confirmat screws as being for mdf and particle board. It should hold also in plywood.. I know it holds great in the other materials.

-- 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 GMman's profile


3902 posts in 3273 days

#3 posted 08-17-2009 01:14 AM

View cabinetmaster's profile


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#4 posted 08-17-2009 01:30 AM

It should work ok. We use dowels and then use 1 3/8” screws and have no problem.

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

View CharlieM1958's profile


16258 posts in 3794 days

#5 posted 08-17-2009 01:57 AM

I’ve done this many times without problems. Just be sure to drill pilot holes, and be careful to line things up properly so that your screws are entering the edge of the plywood as close to dead center as possible.

-- Charlie M. "Woodworking - patience = firewood"

View Sailor's profile


543 posts in 2841 days

#6 posted 08-17-2009 04:20 AM

Sounds like you need to get the Kreg pockethole jig, I did and it’s great to work with and would be perfect for this application. It’s great tool is one of my favorite tools to work with.

-- Dothan, Alabama Check out my woodworking blog! Also my Youtube Channel's Facebook page

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Chris Wright

540 posts in 3057 days

#7 posted 08-17-2009 05:08 AM

If you drill pilot holes into the edge of the ply it should be fine.

-- "At its best, life is completely unpredictable." - Christopher Walken

View HokieMojo's profile


2104 posts in 3304 days

#8 posted 08-17-2009 05:14 AM

thanks for all the great suggestions. I left a few details out to keep the question short. If you want to see specifically what I’m trying to do, you can see here at my blog or here where a slightly different version was originally built. I think the cleats will do most of the holding but I want to make sure the shelves don’t slide off the cleats and it will be impossible to screw the shelves into the cleats because of limited room to work. thanks for all the help!

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