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Forum topic by scvwooding posted 583 days ago 647 views 0 times favorited 1 reply Add to Favorites Watch
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15 posts in 583 days

583 days ago

Building shop cabinets that will measure 40 W x 80 H x 16 D. The cabinets will hang on the wall with French clets approximately 6 inches from the ground. i plan on using 1/2 ply wood and pocket whole joints. Do you think 1/2 inch ply will do or should I go with 3/4? I was hoping to use 1/2 for less weight, considering they will be hanging on the cleats. Let me know what you think. Thanks

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890 posts in 2246 days

#1 posted 583 days ago

I think… 40” X 80”... 1/2” plywood is too thin!

Any shelves in 1/2” will sag over a 40” span. Even 3/4” plywood over that span will likely sag without some additional support like a 1 1/2” edge on the front of the shelf and nails/glue to the back.. Was I doing this, I would use 3/4” ply on the shelves and sides, dadoes into the sides for support (I don’t think pocket screws and butt joints will cut it if you are filling the shelves with tools). A 1/2” plywood back should be fine.

Disclaimer: people tell me I overbuild things!

-- "Find out what you cannot do and then go do it!"

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