Large toy box: fixed or floating bottom? - Woodworking Talk - Woodworkers Forum
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post #1 of 5 Old 12-11-2017, 12:09 PM Thread Starter
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Large toy box: fixed or floating bottom?

I am building a large (48" wide, 22" deep, 20" tall) toy box for my granddaughter. The sides are 5/8 Baltic Birch plywood. The bottom is to be 3/4 Baltic Birch plywood. My question is: should the bottom panel float in a dado or can it be tight in the dado and glued/dowelled?

The advantage of fixed is that the bottom will help to keep this large box from racking, but will the ply expand and cause issues?

The outer corners are flanked with vertical 1x4 cherry boards that are joined to each other with a finger miter and these corner boards will be glued and doweled to the corners of the birch ply box.

Many thanks for any advice.
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post #2 of 5 Old 12-11-2017, 04:16 PM
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You can glue and fix the bottom without issues.

If you don't have time to do it right the first time, when will you have time to do it over?
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post #3 of 5 Old 12-11-2017, 08:20 PM
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Personally I'd rather have a fixed bottom on a box. Normally that means it's more stable and even if it's not needed, it never hurts if it's more stable.

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post #4 of 5 Old 12-12-2017, 12:23 AM Thread Starter
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Agreed! I would greatly prefer the fixed bottom but was concerned wth expansion issues. Thanks for the advice.
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post #5 of 5 Old 12-13-2017, 09:02 AM
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Using plywood I would fix it in the joint. If you were using solid wood you would want it to float for expansion.

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