| Re: Air tight joints in Birch plywood?
With proper application of glue the seals will be air tight and structurally sound, but use of a biscuit joint as you previously mentioned would further increase strength. Is there a specific reason you are against use of screws? They will not harm the build in anyway and allow for an expedited process. Lastly, it should be noted that quality ply is actually lighter and more dense than traditional MDF.
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