Reply by Lazyman

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Posted on Biscuits, Pocket Screws, T&G, or Other for Flat Surfaces?

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3881 posts in 1869 days

#1 posted 10-15-2018 02:55 PM

Biscuits are very easy and do help with alignment but you are right, they don’t add much strength. A plain glue joint is plenty strong anyway. IMO, the only thing a pocket screw might do is help apply a little more pressure during glue up if you don’t have enough clamps. I did used the once to join 2 relatively short pieces of laminated particle board because I didn’t think that would glue up very well. T&G or a spline will add more glue surface area and should improve alignment but you have to be more exact with cutting them. Any warpage will make that more difficult so are probably more trouble than they are worth. T&G is good for breadboard ends though.

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