On 11/2/2013 7:37 AM, justin devico wrote:
These will be semi structural, like ply into sides of a desk(which is essentially what this project is).

I'm not sure the thickeness of the rails but the legs are like 1 5/8 thick . The rails are bigger than 3/4 for sure though. I'm afraid of cutting into my tenon on my rails.

From your descriptions thus far:

A 1/4" dadoe is quite sufficient for a plywood panel that is framed by
rails and stiles/legs.

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