re: Timber Framed Sawhorses

Solid build!

I think the top tenon gap there is better than too tight. I intentionally cut there a little bit smaller usually so it won't cause the mortise side to split(I know it's just wood checking). For the other orientation of the tenon, I like to do Kigoroshi to compress the fiber and make it super tight or put a wedge but you did a nice drawbore:) Good looking, too.

Looking forward to seeing your kayak project!