I like this design, but I am less interested in being modular, I would only want to route grooves on the sides I expect to use, leaving the outside edges plain:
I have been trying to figure out how to make elevated kits this way, but I cannot imagine routing a groove in 5/8" cedar and having that support the bottom.
I don't own a router, I have never used one, and I certainly haven't made dovetails, but I don't think that would work, either.
However, the fence stringers are holding up at least as well as the fence boards, so wood survives well enough outside as long as it doesn't stay wet?
I keep thinking that I can slide 2x4s underneath, but how would I secure those without tools, with dowels coming underneath to a crossmember just below?
Of course, Bob made one, from composite decking, with angle aluminum for the corners and stakes.
Is there a problem with these moving?