I am stumped at the moment on how to get a clean, square (both across and vertically) crosscut on the ends of my bench slabs. Both are 4.25" thick, and @9' long, the small one is 11.5" wide, the big one almost 17" wide. In short, both are way to big an unwieldy to cut on either my table saw or with my band saw. I suspect it would be fairly simple if I had a radial arm saw, but I don't.

Suggestions?