Originally Posted by asleep.at.the.oars
Chip tends to do things waaaay more elegant (and light) than I do.
Naw- I'm just more obsessed.
Anyhow, C-Girl, for a 24 x 36 inch floor, you could trim 1 panel of polymax at one end or both (if you want symmetry). At the very least, I'd support it down the middle. I use aluminum bar, channel, angle, or tubing (depending on what's rattling around the shop) and have also used wood. If you don't have frame support on all the edges, then you need more stiffeners.
Asleep's right about the flex. Pretty boingy stuff.
The reason I use the plastic-clad hoseclamps is to attach the edges of the polymax firmly to the frame in several spots, which limits the flex. If you just use a few cam straps with the edges of the polymax resting on the frame and nothing to stiffen it up, the grid can flex and pop down underneath the frame, which means you have to undo all the straps to set it right.
I 'spose you could mount the floor underneath
the frameó never tried that.