Strengthening sheet metal without a bead roller?

[fdcmiami]

I'm building an A frame tool box for the nose of a trailer and I want to add some beads to the bottom of the box so it holds up a little better.
I am using 11ga. material.
Is it possible to do Without a bead roller? Maybe round a piece of 1/8" or 1/4" flat stock and hammer it in?

Any idea's are appreciated!!

i'm curious what the bead roller is for. my experience with a bead roller was when we made a run of pipe, generally 16 ga or less, we would do a pipe lock on the seam, crimp the end and put a bead in about 1 1/4 inches to prevent the next piece of pipe from sliding down any further as it was being assembled. a sectional profile of the bead would be raised and semi circular.

ll ga material. .125 is pretty thk, why would you have to do anything to it? if you're worried about oil canning then tack a piece of angle legs down to it.