I'd contact Colin Kendrick at American Grating, LLC, 702-567-0303, sales@amgrating.com
They make a Molded Grating, General Purpose Resin, 2" deep, 2" square mesh, Yellow, Green or Light grey, Grit surface, 4' x 12' panel size = $520.00
I was looking for a couple of 6'X2' ramps that could hold...