All sourced from home depot:Love that! Can you reveal your material list?
1 sheet of 3/4 (I believe birch) plywood (cut down to approximately 56" / 28" ~ $55
Indoor-outdoor carpet ~ $16
6 small d-rings ~ $12
Misc bolts for D-rings ~ $8
Carpet glue ~ $5
Around $100 bucks once you throw in tax.
I anchored it to the tub using bolts I found in the leftover Jeep parts box I have. I pulled the rubber plugs on the wheel wells and anchored it down through those so I didn't need to drill new holes. It can easily hold my weight.