Because the box is curved, it sits nicely on the hip and is easily carried moderate distances; I have carried it more than 4 miles over hilly open fields, ditches, hedges, rocks and a low cliff, containing 3 live Ferrets in one section and 30+ purse nets, pegs, cords and other required bits & pieces in the other section.
The ends, top, bottom, internal panel and access door are made from the 9mm thick exterior plywood.
The curved sides (inner and outer) are made from 4mm thick plywood.
The outer curve of the box has a radius of 36 inches, and the inner curve has a radius of 24 inches. The box ends are 14 inches high X 12 inches wide.
You will also need approximately 16 feet of: planed 1 X1, or 1 inch quadrant moulding, or 1 inch Scotia moulding for the internal sub-frames ..... I used what I had to hand which were odd pieces of triangular moulding, and a pallet plank ripped down to 1 X1.
I used approximately: qty 50 of 1 inch X No6, A2 stainless countersunk wood screws, about 2 ounces of 3/4 inch copper panel pins, qty 24 off 5/8 No 4 A2 stainless steel pan-head wood screws, 18 inches of brass piano hinge, 2 brass catches, 2 large fencing staples, and Polyurethane waterproof wood glue.