Folding wooden workbench build

A folding workbench to tuck away on the wall when not in use.\r
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This work bench is 2 shallow boxes held together and attached to the wall with 3-1/2 door hinges. The only truly important dimension is the legs have to fit inside the boxes when folded up.\r
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Cut List:\r
tops 39 x 24 (2) 1/2 plywood\r
short sides 24 x 2-1/2 (4) 1/2 plywood\r
long sides 38 x 2-1/2 (4) 3/4 pine\r
legs 35-1/2 (2) 1-1/2 x 1-1/2 pine\r
stringers 20-1/4 x 2-3/8 (2) 3/4 pine\r
side lock 17 x 2-78 (2) 3/4 birch ply, cut as shown\r
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underside spring lock 14 x 1-1/2 1/4 pine\r
wall spring lock 8 x 1-1/2 1/4 hardwood\r
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wall mount 37 x 3-1/2 3/4 pine\r
4 standard 3-1/2 door hinges\r
12 1/4x2 hex bolts w/ washers & nuts