Sides are 19 1/8" long and either 6 5/8 or 9 5/8
Ends are 13 3/4" or 14" 8 frame, and 16 1/4" or 16" for 10 frame
The ends get a 3/4 wide by 3/8 deep rabbet on each side, and a 5/8 wide by 3/8 deep for frame rest.
You need anything else?
This is for 3/4" lumber
I used 4d galvanized nails and Titebond successfully. With some care in placement, the nails don't split the wood and the work goes fast; my boxes are holding up well. For other boxes, to avoid splitting, I've pre-bored with a tapered drill for galvanized screws, but it takes an extra step. I don't make a lot of boxes, so in the future, I'll use screws; I like screws even though they aren't that much stronger holding when placed in the end grain. The glue, joint configuration, and parallel grain surface area gives the real strength. The screws tend to pull the joints together better while the glue dries. JMHO. PaulYou will destroy the box trying to take them apart after the glue sets! Even with just staples, no glue, you will tear up the box trying to take them apart.