My work stand is a little different. I originally built it for racing sail boats (which I no longer do) but it works for just about all my boats. It is the right height so working on the boat is easy. It can be used at home, outside, and folds flat for transportation and will support up to 100 pounds.
Materials are easy to find. I used 1 X 2 clear lumber, webbing from tie-down straps, and ¼-20 bolts, flat washers, and wing nuts. It is glued with carpenter’s wood glue (waterproof after drying), some wood screws, and finished with spar varnish.
The legs are 36-5/8” long and the width of the outer set in 18” with the inner pair fitting between the outer pair. The webbing is about 18” long across the top plus allowance for going down the out side of the top cross piece (about 20-1/2” total length). The axis bolt is located 23-1/8” from the bottom of the legs to give it a slightly wider spread for some stability. Use a soldering iron or hot nail to melt/pierce the webbing and use two screws per each end.
When you set it up with the webbing taunt, and then sit the boat on the webbing, the weight of the boat will push down so a rounded bilge boat will sit even. Just a little caution: This is not as stable as a table so be careful if people will be around it or if the wind is heavy.