Put this together while the surf has been Sh**y here in NJ. The frame is all scrap 2"x4" . The base is a piece of 1/2" particle board I had laying around. ( I would recommend something stronger for the base but it will work with a support across the middle). The poles are 1 -1/4" PVC pipe( wrapped in cheap insulation from home depot) . Its 39" wide , 49.5" tall and 22" deep. I got the foam for the base at Collins-wood Flea market for 3$.
nice i did something similar but more basic. i took a scrap 2x4 like 4 ft long, counter sunk 1 inch holes and glued (front) and screwed (back) 1 inch dowels 2 ft apart, cut to about 1.5 ft long. the dowels i wrapped with 1 inch soft styrafoam pipe insulation. secured it to a stud in my garage about 4ft off the floor. for the base i just used a rubber mat similar to a yoga mat. to be safe i also have a rope going from side to side with hooks in case a board decided to try and fall out. if i could do it all again i would space the dowels out 2.5ft instead of 2ft. you can find detailed instructions on the web.