I want to rewire and install lighting and other equipment on Greta before next summer. So rather than shrink wrap the boat I decided to get a Quonset hut for the boat which would allow me to work without worrying about the weather. I found that it’s difficult find a Quonset hut that is large enough that is less than $1000. I wanted it to be 10 x 30 feet and be able to stand up in the cockpit. I decided to make my own Quonset Hut. I started with a 25’ x 40‘ tarp (Ultimate grey tarp from WM on sale for $90). The structure is made of ½” id PVC electrical conduit. The 21 ribs are 26’ long on 18” centers and screwed to the 5 each 30’ stringers with #10 1 1/4 “ sheet metal screws. I laid out all the conduit on the deck, drilled thru holes in the 5 stringers every 18” and smaller pilot holes in the 21 ribs at the middle and 6” and 6’6” from each end. I screwed them together from the inside so there are no screw heads on the outside to wear the tarp. Materials required is 3 x 21 conduit for the ribs and 5 x 3 for the stringers for a total of 78. The ½ “ conduit cost .92 each so the total cost was $71.76 at Lowe’s. To get the height I wanted I used 3 pieces of 3” id conduit to support the mast which was cable tied to the inside of the structure (2 each 10’ lengths at $10). So the whole project cost must have been about $200 with screws & taxes. Note that the 40’ tarp nicely wraps the ends without overlap.
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