boat-wrap for Winter ?
 

Check out 1-3/8" Fencing Pipe canopies from this place (or others). You
buy the fittings from them (or others) via the web, and buy all the
galvanized fence pipe locally at Home Depot, Lowes, etc. I have two of
the high pitch (snow) canpoies. One is 30 by 15 (for my Marinette 28
Sedan Cruiser (the bow sticks out a bit), and anoter 15x10 for our hot
tub. I've had both up for over 2 years year round.

http://www.canopymasters.com/index.html