If you reside in an area susceptible to snow accumulation, this roof strengthening kit will allow your Arrow storage shed to meet certain building code requirements. The hot-dipped galvanized steel beams fit Arrow sheds 10 ft. x 6 ft. to 10 ft. x 10 ft., increasing the strength of the roof by 50%. Ideally, this support system should be installed when the structure is first erected, but it can also be added to an existing shed. Color: Grays.