a 10 x 12 storage shed weight depends on a few factors. Is the shed wood or metal? a wood shed is usually always going to be heavier. what all accessories comes with the shed? A double door weighs more than a single door. Wood shed, double door, shingle roof, about 1600 pounds. Metal shed, Double door, metal roof. about 800 pounds.
Wood sheds are heavier. If you have a metal shed and a wood shed the same size say it 8x12 wood shed weighs about 1500 pounds then a 8 x 12 metsl shed would weigh about 800 pounds.
an 8x10 shed made out of wood can weight 1,300 lb for a good one with all the bells and whistles. to 700 lb for a fairly cheap one. 8 x 10 wood shed weight=700 lbs -1300 lbs