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Gambrel storage shed floor details

building a storage shed foundation

Material for 8x8 gambrel storage shed floor

  • 7 -2x4- 93 inches pressure-treated for the floor joist.

  • 2- 2x4 - 8 feet pressure-treated for the bands.

  • 2- 4x4- 8 feet pressure-treated for the skids.

  • 2- 5/8" plywood 4x8 for the floor decking.


Measure 7 2x4 to 93 inches, for the floor joist. 2 2x4 to 8 feet, for the floor band, and 2 4x4 to 8 feet for the skids.

storage shed joist and band

Position the 7, 2x4 by 93 inche joist, approximately 16 inches apart. Nail through the bands, and in to the end of the joist.

storage shed 4x4 skids

Toenail the joist into the skids. Level the floor frame. Lift the floor frame where it is low and add a piece of treated 2x4 or whatever is necessary to get the floor leveled.

square storage shed floor

Measure diagonally across the floor frame to square it. Shift the frame until both of the sides measure the same both ways. Once both sides measure the same both ways, your floor frame is square.

storage shed plywood decking

Lay the 5/8" inch 4x8 plywood on top of the floor frame and nail it.








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