How to put up a 10x12 metal shed

Written by bob haring
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Putting up metal sheds is rather like building objects with an erector set -- you fasten pieces together to make the structure. Metal sheds come with pieces cut to fit, so building one consists of putting the elements together and fastening them; some metal sheds use screws or bolts, others use plastic connectors. A shed should come with complete assembly instructions. Get some help -- it is at least a 2-person job. Metal panels are unwieldy and will need support as they are assembled.

Skill level:

Things you need

  • Wood stakes
  • Builder's twine
  • Measuring tape
  • Shovel
  • 2-by-4 framing lumber
  • Gravel
  • Hand tamper
  • Concrete
  • Concrete trowel
  • Level
  • Carpenter's square
  • Screw gun
  • Wrenches

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  1. 1

    Build a solid base for the shed, preferably concrete. Use stakes and builder's twine to mark an area 12 feet by 14 feet as a foundation for the 10-foot-by-12-foot metal building. Excavate the area 6 inches deep. Use 2-by-4 boards to frame that space. Put down 2 inches of crushed gravel and compact it. Pour concrete level with the tops of the frame and smooth with a trowel. You can mix concrete in a wheelbarrow or rent a small mixer. Check the instructions on how to secure the shed to the concrete. If it requires bolts, insert them before you pour concrete.

  2. 2

    Lay out the components for the metal shed on a lawn or driveway. Make sure all elements are there. Test fit metal framing pieces. Assemble the floor frame first and place it on the concrete slab. It should assemble with plastic corner pieces. Fasten it with anchor bolts or special concrete screws or however the manufacturer recommends. Then assemble wall panels. Raise the walls on the floor frame, make sure all corners are square and sides are plumb, then secure the framework with screws or bolts provided with the building.

  3. 3

    Attach gable roof frames to the tops of the walls and install any mid-wall braces or supports. Erect wall panels; some styles screw or bolt in place, some are fastened by sliding panels into channels on the frame. Assemble roof panels and attach them to the frame with screws. Put on roof corners or caps that came with the building.

  4. 4

    Slide the doors in place on hinge pins on the door sides of the front panel, then install the handles and lock that came with the building.

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