How to Build a Garden Shed

A garden shed can serve as a place to store tools and equipment, protecting your items from weather damage. A shed's walls and roof can be built from cedar wood, which naturally resists rot. Wooden sheds can usually rest on a foundation of concrete blocks for support. Try following these steps to build a garden shed.


  1. 1
    Choose and measure your garden shed's location. It should ideally be on level ground.
  2. 2
    Use solid concrete blocks that are 4 inches (10 cm) and 2 inches (5 cm) thick to build a foundation for your wooden shed.
    • Dig a shallow hole for your first block's location. Use a hand tamper to make the soil level and compact. Add 2 or 3 inches (5 or 7.5 cm) of gravel to the hole.
    • Set a 4-inch-thick (10 cm) concrete block into the hole. The gravel will help prevent any rainwater that could run under the shed from washing away loose soil.
    • Continue placing 4-inch (10 cm) concrete blocks in this manner in evenly spaced, straight rows. The number of blocks you need and their spacing depends on your shed's dimensions.
    • Stack 2-inch-thick (5 cm) blocks on top of the initial concrete blocks to level the foundation as necessary.
  3. 3
    Get 2 by 4 (5 by 10 cm) wood pieces. The number and length of pieces you will need depends on your shed's dimensions. The 2 by 4-inch (5 by 10 cm) measurements refer to each board's width and depth.
  4. 4
    Build 3 identical frames using some of the 2 by 4s (5 by 10 cm). Each frame should have a slanted top and a center board as a crosspiece. Assemble the frames with 3-inch (7.5 cm) deck screws.
  5. 5
    Arrange the 3 frames in a row. They should stand vertical and be spaced next to each other like a series of partitions.
  6. 6
    Nail additional 2 by 4 (5 by 10 cm) boards across the top and bottom of the frames to connect them. Nail the boards along the fronts and backs of the frames.
  7. 7
    Nail 1 by 2 (2.5 by 5 cm) boards around the front of the wooden shed's door area. The doors will be placed under the lower side of the shed's slanted roof.
  8. 8
    Drill holes and screw a 2 by 6 (5 by 15 cm) header board across the front of the shed.
  9. 9
    Measure and use a jigsaw to cut the shed's floor from a large piece of plywood. Add an extra 3/4 of an inch (1.9 cm) to your floor measurements to let the plywood line up against the 1 by 2 (2.5 by 5 cm) boards.
  10. 10
    Fit the plywood around the frame by notching it. Screw the plywood into place.
  11. 11
    Place wood crosspieces in the shed's middle and right frames. Screw them into position. The crosspieces will support shelving in the shed.
  12. 12
    Measure and cut shelves from the remaining plywood. Secure the shelves inside the shed with screws.
  13. 13
    Get enough cedar wood boards to cover the shed's exterior. Use boards with tongues and grooves in them to lock them into place more easily.
  14. 14
    Nail the cedar wood boards around the frame and fit them together to form the shed's exterior. Use 1 5/8-inch ring-shank siding nails. Apply constructive adhesive to better secure the cedar planks to the framing if necessary.
  15. 15
    Use a circular saw to cut the tops of the cedar boards to be even with the frame's height.
  16. 16
    Make a roof for the shed. Nail more tongue-and-groove cedar boards to the angled top of the frame. Let the cedar roof hang down the sides and front of the shed.
  17. 17
    Cut cedar boards for the shed doors. The height of the doors should reach the bottom edge of the 2 by 6 (5 by 15 cm) header board.
  18. 18
    Hold the doors' boards together with 1 by 3 (2.5 by 7.5 cm) strips of wood screwed into the backs of the shed doors.
  19. 19
    Put a 1 by 3 (2.5 by 7.5 cm) frame around the front of each cedar door. Use strong hinges to attach the doors to the shed.


  • Try finding solid concrete blocks at a masonry supply center if you cannot find them at a lumberyard.
  • The measurements given for the other boards (2 by 6, 1 by 2, 1 by 3, etc.) refer to their width and depth in inches. The length of the boards can vary.
  • Use pressure-treated wood to build the shed. Besides cedar, pine wood can also be used for a garden shed's exterior.
  • Pressure-treated wooden skids can also be used to build a different type of foundation. Your wooden shed's foundation depends on your local building regulations, how big your shed is, its floor type and your region's weather.
  • To build a shed more quickly, you can buy a pre-constructed kit and assemble it.

Things You'll Need

  • Measuring tape
  • Lumberyard
  • Solid concrete blocks
  • Shovel
  • Hand tamper
  • Gravel
  • Framing boards
  • Electric drill/driver
  • 3-inch (7.5 cm) deck screws
  • Hammer
  • Nails for initial framework
  • Plywood
  • jigsaw
  • Cedar planks with tongues and grooves
  • Ring-shank siding nails
  • Construction adhesive
  • Circular saw
  • Screws for door framing
  • Heavy-duty door hinges

Article Info

Categories: Build Design & Remodel Own Home