This step by step diy project is about 12×12 storage shed with garage door plans. I have designed this shed so you can have a wide access to the interior. The opening is 8’x7′ so you can fit a garage door. The shed has a roof with a 6/12 pitch. Make sure you check the local building codes and make adjustments to comply with the local regulations. Take a look over the rest of my woodworking plans, if you want to get more building inspiration.
When buying the lumber, you should select the planks with great care, making sure they are straight and without any visible flaws (cracks, knots, twists, decay). Investing in cedar or other weather resistant lumber is a good idea, as it will pay off on the long run. Use a spirit level to plumb and align the components, before inserting the galvanized screws, otherwise the project won’t have a symmetrical look. See all my Premium Plans HERE.
Projects made from these plans
Building a 12×12 garage door shed
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- A – 4 pieces of 4×4 lumber – 144″ long SKIDS
- B – 2 pieces of 2×6 lumber – 144″ long, 10 pieces – 141″long FLOOR
- C – 3 pieces of 3/4″ plywood – 48″x96″ long, 3 pieces – 48″x48″ long FLOORING
- D – 2 pieces of 2×4 lumber – 144″ long, 1 piece – 137″ long, 12 pieces – 91 1/2″ long SIDE WALL
- E – 2 pieces of 2×4 lumber – 137″ long, 1 piece – 144″ long, 10 pieces – 91 1/2″ long BACK WALL
- F – 2 pieces of 2×4 lumber – 144″ long, 1 piece – 137″ long, 12 pieces – 91 1/2″ long, 4 pieces – 41″ long, 2 pieces – 36″ long, 4 pieces – 3 1/2″ long, 4 pieces of 2×6 lumber – 27″ long SIDE WALL / WINDOW
- G – 2 pieces of 2×4 lumber – 20 1/2″ long, 1 piece – 137″ long, 1 piece – 144″ long, 6 pieces – 91 1/2″ long, 2 pieces – 82 1/2 long, 8 pieces – 3 1/2″ long, 2 pieces of 2×6 lumber – 99″ long FRONT WALL
- H – 11 pieces of T1-11 siding – 48″x96″ long, 1 piece – 12″x48″ long EXTERIOR WALLS
- 4 pieces of 4×4 lumber – 12′
- 12 pieces of 2×6 lumber – 12′
- 5 pieces of 3/4″ plywood – 4’x8′
- 11 pieces of 2×4 lumber – 12′
- 47 pieces of 2×4 lumber – 8′
- 3 pieces of 2×6 lumber – 10′
- 12 pieces of T1-11 – 48″x96″
- 1 piece of 1/2″ plywood – 4’x8′
- 8d nails, 2 1/2″ screws, 3 1/2″ screws
- wood filler , wood glue, stain/paint
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Hammer, Tape measure, Framing square, Level
Miter saw, Drill machinery, Screwdriver, Sander
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- PART 1: 12×12 Shed Plans
- PART 2: 12×12 Shed Roof Plans
- PART 3: 12×12 Shed Trims
12×12 Shed with Garage Door Plans
The first step of the project is to build the frame of the floor for the 12×12 shed. Cut the joists from 2×6 lumber at the right dimensions. Drill pilot holes through the rim joists and insert 3 1/2″ screws into the perpendicular components. Make sure the corners are square and align the edges flush.
Select the location for the shed and level the surface thoroughly. Make sure you comply with the local building codes. Fit the 4×4 skids and the attach the floor frame on top. Use rafter ties to lock the skids to the frame.
Fit the 3/4″ plywood sheets to the floor frame of the shed. Cut the sheets and then align the edges with attention. Drill pilot holes through the sheets and insert 1 5/8″ screws, every 8″ along the framing.
Build the frame for the side wall with window. You can adjust the size of the window to suit your needs. The window will let a lot of light inside the shed. Use 2×4 lumber for the plates and studs, and 2×6 lumber and 1/2″ plywood for the double headers. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs.
Build the front wall frame from 2×4 lumber, as well. You can adjust the size of the door opening. This door openings has 8’x7′ so you can find a garage door. Use the same techniques described above to assemble the front wall.
Build the back wall for the shed, as well. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs every 16″ on center. Make sure the corners are square for a professional result.
Build the other side wall for the shed. Use 2×4 lumber for all the components.
Fit the front and the back wall frames to the shed floor. Align the edges with attention and plumb the walls with a spirit level. Make sure the corners are square and drill pilot holes through the bottom plates. Insert 3 1/2″ screws to lock the wall frames into place tightly. Fit the side walls frames, drill pilot holes through the bottom plates and insert 3 1/2″ screws to lock them into place tightly. Moreover, you need to lock the adjacent walls together tightly, by using 2 1/2″ screws.
Fit the T1-11 siding panels to the front wall frame, as well. Align the edges and use 6d nails, every 8″ along the framing. Make the cuts so you can fit the sheets around the door opening.
Fit the T1-11 siding to the side walls. For the walls with window opening, make a few cuts so you can the sheets properly.
Last but not least, attach the T1-11 siding to the back wall frame. Align the edges with attention and insert 6d nails, every 8″ along the framing. Leave no gaps between the sheets for a professional result.
I have lots of other shed projects on the site so I recommend you to browse through all alternatives before starting the building project. See all my shed projects HERE. Moreover, check out PART 2 of the shed, so you learn how to build the roof.
This woodworking project was about 12×12 shed with garage door plans free. If you want to see more outdoor plans, check out the rest of our step by step projects and follow the instructions to obtain a professional result.