8×12 Shed Plans

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This step by step diy project is about 8×12 shed plans. I have designed this garden shed, so you can store all your garden tools including that lawn mower. The large double doors placed at the front of the shed and the side windows, make it perfect for almost any backyard. Take a look over the rest of my woodworking plans, if you want to get more building inspiration. Remember that you need to select the site for the shed with attention and that you have to comply with a few legal regulations.

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. If you have all the materials and tools required for the project, you could get the job done in about a day.



Projects made from these plans




8×12 Shed Plans

Building a 8x12 shed

Building a 8×12 shed


  • A – 3 pieces of 4×4 lumber – 144″ long SKIDS
  • B – 2 pieces of 2×6 lumber – 144″ long, 10 pieces – 93″ long FRAME
  • C – 3 pieces of 3/4″ plywood – 48″x96″ long FLOOR
  • D – 2 pieces of 2×4 lumber – 8 1/2″ long, 1 piece – 89″ long, 1 piece – 96″ long, 6 pieces – 78 1/2″ long FRONT WALL
  • E – 2 pieces of 2×4 lumber – 89″ long, 1 piece – 96″ long, 5 pieces – 78 1/2″ long BACK WALL
  • F – 2 pieces of 2×4 lumber – 144″ long, 1 piece – 137″ long, 10 pieces – 78 1/2″ long, 2 pieces – 36″ long, 3 pieces – 31 1/2″ long, 4 pieces of 2×6 lumber – 39″ long 2xSIDE WALL
  • G – 4 pieces of T1-11 siding – 48″x81 1/2″ long, 6 pieces – 48″x83″ long SIDING

 One day



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How to build a 8×12 shed

Floor frame

Floor frame

The first step of the project is to build the floor frame. Cut all the joists from 2×6 lumber and then lay them on a level surface. Make sure you place the joists every 16″ on center, for a professional result. Drill pilot holes through the rim joists and insert 3 1/2″ screws into the perpendicular joists. Make sure the corners are square for a professional result.

Fitting the skids

Fitting the skids

Select the location for the shed and then level it properly. Compact a layer of gravel to the location and the lay the 4×4 skids. Fit the floor frame to the skids and then use rafter ties to connect them tightly.

Fitting the floor

Fitting the floor

Lay the 3/4″ plywood sheets to the floor frame and align the edges flush. Drill pilot holes every 8″ along the framing and insert 1 5/8″ screws. Leave no gaps between the sheets for a professional result.

Side wall - Frame

Side wall – Frame

Build the side wall frames for the 8×12 shed using 2×4 lumber. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. As you can easily notice in the diagram, you need to place double studs to both ends of the walls. Make sure the corners are square and align the edges flush.

Moreover, you need to frame 3’x3′ to the side walls. You can adjust the size of the wall frames to suit your needs.

Front wall - Frame

Front wall – Frame

Build the front wall for the shed from 2×4 lumber, as well. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Fit the double plate to the top of the wall and secure it into place with 2 1/2″ screws. You can adjust the size of the door opening to suit your needs.

Back wall - Frame

Back wall – Frame

Build the back wall from 2×4 lumber, using the same techniques described above. Place the studs every 24″ on center and then make sure the corners are square.

Assembling the shed frame

Assembling the shed frame

Fit the wall frames to the floor of the shed. Align the edges flush and plumb them vertically with a spirit level. Drill pilot holes through the bottom plates and insert 3 1/2″ screws into the floor.

Side wall - Siding

Side wall – Siding

Fit the T1-11 siding sheets to the sides of the shed. Align the edges flush and lock them into place tightly with 6-8d nails. Insert the nails every 8″ along the framing and leave no gaps between the sheets. Cut out the window opening and smooth the edges with sandpaper.

Front wall - Siding

Front wall – Siding

Fit the panels to the front wall, as well. Make cuts to the sheets so you can fit them around the double door opening. Use 6-8d nails to secure the sheets to the framing. As you can notice in the diagram, you need to inset the sheets 1 1/2″ screws from the top plate.

Back wall - Siding

Back wall – Siding

Fit the sheets to the back of the shed, making sure you inset them 1 1/2″ from the top plate.

8x12 Shed Plans

8×12 Shed Plans

Make sure you check out PART 2 of the project, where I show you how to build the roof for the shed. Take a look over PART 3 of the project, where I show you how to build the double door and how to fit the trims.

8x12 Shed Plans Free

8×12 Shed Plans Free

This 8×12 shed with a gable roof is a good choice if you want to combine the storage space wit the easy accessibility and with the looks. This shed can add a lot of value to the property with a small investment. The return is awesome, especially if you build it by yourself!



This woodworking project was about 8×12 shed 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.




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  1. Debbie at - Reply

    I do I download the free plans for the 8X12 shed plans with the roof and door plans? I have tried but it only wants to download the converter to PDF. Can you email the plans to me? Thank you!

  2. Chad at - Reply

    Can you do these plans with a door and a window on the 12′ side?

  3. jack at - Reply

    what is the average cost

    • Ovidiu at - Reply

      Each part of this project has a materials list. You can use that to add up all the costs, according to your local prices, to make an estimate. In addition, it all depends on the quality of the materials you are going to use.

  4. Jeff at - Reply

    On the material list,2×4 lumber – 8′ is listed twice. Is this a mistake? Should one set be treated lumber? Any clarification would be great!

    6 pieces of 2×4 lumber – 8′
    37 pieces of 2×4 lumber – 8′

  5. Steven at - Reply

    I was just wondering. I live up just north of Montreal, Quebec in Canada. Is the roof pitch sufficient for snow loads? Do I need to worry about how much depth of gravel to place under the skids with regards to freeze-thaw of the soil.

  6. Ben at - Reply

    Im looking over these plans and I cant get the numbers to add up on the side walls… Am I missing something? If you add up all the numbers and include the 2×4’s i only get 143″… It should be 144″.

    What am I doing wrong?

    • Ovidiu at - Reply

      Yes, you are missing the 1/2″ gaps between the double studs at both ends of the frame.