This step by step woodworking project is about 10×12 shed with flat roof plans. This small shed is ideal for your modern backyard and it is easy to build. Just follow the step by step diagrams and instructions so you can complete the shed in one week. Read the local codes before starting the project, so you comply with the requirements. See my other DIY projects HERE.
We recommend you to invest in the best materials you could afford. Therefore, you should buy weather-resistant lumber, such as pine or cedar. Always take accurate measurements before adjusting the size of the components at the proper size. Drill pilot holes trough the components before inserting the wood screws, to prevent the wood from splitting. My plans come with a full cut / shopping list and they are PDF Download and Print friendly. See all my Premium Plans HERE.
Made from this plan
10×12 Shed with Flat Roof – Free DIY Plans
Materials
- A – 2 pieces of 2×6 lumber – 144″ long, 10 pieces – 117″ long FLOOR FRAME
- B – 3 pieces of 4×4 lumber – 144″ long SKIDS
- C – 3 pieces of 3/4″ plywood – 48″x96″ long, 3 pieces – 24″x48″ long FLOOR
- D – 2 pieces of 2×4 lumber – 113″ long, 1 piece – 120″ long, 6 pieces – 91 1/2″ long 2xSIDE WALL
- E – 2 pieces of 2×4 lumber – 144″ long, 1 piece – 137″ long, 9 pieces – 91 1/2″ long” long BACK WALL
- F – 1 piece of 2×4 lumber – 144″ long, 1 piece – 137″ long, 1 piece – 30″ long, 1 piece – 78″ long, 10 pieces – 91 1/2″ long” long, 2 pieces – 78 1/2″ long, 3 pieces – 7 1/2″ long, 2 pieces – 9 1/2″ long, 2 pieces – 32″ long, 2 pieces – 43″ long, 4 pieces – 23 1/4″ long, 2 pieces of 2×6 lumber – 39″ long FRONT WALL
- G – 6 pieces of T1-11 siding – 48″x96″ long, 3 pieces – 48″x5 1/2″ long SIDING
- 2 pieces of 2×6 lumber – 12′
- 10 pieces of 2×6 lumber – 10′
- 3 pieces of 6×6 lumber – 12′
- 4 pieces of 3/4″ plywood – 4’x8′
- 6 pieces of 2×4 lumber – 12′
- 6 pieces of 2×4 lumber – 10′
- 41 pieces of 2×4 lumber – 8′
- 1 piece of 2×6 lumber – 8′
- 1 piece of 4×6 lumber – 12′
- 7 pieces of 5/8″ T1-11 siding – 4’x8′
- 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
- 7″ screws
- 8d nails
- rafter ties
- joist hanger
- wood filler , wood glue, stain/paint
Tools
- Miter saw
- Circular saw
- Drill machinery, drill bits
- Safety gloves, glasses
- Chalk line, tape measure, spirit level, carpentry pencil
Time
- One week
10×12 Shed Plans – DIY Plans
Floor frame – 10×12 flat roof shed
The first step of the project is to build the floor frame. Cut the joists at from 2×6 lumber. Align the edges flush and make sure the corners are square. Place the joists every 16″ on center. Drill pilot holes and insert 3 1/2″ screws. Alternatively, you can use joist hangers.
Fitting the skids to the floor frame
Use 4×4 lumber for the skids. Place the skids under the floor frame. Use rafter ties to secure the skids to the floor frame.
Floor – 10×12 shed plans
Use 3/4″ tongue and groove plywood sheets. Cut the sheets at the dimensions shown in the diagram and in the cut list. Leave no gaps between the sheets and align the edges flush. Drill pilot holes and insert 1 5/8″ screws every 8″ along the framing, to secure the sheets into place.
Side wall frames – 10×12 shed
Use 2×4 lumber for the wall frames. Cut the components at the right dimensions, as shown in the diagram. Drill pilot holes through the plates and insert 3 1/2″ screws to assemble the wall frame. Make sure the corners are square and align the edges flush.
Front wall frame – 10×12 shed with a flat roof
Next, assemble the front wall frame. Use 2×4 lumber for the components. Use 2×6 lumber for the double door header. You can adjust the size of the door and of the window to suit your needs.
Back wall frame – 10×12 shed
Build the back wall using the same techniques described above.
Assembling the frame of a 10×12 shed
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 and insert 3 1/2″ screws through the bottom plates into the floor frame. Check if the corners are square and lock the adjacent wall together tightly with 3 1/2″ screws.
Fitting the top beam
Fit a 4×6 beam to the front of the 10×12 storage shed. this beam will create a slight slope for the flat roof. Use 7″ screws to secure the beam to the front wall frame.
Front wall siding sheets – 10×12 shed
Use 5/8″ T1-11 siding sheets for the front wall. Attach the siding sheets to the front wall and align the edges flush. Insert 8d nails along the wall frames, every 8″. Use a saw to cut out the openings for the door and window.
Back wall siding sheets – 10×12 flat roof shed
Attach the siding sheets to the back of shed, as well.
10×12 Shed with a Flat Roof Plans
This storage shed with a flat roof is easy to build and it is the perfect choice if you aim for a simple and modern design. Remember that this shed is suited for areas with no snow.
10×12 Shed with a Flat Roof Plans – back view
10×12 Shed with a Flat Roof Plans – side view
This shed is ideal if you need storage space but you have a narrow backyard. Make sure you take a look over PART 2 of the project, so you learn how to build the frame and how to build the front door.
If you want to download the plans. just click on the GET PDF PLANS button bellow.
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