10×12 Lean to Shed Plans – PDF Download

This step by step diy project is about diy 10×12 lean to storage shed plans. This large backyard shed comes with a base of 10 ft x 12 ft and a lean to roof, with a 2:12 pitch. In addition, this shed has double doors to the front wall, and a side window. Read the local codes and make adjustments to comply with your local requirements. 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. 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

10×12 Lean to Storage Shed Plans – PDF Download

Building-a-10×12-lean-to-shed

Cut List

A – 3 pieces of 4×4 lumber – 12 ft long SKIDS
B – 2 pieces of 2×6 lumber – 12 ft long, 10 pieces – 117″long JOISTS
C – 2 pieces of 3/4″ plywood – 48″x96″ long, 2 pieces – 48″x48″ long, 1 piece – 24″x96″ long, 1 piece – 24″x48″ long FLOOR
D – 2 pieces of 2×4 lumber – 113″ long, 1 piece – 10 ft, 8 pieces – 91 1/2″ long, 4 pieces – 18″ long, 2 pieces – 36″ long, 4 pieces – 26 1/2″ long, 4 pieces of 2×6 lumber – 39″ long SIDE WALL / WINDOW
E – 1 piece of 2×4 lumber – 10 ft long, 2 pieces – 113″ long, 9 pieces – 91 1/2″ long PLAIN SIDE WALL
F – 2 pieces of 2×4 lumber – 12 ft long, 1 piece – 137″ long, 12 pieces – 91 1/2″ long BACK WALL
F – 2 pieces of 2×4 lumber – 12 ft long, 12 pieces – 16 1/4″ long TOP WALL
G – 2 pieces of 2×4 lumber – 36″ long, 1 piece – 137″ long, 1 piece – 144″ long, 10 pieces – 91 1/2″ long, 2 pieces – 78 1/2″ long, 6 pieces – 7 1/2″ long, 2 pieces of 2×6 lumber – 75″ long FRONT WALL
H – 3 pieces of 5/8″ T1-11 siding – 4’x115 1/2″ long, 2 pieces – 4’x8′ long, 1 piece – 4’x16″ long SIDING

Shopping List

UNLOCK PREMIUM PLANS

Tools

Hammer, Tape measure, Framing square, Level

Miter saw, Drill machinery, Screwdriver, Sander

Safety Gloves, Safety Glasses

Time

One week

PART 1: 10×12 Lean to Shed Plans
PART 2: 10×12 Lean to Shed Roof Plans

How to Build a Lean to Shed 10×12

Building-a-shed-floor—10×12 – MyOutdoorPlans

First of all, we need to build the floor for the shed from lumber. Cut the joists from 2×6 lumber using a good saw. Align the beams, making sure the corners are square, drill pilot holes and insert 3 1/2″ screws to lock them together tightly.

Measure the diagonals and make adjustments until they are perfectly equal. Place the joists every 16″ on center.

Fitting the skids

After assembling the floor frame, you need to attach the 4×4 skids. Use metal connectors to secure the skids to the joists, after aligning them or toenail them. Use 2 rafter ties and 1 1/2″ structural screws for each skid, one at a time.

Fitting the floor sheets

Continue the project by attaching the 3/4″ plywood sheets to the floor frame. Leave no gaps between the floor sheets and secure them into place with 1 5/8″ screws, every 12″ along the joists.

Building the shed wall frames

Back-wall-frame – MyOutdoorPlans

Next, we will start assembling the back wall frame for the shed. Therefore, cut all the components at the dimensions shown in the diagram, using 2×4 boards. Drill pilot holes through the top plates and insert 3 1/2″ screws into the studs. Align the edges flush and place the studs every 16″ on center. In addition, attach a double plate to the top of the wall frame.

However, you should notice the double studs placed at both ends of the wall frame. Fit pieces of 1/2″ plywood between the double studs.

Side-wall-frame

Continue the project by assembling the plain side wall. As you can notice in the diagram, you need to place the studs every 16″ on center.

Side-wall-with-window

Next, assemble the other side wall frame. Use the same techniques described above to assemble the wall frame. Notice the double headers for the window opening. Use 2×6 lumber and 1/2″ plywood for the header. Add glue to the joints and insert 2 1/2″ screws from both sides, to assemble the header.

You can adjust the size of the 36″x36″ opening to suit your needs.

Front-wall-frame

Last but not least, you need to assemble the front wall frame. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs every 16″ on center.

Assembling the shed framing

Assembling the shed frame

Fit the side walls to the shed floor and lock them to the adjacent walls with 3 1/2″ screws. Make sure the corners are square and insert 3 1/2″ screws through the bottom plates into the floor, as well.

Top-wall-frame

Next, we need to frame the top wall that will create the lean to shape for this shed. This wall is designed in such a way that it will give this shed a 2:12 pitch. You can adjust the height of the studs and thus influence the pitch of the roof. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs every 16″ on center. Notice the double studs at both ends, with 1/2″ plywood pieces between them.

Fitting the top wall frame

Fit the top wall frame to the front or back walls of the storage shed. Plumb the wall with a spirit level, drill pilot holes and insert 3 1/2″ screws.

Front wall siding sheets

Use 5/8″ T1-11 siding sheets for the exterior of the storage shed. Cut the panels and align them into place. Insert 6d nails, every 8″ along the framing, to secure the panels into place. After securing the panels into place, make the cut outs around the double doors with a circular saw.

Back wall siding sheets

Attach the siding sheets to the back of the garden shed, as well. Secure them into place with 6d nails.

Finishing touches

10×12 Lean to shed MOP

Make sure you check PART 2 of the project, so you learn how to build the roof for this large lean to shed project. In addition, you could check the rest of the shed plans I have on this site for more building ideas.

10×12 Lean to shed – overall dimensions

Last but not least, you should take care of the finishing touches. Therefore, fill the holes with wood putty and let the compound to dry out for several hours. Smooth the surface with medium-grit sandpaper along the wood grain.

Expect to spend about 3 to 5 weekends constructing your 10×12 lean-to shed with double doors and a side window. The straightforward lean-to design makes for a relatively quick build, with the addition of doors and a window adding just a bit more time for framing and installation. With steady progress, you’ll soon have a well-built shed that’s ready to meet all your storage needs.

10×12 lean to shed – free plans

Building a 10×12 lean-to shed with double doors and a side window will likely cost you between $2,000 and $4,000, depending on your choice of materials and finishes. The lean-to design is cost-effective, but adding double doors and a window for natural light and ventilation enhances both the functionality and appearance of the shed. This investment provides a practical and aesthetically pleasing storage solution that blends seamlessly with your outdoor space.

How to build a 10×12 lean to shed

Top Tip: Take a look over PART 2 of the project, so you learn how to build the roof and the front double doors for this shed project. If you want to get this project as a PDF file with 1 full cut list and 1 shopping list, please take a look over the GET PDF PLANS button bellow. If you want to get this project as a PDF file with 1 cut list and 1 shopping list, please take a look over the GET PDF PLANS button bellow.

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