12×12 Gambrel Shed Plans – Free DIY Download

This step by step diy project is about diy 12×12 gambrel shed plans. This is a compact barn shed that you can build in less than one week, if you get some help from a friend. I personally like this shed very much, because you can choose between the double front doors and the smaller side door, to access the interior. In addition, it features a side window to let some light inside. Make sure you read the local building codes and make the needed adjustments to comply with the legal requirements. Take a look over the rest of my woodworking plans, if you want to get more building inspiration.

Remember that all my woodworking plans come with 3D diagrams, step by step instructions and a full Cut / Shopping list.

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. See all my Premium Plans HERE.

Projects made from these plans

12×12 Gambrel Shed Plans – Free DIY Download

Building-a-12×12-gambrel-shed

Cut + Shopping List

• 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 – 1 piece of 2×4 lumber – 144″ long, 1 piece – 1137″ long, 2 pieces – 56″ long, 11 pieces – 90″ long, 3 pieces – 17 1/2″ long, 2 pieces – 30″ long, 3 pieces – 35 1/2″ long, 4 pieces – 27″ long, 2 pieces – 84 1/2″ long, 2 pieces of 2×6 lumber – 35″ long SIDE WALL
• E – 2 pieces of 2×4 lumber – 144″ long, 1 piece – 137″ long, 12 pieces – 90″ long SIDE WALL
• F – 2 pieces of 2×4 lumber – 137″ long, 1 piece – 144″ long, 10 pieces – 90″ long BACK WALL
• G – 1 piece of 2×4 lumber – 144″ long, 1 piece – 137″ long, 6 pieces – 90″ long, 2 pieces – 84 1/2″ long, 2 pieces – 20 1/2″ long FRONT WALL
• H – 11 pieces of T1-11 – 48″x96″ long, 1 piece – 7″x48″ long SIDING

• 4 pieces of 4×4 lumber – 12′
• 2 pieces of 2×6 lumber – 12′
• 10 pieces of 2×6 lumber – 12′
• 5 pieces of 3/4″ plywood – 4’x8′
• 10 pieces of 2×4 lumber – 12′
• 2 pieces of 2×6 lumber – 10′
• 1 piece of 2×6 lumber – 8′
• 48 pieces of 2×4 lumber – 8′
• 1 piece of 1/2″ plywood – 4’x8′
• 12 pieces of T1-11 – 48″x96″
• skid ties
• 8d nails, 2 1/2″ screws, 3 1/2″ screws
• wood filler , wood glue, stain/paint

Tools

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

Time

One week

Related

• PART 1: 12×12 Barn Shed Plans
• PART 2: 12×12 Barn Shed Roof Plans
• 10×12 gambrel shed plans
• 14×14 gambrel shed plans

It’s that easy to build your own 12×12 barn shed!

Step 1: How to build a 12×12 barn shed floor

Floor-frame-12×12-shed-floor

The first step of the project is to build the floor frame for the 12×12 barn shed. Cut the joists for the shed using 2×6 lumber. Align the edges flush on the selected location for the shed. Align the edges flush, drill pilot holes and insert 3 1/2″ screws to lock the joists into place. Place the joists every 16″ on center for a professional result.

Fitting the skids

Select the location for the shed and remove the vegetation level. Lay gravel to the surface and then lay the 4×4 skids, below the floor frame. Use rafter ties to secure the skids to the frame. Align the edges with attention.

Floor sheets – 12×12 shed plans

Use 3/4″ plywood sheets to the floor frame. Align the edges with attention, drill pilot holes and insert 15/8″ screws, every 8″ along the joists. Leave no gaps between the sheets for a professional result.

Step 2: Building the shed wall frames

Front-wall-frame—12×12-barn-shed

Continue the project by assembling the front wall frame for the shed. Cut the components from 2×4 lumber. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. In addition, you need to build the double header from 2×6 lumber. Fit 1/2″ plywood between the double headers. Lock them together with glue and 2 1/2″ screws. Make sure the corners are square and align the edges. You can adjust the size of the door opening to suit your needs.

Back-wall-frame

Continue the project by assembling the back wall for the shed. Cut all the components at the right dimensions. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Place the studs every 16″ on center, for a professional result.

Plain-side-wall-12×12-shed

Build the plain side wall for the shed using the same technique described above. Place the studs every 16″ on center and align the edges flush.

Plywood blockings

Place 1/2″ plywood blockings between the double end studs.

Side-wall-with-door-frame

Build the opposite side wall, as shown in the diagram. I recommend you to frame a side door and two small window. These small additions will let enough light inside the shed and an easy access, if you don’t handle large objects.

Assembling the shed frame – 12×12 barn

Fit the wall frames to the floor of the shed. Align the edges flush and plumb them with a spirit level. Drill pilot holes through the bottom plates and insert 3 1/2″ screws into the floor of the shed. Make sure the corners are square and lock the adjacent wall together with 3 1/2″ screws. Drill pilot holes before inserting the screws to prevent the wood from splitting.

Step 3: Fitting the siding sheets

Side wall siding sheets

Fit the T1-11 siding sheets to the side wall of the barn shed. Align the edges flush and insert 6d nails to lock the sheets into place tightly. Leave no gaps between the sheets for a professional result.

Side wall with door siding sheets

Fit the T1-11 siding sheets to the opposite side wall. Use a saw to make the cuts, so you can fit the panels around the window and door openings. Use 6d nails every 8″ along the framing to secure the sheets into place.

Front siding sheets

Fit the T1-11 siding sheets to the front of the wall. Cut the sheets using the information from the diagram, so you can lock them into place around the door opening. Use 6d nails to secure the panels into place, every 8″ along the framing.

Back wall siding sheets

Fit the T1-11 siding sheets to the back of the 10×12 barn shed. Inset the sheets 1 1/2″ from the top plates. Leave no gaps between the sheets and secure them into place with 6-8d nails, every 8″ along the framing.

12×12 Gambrel Shed – Free DIY Plans

This is a family friendly shed, as it is extremely versatile. You can use it for storing furniture, toys and other items, or you can use it as a small hobby workshop.

12×12 Gambrel Shed – Back view

Make sure you take a look over the rest of my woodworking plans here. In addition, I have free plans for a larger version of this shed. See the 12×16 barn shed plans HERE. See plans for a 10×12 gambrel shed HERE.

How to build a 12×12 barn shed

Make sure you check out the rest of the project, so you learn how to frame the roof and how to attach the door and the trims to the barn shed. In addition, I have lots of other shed projects on the site so I recommend you to browse through all alternatives before starting the building project.

12×12 Gambrel Shed – dimensions

Building a 12×12 gambrel shed with double front doors, a side door, and a side window will likely cost you between $2,500 and $4,500, depending on the materials and finishes you select. The gambrel roof not only provides that classic barn-style look but also maximizes your overhead storage space, making the shed both functional and visually appealing.

This investment creates a versatile, spacious shed that’s perfect for a variety of storage needs, all while adding a touch of rustic charm to your property.

12×12 gambrel shed – free plans

You can expect to spend about 2 to 4 weekends constructing your 12×12 gambrel shed with double front doors, a side door, and a side window. The gambrel roof and additional doors and windows add some complexity to the build, but with careful planning and steady work, the project is very manageable. By the time you’re done, you’ll have a well-built, multi-functional shed that enhances both the utility and aesthetics of your space.

12×12 barn shed plans

The gambrel roof gives it a timeless appeal, while the multiple doors and window make it incredibly practical and user-friendly. This shed is a valuable addition to your property, combining classic design with modern functionality, and is ready to serve your storage or workspace needs for years to come.

If you want to get PREMIUM PLANS for this project, in a PDF format, please press GET PDF PLANS button bellow. Thank you for the support.

This woodworking project was about 12×12 barn 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.

- EXPLORE MORE IDEAS FOR -