12×12 Shed Plans

This step by step diy woodworking project is about free 12×12 shed plans. This article features detailed instructions for building a 12×12 shed with a gable roof. This article features instructions about building the frame for a 12×12 shed. This is PART 1 of the project, so make sure you also take a look over the rest of the project, to learn how to frame the roof and the door.

The free woodworking plans come with step by step 3D diagrams, instructions, a full cut and shopping list and it is print friendly. As well, the plans are PDF download, so you can take the printed plans with you in the workshop.

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

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12×12 Shed Plans – Free DIY Plans

Building-a-12x12-shed

Building-a-12×12-shed

 

Cut + Shopping Lists

  • A – 4 pieces of 4×4 lumber – 144″ long SKIDS
  • B – 2 pieces of 2×6 lumber – 144″ long, 4 pieces – 141″ long, 7 pieces – 138″ long JOISTS
  • C – 3 pieces of 3/4″ plywood – 48″x96″ long, 3 pieces – 48″x48″ long FLOOR
  • D – 2 pieces of 2×4 lumber – 144″ long, 1 piece – 137″ long, 9 pieces – 81″ long 2xSIDE WALL
  • D – 1 piece – 144″ long, 1 piece – 137″ long, 2 pieces – 46 3/4″ long, 2 pieces – 75 1/2″ long, 6 pieces – 81″ long, 2 pieces of 2×6 lumber – 46 1/2″ long FRONT WALL
  • D – 2 pieces of 2×4 lumber – 137″ long, 1 piece – 144″ long, 7 pieces – 81″ long BACK WALL
  • E – 12 pieces of 5/8″ T1-11 siding – 48″x90″ long SIDING

  • 34 piece of 2×4 lumber – 8′
  • 12 pieces of 2×4 lumber – 12′
  • 13 pieces of 2×6 lumber – 12′
  • 1 piece of 2×6 lumber – 8′
  • 4 pieces of 4×4 lumber – 12”
  • 5 pieces of 3/4″ plywood – 4’x8′
  • 12 pieces of 5/8″ T1-11 siding – 4’x8′
  • 500 pieces of 1 5/8″ screws
  • 200 pieces of 3 1/2″ screws
  • 500 pieces of 2 1/2″ screws
  • 2″ brad nails
  • wood glue, stain/paint
  • wood filler

Tools

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

Time

One week

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Step 1: Building a 12×12 shed floor frame

Shed floor frame

Shed floor frame

The first step of the project is to assemble the floor for the 12×12 shed. Cut the components from 2×6 lumber. Align the components, drill pilot holes and lock them together with 3 1/2″ screws. Make sure the corners are square for a professional result.

Joists

Joists

The next step of the shed project is to fit the interior rim joists. Use 2 1/2″ screws to secure the joists to the frame, leaving no gaps between the components.

Fitting-the-intermediary-joists

Fitting-the-intermediary-joists

Next, you need to attach the intermediary joists to the floor frame. Use joist hangers to lock the beams to the frame. Make sure you also insert 2 1/2″ screws through the perimeter beams into the joists.

Fitting the skids

Fitting the skids

In order to protect the floor of the shed from moisture, we recommend you to attach 4×4 skids under the floor. Align the skids to the floor as shown in the diagram, drill pilot holes and insert 3 1/2″ screws into the joists.

Fitting the floor panels

Fitting the floor panels

Attach the 3/4″ plywood sheets to the floor, as shown in the diagram. Use 1 5/8″ screws to lock the panels to the frame, every 8″ along the joists.

 

Step 2: Building the shed wall frames

Front-wall-frame

Front-wall-frame

Assemble the front panel of the shed from 2x4s. Cut the components at the right size, using the instructions in the diagram. Drill pilot holes through the plates and insert 2 1/2″ screws into the studs. Align the edges and make sure the corners are square.

Header

Header

Use 2x6s and 1/2″ plywood to make the header. Drill pilot holes and insert 2 1/2″ screws on both sides of the header.

Back-wall-frame

Back-wall-frame

Assemble the back wall frame.

Buidling-the-side-walls

Building-the-side-walls

Assemble the side walls for the shed. Cut the 2x4s at the right dimensions and lock the together with 2 1/2″ screws. Make sure the corners are square and leave no gaps between the components.

Fitting the side walls

Fitting the side walls

Fit the side walls to the floor of the shed. Plumb the walls with a spirit level and secure them temporarily into place with 2×4 braces. Drill pilot oles through the bottom plates and insert 3 1/2″ screws into the floor.

Assembling the shed frame

Assembling the shed frame

Next, fit the front and the back walls to the floor of the shed. Drill pilot holes through the plates and insert 3 1/2″ screws into the floor. In addition, you need to lock together the adjacent wall frames and the corresponding top plates.

 

Step 3: Fitting the outside sheets

Attaching the side panels

Attaching the side panels

Attach the 5/8″ T1-11 siding to the sides of the shed. Leave no gaps between the panels and lock them to the frame with 1 5/8″ nails/screws.

Attaching the back panels

Attaching the back panels

Furthermore, attach the panels to the back of the shed, as well.

Front panels

Front panels

Also, attach the siding panels to the front of the shed, as well. As you can easily notice in the diagram, you need to cut out the opening for the door. Mark the cut lines and use a saw to get the job done.

12x12 shed plans

12×12 shed plans

Last but not least, fill the holes with wood putty and let them dry out for a few hours. Smooth the surface with 100-220 grit sandpaper and remove the residues with a damp cloth.

Top Tip: Apply a few coats of paint or stain to the components, to enhance the look of the project. Take a look over the PART 2 of the project to learn how to build the roof for the shed.

 

 

This woodworking project was about 12×12 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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