12×20 Field Shed Plans

Ovidiu 0 GapDice RANDOM PLAN

This step by step diy project is about 12×20 field shed plans. I have designed this large run in shed so you can store lots of tools and other items. This shed is ideal for a homestead or for a small farm. However, I recommend you to 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.



Projects made from these plans




12×20 Field Shed Plans




  • A – 2 pieces of 4×4 lumber – 144″ long, 2 pieces – 240″ long SKIDS
  • B – 2 pieces of 2×4 lumber – 142 1/2″ long, 1 piece – 139″ long, 9 pieces – 91 1/2″ long 2xSIDE WALL
  • C – 2 pieces of 2×4 lumber – 233″ long, 1 piece – 240″ long, 11 pieces – 91 1/2″ long BACK WALL
  • D – 3 pieces of 2×4 lumber – 84 3/4″ long, 2 pieces – 36″ long, 1 piece of 2×12 lumber – 192″ long FRONT WALL
  • E – 11 pieces of T1-11 siding – 48″x96″ long SIDING

 One week



How to build a 12×20 field shed



The first step of the project is to build the skids for the field shed. As you can easily see in the diagram, you need to make cuts at both ends of the beams. Use a saw to make 1 3/4″ deep cuts at both ends and then remove the excess with a chisel. Smooth the surface with sandpaper.

Assembling the skids

Assembling the skids

Select the location for the shed and level the surface thoroughly. Remove the vegetation layer and make sure you comply with the local building codes. Fit the skids on the location. Make sure the corners are square and then measure the diagonals. Drill pilot holes and insert 3 1/2″ screws to lock the skids together tightly.



Use 2×4 lumber for the side wall frames. Cut the components at the right dimensions and then lock them together with 3 1/2″ screws. Drill pilot holes before inserting the screws, to prevent the wood from splitting. Place the studs every 24″ on center and make sure the corners are square.



Build the back  wall of the shed from 2×4 lumber. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Align the edges and make sure the corners are square. Alternatively, you could use framing nails and a framing gun.

Assembling the shed frame

Assembling the shed frame

Fit the wall frames to the floor of the shed. Align the edges with attention and plumb the walls with a spirit level. Drill pilot holes through the bottom plates and insert 3 1/2″ screws into the floor. Lock the adjacent walls together tightly using 3 1/2″ screws.



Fit the 2×4 supports to the front of the shed. Drill pilot holes and insert 2 1/2″ screws. Fit the 2×12 beam to the top of the supports, as shown in the diagram.

Fitting the braces

Fitting the braces

Fit the braces to the front of the shed. Use a miter saw to make 45 degree cuts at both ends of the braces.

Back wall siding sheets

Back wall siding sheets

Fit the siding to the back wall of the shed. Align the edges flush and leave no gaps between the sheets. Insert 6d nails, every 8″ along the framing.

Back wall panels

Side wall panels

Attach the T1-11 siding sheets to the sides of the run in shed, as well. Use the same techniques described above to get a professional result.

12x20 Field Shed Plans - Front view

12×20 Field Shed Plans – Front view

Take a look over PART 2 of the project, so you learn how to build the roof.

12x20 Field Shed Plans - Back view

12×20 Field Shed Plans – Back view

I have lots of other shed projects on the site so I recommend you to browse through all alternatives before starting the building project. See all my shed projects HERE.



This woodworking project was about 12×20 field 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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