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10X20 Lean to Shed Plans

by Ovidiu

 

This step by step diy project is about 10×20 lean to shed plans. This large shed with a lean to roof is a great addition to any property, if you need a lot of storage space and you value efficiency more than design. You can easily customize this shed buy adding a side man door and several windows. 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. See all my Premium Plans HERE.

 

 

Projects made from these plans

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10×20 Lean to Shed Plans

Building-a-10x20-lean-to-shed

Building-a-10×20-lean-to-shed

 

Cut List

  • A – 3 pieces of 4×4 lumber – 240″ long SKIDS
  • B – 2 pieces of 2×6 lumber – 240″ long, 16 pieces – 117″ long FLOOR
  • C – 4 pieces  of 3/4″ plywood – 48″x96″ long, 2 pieces – 48″x48″ long, 2 pieces – 24″x96″ long, 1 piece – 24″x48″ long FLOORING
  • D – 2 pieces of 2×4 lumber – 72″ long, 1 piece – 240″ long, 1 piece – 233′ long, 14 pieces – 86 1/2″ long, 2 pieces – 78 1/2″ long, 2 pieces of 2×8 lumber – 99″ long FRONT WALL
  • E – 2 pieces of 2×4 lumber – 113″ long, 1 piece – 120″ long, 9 pieces – 86 1/2″ long 2xSIDE WALL
  • F – 2 pieces of 2×4 lumber – 240″ long, 1 piece – 233″ long, 18 pieces – 86 1/2″ long BACK WALL
  • G – 4 pieces of T1-11 siding – 48″x92 1/2″ long, 2 pieces – 24″x92 1/2″ long, 4 pieces – 48″x94″ long, 1 piece – 11″x48″ long SIDING

Shopping List

Tools

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

Time

 One week

Related

 

 

It’s that easy to build a 10×20 shed – Video!

 

 

Building a 10×20 lean to shed

Building-the-10x20-shed-floor

Building-the-10×20-shed-floor

The first step of the project is to build the floor frame. Cut the components at the right dimensions and then lay them on a level surface. Drill pilot holes through the rim joists and then insert 3 1/2″ screws into the perpendicular beams. Place the joists every 16″ on center, as in the diagram. Make sure the corners are square and the edges flush, before inserting the screws.

Fitting the skids

Fitting the skids

Select the location for the shed and make sure you remove the vegetation layer. Level the ground thoroughly and then fit the 4×4 skids under the floor frame. If you want to lift the floor frame even more, use 6×6 lumber. Align the edges and use rafter ties to secure the skids to the frame of the floor. Use a spirit level to make sure the frame is horizontal in all directions. Check out the local building codes before building the shed, so you make sure you comply with the requirements.

Floor sheets

Floor sheets

Fit a piece of 3/4″ plywood to the floor frame. Align the edges flush and insert 1 5/8″ screws, every 8″ along the framing. Leave no gaps between the sheets for a professional result. Use the pattern shown in the diagram, for a professional result.

 

Building the wall frames

Front-wall-frame

Front-wall-frame

Continue the project by assembling the front wall frame. Use 2×4 lumber for the front wall frame. Use 2×8 lumber and 1/2″ plywood for the double header. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Make sure the corners are square and align the edges flush.  You can adjust the size of the door opening to suit your needs. You can adjust the size of the opening to suit your needs.

Front-wall-frame

Front-wall-frame

Build the frame for the back wall from 2×4 lumber. Cut the components from 2×4 lumber at the right dimensions. Drill pilot holes through the plates and insert 3 1/2″ screws into the studs. Make sure the corners are square and place the studs every 16″ on center.

Building-the-side-walls

Building-the-side-walls

Build the side walls for the shed using the same techniques described above and the information from the diagram. Place the studs every 16″ on center. You can fit a window to the side walls, so make sure you make the appropriate modifications to the wall frames.

 

Assembling the shed frame

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.

Side wall siding panels

Side wall siding panels

Fit T1-11 siding panels to the sides of the shed. Leave 1 1/2″ from the top of the wall and insert 2″ nails, every 8″ along the framing. Leave no gaps between the sheets for a professional result.

Front wall panels

Front wall panels

In order to attach the siding sheets to the front of the shed you need to make a few cuts. Mark the cut lines and then get the job done with a circular saw. Insert 2″ nails, every 8″ along the framing. You will use the cutout panel for the door.

10x20 Lean to Shed Plans

10×20 Lean to Shed Plans

This large storage shed is easy to build and if you choose to build it by yourself using my plans, you will save a lot of money. You can adjust the plans by adding more doors or windows. according to your needs. If you add a ramp, this shed will be even more versatile.

10x20 Lean to Shed Plans - Front View

10×20 Lean to Shed Plans – Front View

Make sure you take a look over PART 2 and PART 3 of the project, so you learn how to build the lean to roof and how to build the decorative trims. 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.

If you want to get this project as a PDF file with 1 full Cut list and 1 full Shopping list, please take a look over the GET PDF PLANS button bellow.

 

 

This woodworking project was about 10×20 lean to 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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17 comments

Tammie Nichols -

For the plywood flooring it should say 48×48 2 pc. Not 24×48 2 pc. There is only one of this size needed for the front right corner ,which is already listed😊

Reply
Ovidiu -

Thank you. I have updated the list.

Reply
Carrie -

Where do you recommending finding the 20 ft long pieces?

Reply
Ovidiu -

Menards, Lowes etc

Reply
Dave -

Should the flooring be constructed with treated lumber?

Reply
Ovidiu -

Yes, that would be advisable.

Reply
Ovidiu -

Yes, I recommend that.

Reply
Ed Brown -

For leveling the skids, how far apart should the supports or block or what ever be? Or how many should I use to support the floor? I have uneven ground so it can sit more or less on the ground at one end but it’ll be off the ground at the other end.

Reply
Christopher -

Is that a complete material list under the shed portion of the plans?

Reply
Ovidiu -

Yes, the second list is the materials list.

Reply
Craig Ham -

For this shed, could the top of the back wall be extended to 48″ to allow room for storage? If so, would the front need to be raised some too?

Reply
Tim Gilley -

Thank you so much for the plans! We are building a very large shed right now with your plans.
But I need another copy of our plans. I cant copy my original, because it s all modified and written on.

How do I print the plans? In the FAQs it says there is a “floating widget” to print, but there is not.

Again, than you. This is awesome!

Reply
Ovidiu -

For the time being the print function is disabled, due to some issues with people selling my free plans on other platforms. I will solve this legally and then make the print function available again.

Reply
Judy -

Can I buy this plan with an engineers stamp?

Reply
Ovidiu -

No, sorry

Reply
Judy -

Trying to buy these plans but nothing loads one I put it in the cart. Can you help?

Reply

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