16×20 Double Shed Door Plans

This step by step diy project is about 16×20 gable shed doors plans. This is PART 3 of the large shed project, where I show you how to frame the double doors and how to install the trims to the four sides. If you haven’t done it yet, check out PART 1 and 2 of the project for detailed instructions of how to build the floor, the walls and the roof for this shed. Take a look over the rest of my woodworking plans, if you want to get more building inspiration. Remember that you need to select the site for the shed with attention and that you have to comply with a few legal regulations.

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




16×20 Double Shed Door Plans




[tabs tab1=”Materials” tab2=”Tools” tab3=”Time” tab4=”Related Plans”] [tab id=1]

  • M – 4 pieces of 1×4 lumber – 94″ long, 2 pieces – 192″ long TRIMS
  • N – 2 pieces of 2×4 lumber – 87 1/2″ long, 1 pieces – 79″ long JAMBS
  • O – 1 piece of T1-11 siding – 36″x77 1/2″ long, 2 pieces of 2×4 lumber – 36″ long, 2 pieces – 80 1/2″ long, 1 piece – 29″ long 2xDOOR

  • 12 pieces of 1×4 lumber – 8′
  • 2 pieces of T1-11 siding – 4’x8′
  • 10 pieces of 2×4 lumber – 8′
  • 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
  • 4d nails, 16d nails, 6d nails
  • shed hinges & latch
  • wood filler , wood glue, stain/paint

[/tab] [tab id=2]

 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

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 One day

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How to build double doors for the 16×20 shed



Fit the 2×4 trims around the door opening. Cut the jambs at the right dimensions and then attach them around the opening, making sure the edges are flush. Drill pilot holes and insert 2 1/2″ screws for a professional result.



Use the panels that you have cut out in the previous steps for the double doors. Build the trims from 2×4 lumber. Lay the components on a level surface and then make sure the edges are flush. Use 1 5/8″ screws to lock the siding panels to the trims.

Fitting the double doors

Fitting the double doors

Fit the double doors to the front opening and then lock them into place with hinges. Install a latch so you can secure them door closed together tightly. Moreover, you need to fit the handles to doors.

Fitting the window trims

Fitting the window trims

Fit the 3×3 windows to the side of the shed. Afterwards, install the 1×4 trims to the doors. Align the edges with attention and lock them into place with 2″ brad nails.

Back wall trims

Back wall trims

Use 1×4 lumber for the back and front trims. Cut both ends of the horizontal trim at 30 degrees. Fit the trims into place tightly with 2″ brad nails. Leave no gaps between the trims for a professional result.

Fitting the side wall trims

Fitting the side wall trims

Fit the 1×4 trims to the sides of the shed, as well.

16x20 Shed Plans Free

16×20 Shed Plans Free

If you have’t looked over PART 1 yet, I recommend you to do it, as it will show everything you want to know about building the frame of the shed. In PART 2 of the project I show you how to frame the gable roof. This is a large shed that you can easily convert into a workshop.



This woodworking project was about 16×20 garden shed doors. 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.





  1. Michael
  2. Jamie Hord

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