8×20 Firewood Shed Roof Plans

This step by step diy project is about 8×20 gable shed roof plans. This is PART 2 of the wood storage shed project, where I show you how to build the gable roof. 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




8×20 Firewood Shed Roof Plans

Building a 8x20 firewood shed

Building a 8×20 firewood shed


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

  • F – 4 pieces of T1-11 siding – 48″x27″ long SIDING
  • G – 16 pieces of 2×4 lumber – 62″ long, 16 pieces – 76″ long, 16 pieces – 96″ long, 16 pieces – 19 3/4″ long RAFTERS
  • H – 4 pieces of 3/4″ plywood – 48″x96″ long, 2 pieces – 48″x48″ long, 2 pieces – 28″x96″ long, 1 piece – 28″x48″ long, 1 piece – 14″x48″ long, 2 pieces – 14″x96″ long ROOF
  • I – 250 pieces of tar paper, 250 sq ft of asphalt shingles ROOFING
  • J – 4 pieces of 1×6 lumber – 121 1/2″ long, 2 pieces – 76″ long, 2 pieces –  TRIMS
  • K – 8 pieces of 1×3 lumber – 81 1/2″ long, 2 pieces – 58″ long, 2  pieces – 24 3/4″ long, 2 pieces – 73 1/2″ long TRIMS

  • 48 pieces of 2×4 lumber – 8′
  • 11 pieces of 1×3 lumber – 8′
  • 1 piece of 1×3 lumber – 10′
  • 4 pieces of 1×6 lumber – 12′
  • 4 pieces of 1×6 lumber – 8′
  • 6 pieces of 1/2″ plywood – 4’x8′
  • 220 sq ft of tar paper, 220 sq ft of asphalt shingles
  • 2 1/2″ screws, 3 1/2″ screws, 1 5/8″ screws
  • 6d nails
  • wood filler , wood glue, stain/paint
  • rafter ties
  • truss plate

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 Hammer, Tape measure, Framing square, Level

 Miter saw, Drill machinery, Screwdriver, Sander

 Safety Gloves, Safety Glasses

[/tab] [tab id=3]

 One day

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How to build a 8×20 Gable Shed Roof



The first step of the shed project is to build the rafters for the gable roof. Use 2×4 lumber and a miter saw to make the cuts to the boards, as shown in the diagram. Make the angle cuts to the rafters.

Bottom rafters - 8x16 shed plans

Bottom rafters – 8×16 shed plans

Use 2×4 lumber for the bottom rafters. Make the angle cuts to both ends of the rafters, as shown in the diagrams.

Assembling the trusses - 8x16 shed

Assembling the trusses – 8×16 shed

Lay the rafters to a level surface and align the edges flush. Leave no gaps between the rafters. Attach the metal plates to the joints.

Middle truss support - 8x16 wood shed

Middle truss support – 8×16 wood shed

Use 2×4 lumber for the middle support. Make 25 degree cuts to the top of the support and fit it to the trusses.



Fit the rafters to the top of the firewood shed frame. Place the trusses every 16″ on center. Use a spirit level to plumb the trusses and fit rafter ties to secure them to the top plates. The rafter ties will lock the trusses into place tightly.

Gable end panels - 8x16 wood shed

Gable end panels – 8×16 wood shed

Use T1-11 siding for the side panels. Cut the panels to the right size and shape and then secure them into place with 6-8d nails. Align the edges flush and insert the nails every 8″.



Cut the roof sheets from 1/2″ plywood. Align the edges flush and then insert 1 5/8″ screws, every 8″ along the rafters, so you lock them into place tightly. Alight the edges flush and leave no gaps between the sheets, for a professional result.

Roof Sheets - 8x20 shed

Roof Sheets – 8×20 shed

Attach the 1/2″ plywood sheets to the other side of the roof.



Use 1×6 lumber for the side roof trims. Make the angle cuts with a miter saw. Use 2″ brad nails to secure the trims into place tightly.

Roof trims - front and back

Roof trims – front and back

Fit the 1×6 trims to the front and back of the roof. Align the edges flush and insert 2″ nails, so you secure the trims into place tightly. The trims are easy to install and it will add unique appeal to the shed.

Fitting the roofing - 8x20 firewood shed

Fitting the roofing – 8×20 firewood shed

Cover the roof of the shed with tar paper and then install the asphalt shingles. Use drip edges to make sure the roof is waterproof.

Front opening trims - 8x20 firewood shed

Front opening trims – 8×20 firewood shed

Use 1×3 lumber for the opening trims. Make the angle cuts and then secure the trims into place tightly with 2″ nails.

Side wall trims

Side wall trims

Use 1×3 lumber for the side wall trims. Make a miter cut to the top of the trims. Attach the trims to the sides of the shed. Use 2″ nails, every 8″ along the framing.

Front wall trims

Front wall trims

Fit the 1×3 trims to the front of the firewood shed. Align the edges flush and insert 2″ mails to lock them into place tightly.

8x20 Firewood Shed Plans

8×20 Firewood Shed Plans





8x20 Firewood Shed - Back View

8×20 Firewood Shed – Back View

You should take a look over PART 1 of the project, where I show you how to build the frame of the 8×20 firewood shed. If you like the design, this shed is the ideal choice, because it will help you keep the firewood dry and well stacked.



This woodworking project was about 8×20 shed roof 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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