12×20 Raised Center Aisle Barn Shed Roof Plans

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This step by step diy project is about 12×20 raised center aisle barn shed roof plans. This is PART 2 of the free 12×20 raised center aisle shed plans, where I show you how to build the gable roof. If you need even more storage space, you can create a small loft. Make sure you check the local codes and make adjustments to the plans, if required. 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.

 

 

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12×20 Raised Center Aisle Barn Shed Roof Plans

Building a 12x20 raised center aisle shed

Building a 12×20 raised center aisle shed

 

  • H – 4 pieces of T1-11 siding – 48″x28 3/8″ long, 2 pieces – 24″x40 3/8″ long SIDING
  • I – 2 pieces of 2×4 lumber – 90″ long, 1 piece – 44 1/2″ long 10xTRUSS
  • I – 4 pieces of 2×4 lumber – 23 7/8″ long SUPPORT
  • – 2 piece of 3/4″ plywood – 48″x96″ long, 2 pieces – 48″x48″ long, 2 pieces – 42″x96″ long, 2 pieces – 42″x48″ long 2xROOF
  • K – 4 pieces of 2×6 lumber – 90 3/8″ long, 2 pieces of 1×6 lumber – 148 1/4″ long ROOF TRIMS
  • L – 200 sq ft of tar paper, 200 sq ft of asphalt shingles ROOFING

 One week

 

 

Building a 12×12 gable shed roof

Building the rafters

Building the rafters

The first step of the project is to build the rafters for the gable storage shed. Use a miter saw to make 26.6 degrees cuts to one end of the rafters. Cut the bottom rafters at 26.6 degrees. After you cut the rafters, you need to start assembling the trusses. Therefore, lay the components on a level surface and align the edges with attention.

Fitting the gussets

Fitting the gussets

Use 1/2″ plywood for the gussets and use the information from the diagram to get the job done. Lay the gussets over the joints and then use 1 5/8″ screws to lock the gussets over the rafters.

Fitting the trusses

Fitting the trusses

Fit the trusses to the top of the shed and place the every 16″ on center. Plumb the trusses with a spirit level and use rafter ties to lock them into place tightly.

Gable end supports

Gable end supports

Fit 2×4 supports to back gable ends of the shed. Use the diagram to make the cuts to the supports, drill pocket holes at both ends and insert 2 1/2″ screws to lock them into place tightly.

Gable end panels

Gable end panels

Use T1-11 siding for the front and back wall panels. Use a saw to cut the panels at the right size and dimensions and then align the edges flush. Insert 6-8d nails, every 8″ along the framing. Make sure you don’t leave gaps between the panels, for a professional result.

Roof sheets

Roof sheets

Cut the roof sheets at the right dimensions and then fit them to the top of the shed. Align the edges with attention and insert the 1 5/8″ screws, every 8″ along the framing.

Front and back roof trims

Front and back roof trims

Fit the 2×6 trims to the front and to the back of the shed roof. Cut one end of the trims as shown in the diagram. Use 3 1/2″ nails to lock the trims into place tightly. Leave no gaps between the trims for a professional result.

Side roof trims

Side roof trims

Fit 1×6 trims to the sides of the shed roof. Align the edges and insert 2″ nails to lock them into place tightly.

Fitting the roofing

Fitting the roofing

Cover the roof with tar paper and then install the asphalt shingles. Make sure you also install the appropriate drip edges, so you can seal the shed roof. Read the manufacturer’s instructions for a tight fit.

12x20 Center Aisle Shed Plans

12×20 Center Aisle Shed Plans

This raised center aisle shed is easier to build than you can imagine and it comes with a lot of storage space.

12x20 Center Aisle Shed Plans - Side view

12×20 Center Aisle Shed Plans – Side 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. Moreover, check out PART 1 of the shed, so you learn how to build the frame of the shed. Check out PART 3 of the shed, so you learn how to build the double doors. Check out PART 4 to learn how to build the side run in sheds.

 

 

This woodworking project was about 12×20 raised center aisle barn shed roof plans. 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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