12×18 Gable Shed Roof Plans

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This step by step diy project is about 12×18 shed roof plans. This is PART 2 of the 12×18 storage shed, where I show you how to build the gable roof. This shed has a sturdy structure, but I strongly recommend you to read and comply with the local building codes. 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. If you have all the materials and tools required for the project, you could get the job done in about a day.

 

 

Projects made from these plans

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12×18 Gable Shed Roof Plans

Building a 12x18 shed

Building a 12×18 shed

 

  • H – 4 pieces of T1-11 siding – 28″x48 long, 2 pieces – 40″x48″ long GABLE ENDS
  • I – 2 pieces of 2×4 lumber – 96″ long, 2 pieces – 19 1/2″ long, 1 piece – 30 1/2″ long, 1 piece of 2×6 lumber – 144″ long 15xTRUSS
  • J – 4 pieces of 2×4 lumber – 96″ long, 10 pieces – 6 1/2″ long 2xOVERHANG
  • K – 4 pieces of 3/4″ plywood – 10″x96″ long, 6 pieces – 48″x96″ long, 2 pieces – 48″x48″ long, 2 pieces – 24″x48″ long, 2 pieces – 48″x72″ long ROOF
  • N – 4 pieces of 1×6 lumber – 97 1/4″ long, 2 pieces – 236″ long TRIMS
  • L – 320 sq ft of tar paper, 320 sq ft of asphalt shingles ROOFING

 One week

 

 

How to build a gable roof for a 12×18 shed

Building the rafters

Building the rafters

The first step of the project is to build the 2×4 rafters for the gable shed. Use a miter saw and make 26.6  degree cuts to one or both ends of the beams.

Bottom rafters

Bottom rafters

Next, you need to make the angle cuts to the 2×6 bottom rafters. Use a miter saw to make 63.4 degree cuts to both ends of the beams.

Assembling the trusses

Assembling the trusses

Lay the rafters on a level surface. Leave no gaps between the rafters for a professional result.

Fitting the truss supports

Fitting the truss supports

Fit the 2×4 support to the trusses for more support.

Fitting the gussets

Fitting the gussets

Use 1/2″ plywood gussets and 1 5/8″ screws to lock the trusses together tightly.

Fitting the trusses

Fitting the trusses

Fit the trusses to the top of the shed and then plumb them with a spirit level. Use rafter ties to secure the trusses into place tightly. Place the trusses every 16″ on center, for a professional result.

Gable end panels

Gable end panels

Cut the T1-11 sheets for the gable ends and then secure them to the supports with 6-8d nails, every 8″ along the framing.

Assembling the overhangs

Assembling the overhangs

Assemble the overhangs for the front and back of the shed. Drill pilot holes through the rafters and insert 3 1/2″ screws into the blockings.

Fitting the overhangs

Fitting the overhangs

Fit the overhnags to the front and to the back of the shed. Align the edges flush, drill pilot holes and insert 3 1/2″ screws to lock them into place tightly.

Fitting the roof sheets

Fitting the roof sheets

Fit the 3/4″ plywood sheets to the roof of the shed. Align the edges flush and leave no gaps between the components. Drill pilot holes and insert 1 5/8″ screws every 8″ along the rafters to lock the sheets into place tightly.

Side roof trims

Side roof trims

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

Gable end trims

Gable end trims

Fit the 1×6 trims to the front and to the back of the shed. Use a miter saw to make the angle cut to one end of the trims and then secure them into place with 2″ nails.

How to build a 12x18 shed

How to build a 12×18 shed

This 12×18 shed is easy to build, it has a simple access to the inside and it can store lots of items.

12x18 Gable Shed Plans

12×18 Gable Shed Plans

Make sure you check out the rest of the project, so you learn how to frame the 12×18 garden shed and how to build the double doors. In addition, I have lots of other shed projects on the site so I recommend you to browse through all alternatives before starting the building project.

 

 

This woodworking project was about 12×18 gable 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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