12x12 Shed with Garage Door Roof Plans

This step by step diy project is about 12×12 storage shed with garage door roof plans. This gable shed roof has a 6/12 pitch and generous overhangs on all sides. Make sure you check the local building codes and make adjustments to comply with the local regulations. 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

12×12 Shed with Garage Door Roof Plans

Building-a-12×12-shed

Cut & Shopping Lists

H – 4 pieces of 4×4 lumber – 48″x27″ long, 2 pieces – 48″x39″ long SIDING
I – 2 pieces of 2×6 lumber – 90″ long, 1 piece – 140″long, 2 pieces – 20 1/2″ long, 1 piece – 31 1/2″ long 10xTRUSS
J – 4 pieces of 2×4 lumber – 90″ long, 10 pieces – 7″ long 2xOVERHANG
K – 4 pieces of 3/4″ plywood – 10″x90″ long, 4 pieces – 48″x96″ long, 4 pieces – 48″x48″ long ROOF
L – 4 pieces of 1×6 lumber – 91″ long, 2 pieces – 165 1/4″ long TRIMS
M – 240 sq ft of tar paper, 240 sq ft of asphalt shingles ROOFING

10 pieces of 2×4 lumber – 12′
40 pieces of 2×4 lumber – 8′
7 pieces of 3/4″ plywood – 4’x8′
2 pieces of T1-11 – 48″x96″
1 piece of 1/2″ plywood – 4’x8′
4 pieces of 1×6 lumber – 8′
2 pieces of 1×6 lumber – 16′
240 sq ft of tar paper, 240 sq ft of asphalt shingles
8d nails, 2 1/2″ screws, 3 1/2″ screws
wood filler , wood glue, stain/paint

Tools

Hammer, Tape measure, Framing square, Level

Miter saw, Drill machinery, Screwdriver, Sander

Safety Gloves, Safety Glasses

Time

One week

PART 1: 12×12 Shed Plans
PART 2: 12×12 Shed Roof Plans
PART 3: 12×12 Shed Trims Plans

Building a 12×12 gable shed roof

Building-the-truss

The first step of the project is to build the trusses for the 12×12 shed. As you can easily notice in the diagram, you need to build the rafters from 2×4 lumber. Cut the rafters at the right dimensions and angles using a saw. Lay the rafters on a level surface and align the edges with attention. Leave no gaps between the rafters.

Assembling the trusses

Fit the vertical supports to the trusses, as shown in the diagram. Make sure the corners are square and align the edges flush.

Fitting the gussets

Fit 1/2″ plywood over the joints and align the edges. Insert 1 5/8″ screws to lock the gussets into place tightly.

Fitting-trusses

Fit the trusses to the top of the shed. Plumb the trusses vertically and place the every 16″ on center. Use rafter ties to lock the trusses into place tightly.

Gable end panels

Fit T1-11 siding panels to the gable ends. Mark the cut lines on the panels and then lock them into place with 6d nails. Leave no gaps between the panels.

Building the overhangs

Next, you need to assemble the overhangs for the shed. Drill pilot holes through the rafters and insert 2 1/2″ screws into the blockings.

Fitting the overhangs

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

Fitting the roof sheets

Cut the sheets for the roof from 3/4″ plywood and then fit them to the top of the shed. Align the edges with attention, drill pilot holes and insert 1 5/8″ screws, every 8″ along the rafters.

Side roof trims

Fit the 1×6 trims to the sides of the roof. Align the trims with attention and insert 2″ nails

Front and back roof trims

Fit the 1×6 trims to the front and back of the roof. Align the edges and insert 2″ nails, every 8″ along the framing.

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.

12x12 Shed with garage door plans - Side view

12×12 Shed with garage door 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.

This woodworking project was about 12×12 shed with garage door 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.