12x12 One Horse Barn Roof Plans

This step by step diy project is about 12×12 one horse barn roof plans. This is PART 2 of the project where I show you how to build the lean to roof with a 2:12 pitch. 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. See all my Premium Plans HERE.

Projects made from these plans

12×12 One Horse Barn Roof Plans

Building-a-12×12-one-horse-barn-shed

Cut & Shopping Lists

E – 10 pieces of 2×8 lumber – 182″ long RAFTERS
D – 2 pieces of T1-11 siding – 48″x96″ long, 2 pieces – 48″x1118 1/4″ long, 2 pieces – 48″x110″ long SIDING
F – 2 pieces of 2×8 lumber – 41″ long, 8 pieces – 8 1/2″ long 2xOVERHNAGS
F – 2 pieces of 2×10 lumber – 168″ long ROOF TRIMS
G – 2 pieces of 3/4″ plywood – 12″x96″ long, 2 pieces – 12″x86″ long, 3 pieces – 48″x96″ long, 3 pieces – 48″x48″ long, 1 piece – 38″x48″ long, 1 piece – 38″x96″ long ROOF
H – 25o sq ft of tar paper, 250 sq ft asphalt shingles ROOFING

18 pieces of 2×8 lumber – 16′
2 pieces of 2×10 lumber – 14′
6 pieces of 3/4″ plywood – 4’x8′
25o sq ft of tar paper, 250 sq ft asphalt shingles
6 pieces of T1-11 siding – 4’x8′
6d 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 One Horse Barn Shed Plans
PART 2: 12×12 One Horse Barn Shed Plans
PART 3: 12×12 One Horse Barn Door Plans

How to build a 12×12 barn shed roof

Rafters—barn-shed

The first step of the project is to build the rafters for the roof of the barn shed. Use 2×8 lumber for the rafters. Mark the cut lines on the beams and then get the job done with a circular saw. Smooth the edges with sandpaper.

Fitting-the-rafters

Fit the rafters to the top of the shed structure. Place the rafters every 16″ on center and lock them to the beams with rafter ties.

Attaching the side walls

Fit the T1-11 siding sheets to the sides of the horse barn. Cut the sheets at the right dimensions and then lock them into place with 6-8d nails, every 8″ along the framing.

Building the overhangs

Assemble the side overhangs from 2×8 lumber. Drill pilot holes through the beams and insert 3 1/2″ screws into the supports. Place the supports equally spaced.

Fitting the overhangs

Fit the overhangs to the sides of the horse barn and align the edges with attention. Drill pilot holes and insert 3 1/2″ screws to lock the overhangs into place tightly.

Fitting the roof sheets

Fit the 3/4″ plywood sheets to the top of the barn shed. Align the edges with attention and insert 1 5/8″ screws, every 8″ along the rafters.

Roof trims

Fit the 2×10 trims to the front and back of the roof. Use 3 1/2″ screws to lock the trims to the rafters.

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.

12×12 One horse Horse Shed Plans

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. Check out PART 1 and PART 3 of the shed project, so you learn how to build the frame of the shed and the dutch doors.

This woodworking project was about 12×12 one horse barn 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.