12×16 Lean to Shed – Roof Plans

This step by step diy project is about diy 12×16 lean to shed roof plans. This is PART 2 of the lean to shed project, where I show you how to build the lean to roof for the 12×16 shed. Moreover, I have designed shed with many sizes so check them out, as well. Roof pitch is 4:12. 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. See all my Premium Plans HERE.

Projects made from these plans

12×16 Lean to Shed Roof Plans

Building-a-12×16-lean-to-shed

Cut & Shopping Lists

I – 8 pieces 5/8″ T1-11 siding – 48″x88″ long, 4 pieces – 48″x46 3/4″ long, 6 pieces – 48″x94 1/2″ long, 2 pieces – 48″x55 1/2″ long, 2 pieces – 48″x39 1/2″ long, 2 pieces – 48″x23 1/2″ long SIDING
J – 13 pieces of 2×8 lumber – 175 3/4″long RAFTERS
J – 4 pieces of 2×8 lumber – 175 3/4″ long, 9 pieces – 8 1/2″ long OVERHANGS
J – 2 pieces of 2×4 lumber – 14 3/4″ long, 2 pieces – 30 3/4″ long SUPPORTS
K – 2 pieces of 3/4″ plywood – 48″x92″ long, 3 pieces – 48″x96″ long, 2 pieces – 48″x28″ long, 2 pieces – 48″x60″ long, 1 pieces – 31 3/4″x60″ long, 2 piece – 31 3/4″x96″ long ROOF
L – 2 pieces of 1×10 lumber – 96″ long, 2 pieces – 79 3/4″ long, 2 pieces – 124 3/4″ long, 2 pieces – 92 3/4″ long ROOF TRIMS

18 pieces of 2×8 lumber – 16 ft
1 piece of 2×4 lumber – 8 ft
9 pieces of 3/4″ plywood – 48″x96″
19 pieces of 5/8″ siding T1-11 siding – 4’x8′
6 pieces of 1×10 lumber – 8 ft
2 pieces of 1×10 lumber – 12 ft
700 pieces of 8d nails
26 pieces of rafter ties
1 box of 1 1/2″ “structural ties
200 pieces of 2” nails
wood filler , wood glue, stain/paint

Tools

Hammer, Tape measure, Framing square, Level, Pocket hole jig

Miter saw, Drill machinery, Screwdriver, Sander

Safety Gloves, Safety Glasses

Time

One day

PART 1: 12×16 Lean to Shed Plans
PART 2: 12×16 Lean to Shed Roof Plans
PART 3: 12×16 Lean to Shed Double Doors Plans

Building a 12×16 lean to roof

Back wall siding

Fit the 5/8″ T1-11 siding sheets to the back of the shed. Align the edges flush, make cuts, and secure the panels to the frame, every 8″, using 6-8d nails.

Front wall siding sheets

Attach the panels to the front of the shed, as well. Align the edges flush and cut out the opening using a circular saw.

Rafters

Build the rafters from 2x8lumber. Mark the cut lines on the slats and get the job done with a circular saw.

Fitting-the-rafters

Fit the rafters to the top of the lean to shed. Place the rafters every 16″ on center and lock them into place with rafter ties and 1 1/2″ structural screws.

Lean to supports

Fit 2×4 supports to the lean to ends of the shed. Drill pilot holes at both ends of the supports and insert 2 1/2″ screws to lock them into place tightly.

Side wall panels

Cut the panels for the lean to ends and secure them into place with 6-8d nails. Leave no gaps between the panels for a neat result.

Assembling the overhangs

Assemble the side overhangs from 2×8 lumber. Drill pilot holes through the sides and insert 3 1/2″ screws into the blockings.

Fitting the side overhangs

Fit the blockings to the sides of the shed, align the edges flush and secure them into place with 3 1/2″ screws.

Fitting the roof sheets

Lay the 3/4″ plywood sheets to the top of the shed starting with the bottom of the roof. Use 1 5/8″ screws to secure the sheets into place, every 8″ along the rafters.

Side roof trims

Fit the 1×10 trims to the sides of the shed. Align the edges flush, leave no gaps between the boards and then lock them into place with 2″ nails.

Fitting the front and back roof trims

Fit the 1×10 trims to the front of the shed. Align the edges flush, leave no gaps between the boards and then lock them into place with 2″ nails.

Fitting the roofing

Cover the roof of the shed with roofing felt, making sure the strips overlap at least 2″. Secure the tar paper to the plywood sheets with roofing staples. In addition, cut a 12″ piece for the top ridge. Fit the side drip edges over the roofing felt, while the bottom drip edges should be fit under.

12×16 Lean to shed plans

Fill the holes with wood putty and let them dry out for a few hours. Smooth the surface with 100-220 grit sandpaper and remove the residues with a damp cloth.

Top Tip: Apply a few coats of paint or stain to the components, to enhance the look of the project. Check PART 1 of the project to learn how to build the frame of the shed and PART 3 to learn how to build the door for the shed.

This woodworking project was about 12×16 lean to 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.