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4×8 Lean-To Shed Plans | Free DIY Woodworking Guide

Material and Cut List

FLOOR
(A) 7 – 2×6 Floor Joist: 3′-9″
(B) 2 – 2×6 Pressure Treated Lumber: 8′-0″
(C) 2 – 4×4 Skid: 8′-0″
(D) 2 – 23/32″ Tongue and Groove Plywood 4′ x 8′ Sheet (32SF)

WALLS
(E) 16 – 2×4 Wall Stud: 6′-8 1/2″
(F) 9 – 2×4 Wall Stud: 7′-6 1/8″
(G) 4 – 2×4 Top & Bottom Plate: 8′-0″
(H)4 – 2×4 Top & Bottom Plate: 3′-5″
(I) 2 – 2×4 Door Header: 6′-3″

SIDINGS
(J) 5 – 4′ x 8′ Plywood Siding Panel T1-11 (145SF)

ROOF & RAFTERS
(K) 7 – 2×4 Rafters: 4′-3″
(L) 2 – 4′ x 8′ 1/2″ Plywood Sheet (36SF)
(M) Roof Underlayment (40SF)
(N) 3-Tab Roof Shingles (40SF)

TRIM
(O) 6 – 1×4 Wall Trim: 7′-9 1/4″
4 – 1×4 Wall Trim: 6′ 10″
2 – 1×6 Roof Trim: 8′-2″

HARDWARE
3 1/2″ Galvanized Steel Nails
2″ Deck Screws
2″ Galvanized Finishing Nails
1 1/2″ Drilling Roofing Screw

4×8 Lean-To Shed Plans & Instructions

Step 1 – Foundation and Floor

At first, select a proper site for your lean-to shed foundation. Lean-to shed can help to make dead spaces functional, and usually placed adjacent to houses, garages, or fences.

To begin with, cut seven 2×6 lumbers to 3′-9″ length, and two 2×6 lumbers to 8’-0″. Then, place the two 8′-0″ 4×4 lumbers parallel to each other to make up the skid foundation. At this point, assemble the two 2×6 perimeter floor joist directly on top. Afterwards, install the seven 2×6 floor joists on top at 16″ O.C.  Finally, drill pilot holes through the joists and secure with 3 1/2″ screws.

Now that the foundation frame is complete, place 1 full sheets of tongue and groove plywood to cover the 32SF floor area, these sheets usually come in standard sizes of 48″ x 96″. Then, insert 2″ deck screws every 8″ along the joint to secure the plywood in place.

Step 2 – Walls

We will start with the lean-to shed’s front wall frame first, all studs and plates will be 2×4’s.

At first, cut two 2×4 to 8′-0″ in length, these will be used for the top and bottom plates. Then, cut eight 2×4’s to 6′-8 1/2″ for wall studs, arranged per elevation drawing below. Afterwards, drill pilot holes through the plates and insert the 3 1/2″ screws into the studs to secure in place. Finally, align the frame edges and make sure all corners are flush for a professional result.

Refer to Double Door Framing Plan for full dimensions and instructions, compatible with this 4×8 lean-to shed build.

Next up is the building the lean-to shed’s back wall. Firstly, cut two 2×4’s to 8′-0″ length, and nine more  2×4’s to 7′-6 1/8″ length.

After that, space the wall studs to 16″ O.C., identical to the front wall. Then, drill pilot holes through the plate and insert 3 1/2″ screws to secure the studs. Follow the framing plan below:

Now it’s time to secure all four wall frames together for your 4×8 lean-to shed. At first, line up the edges of the front and side wall frame with the floor frame edge. In addition, make sure edges line up and there’s no gaps, use a spirit level if needed. Then, drill pilot holes through the bottom wall plate, and insert 3 1/2″ screws to secure wall frame to the floor. Finally, lock the adjacent walls together by inserting 3 1/2″ screws or nails.

Repeat and assemble all 4 wall frames following the illustrated plan below:

Step 3 – Shed Roofing

Our 4×8 lean-to shed will require a total of 7 rafters, installed at 16″ O.C. directly on top of the wall frames. Each rafter is cut from 2×4’s, the roof pitch is 3:12 or 14 degrees.

Tip: measure and cut a single rafter first to make sure it fits properly, then use it as a template to cut the rest of the rafters. 

Due to the overall roof geometry, it’s easier to install the exterior siding panels first before finishing rest of the roof structure.

Firstly, measure and cut the 5 T1-11 plywood siding panels to size. Since these shed panels are designed to interlock, plan them out accordingly. The standard panel sizes are 96″ x 48″, so you’ll need about 145SF to cover the entire 4×8 lean-to shed.

Then, for the front wall siding, measure and cut out the door and window openings before installing. The rough double door opening is 72″ x 77″.

Next step is to measure and cut 1/2″ plywood sheets for the lean-to shed roof. Since these sheets usually come in the standard 96″ x 48″ size, you’ll need about 36SF to cover the entire roof structure. Insert 2 1/2″ nails into the rafters at about every 10″ to lock the plywood sheets in place.

When the panels are all secured, cover the entire roof area with underlayment or tar paper, this is a water-resistant barrier material to keep the wood structures underneath dry. In general, a 4×8 lean-to shed will require about 40SF to cover the entire roof area.

Finally, we need to lay out the roof shingles (40SF of 3-tab roof shingles) to complete the roof build. Start at the bottom of the shed roof, measure and mark every increment height all the way to top of the roof. Then, use glue or glue strip along the rake edge and drip edge. Simultaneously, insert 2 1/2″ nails to secure in place.

Tip: You can select the roof shingle material to match the roofing material of the main house for a unified look! Get samples from your local hardware or home renovation store to get a close match.

Step 4 – Trims and Door 

Installing wall corner trims will add more durability to the shed exterior sidings and give it a professional look. First, measure and cut two 1×4’s to 7′-9 1/4″, and four 1×4’s to 6’10”, trim the top angle as needed to fit. Then, align and secure these trims with 2 1/2″ nails into the wall frames.

As for the door trim: use a 6′-7″ 1×4 as the header trim, and two 6′-5″ long 1×4’s as frame trims.

Add in the shed double doors. Refer to the detailed door plans compatible with this 4×8 lean-to shed plans:

Double Door Plan

Step 5 – Paint

Prior to painting your 4×8 lean-to shed, wipe off any dirt or dusts off the T1-11 siding surface and the trims. Afterwards, prime the siding with a heavy acrylic primer, a single thorough coat will do the job. It’s best to use a small brush to fill in the grooves and corners first, and then use a larger roller to cover up the flat areas. Let it sit and dry. Lastly, apply two coats of exterior grade acrylic paint, allow 2 hours between coats to completely dry.

4×8 Lean-To Shed Plans Summary

To sum up, lean-to style sheds are one of the most useful storage sheds, which can add a lot of value to your home. There are several advantages of building a lean-to shed over other shed designs, such as ease of build, minimal construction material, and overall cost. This 4×8 lean-to shed is compact enough to fit in smaller backyards, while offering ample storage space for common garden tools and equipment. This set of 4×8 lean-to shed plans can be customized to create a number of shed build variations, get your tools and get creative!

The post 4×8 Lean-To Shed Plans appeared first on Build Blueprint.

Get the Complete 12×10 Lean-To Shed Plans – PDF Version 8.5″ x 11″ Print Ready:
PDF includes the cut list, additional diagrams and dimensions, complete step-by-step DIY instructions.
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Material and Cut List

FLOOR
10 – 2×6 Pressure Treated Lumber 10′ (cut to 9′-9″)
2 – 2×6 Pressure Treated Lumber 12′ (no cut)
3 – 4×4 Pressure Treated Lumber 12′ (no cut)
4 – 23/32″ Tongue and Groove Plywood 4′ x 8′ Sheet (120SF)

WALLS
8 – 2×4 Lumber 8′ (cut to 7′-4 1/2″)
21 – 2×4 Lumber 6′ (cut to 5′-10″)
4 – 2×4 Lumber 10′ (cut to 9′-5 “)
4 – 2×4 Lumber 12′ (no cut)

SIDINGS
11 – 4′ x 8′ Plywood Siding Panel T1-11 (cut to size)

RAFTERS
7 – 2×4 Lumber 12′ (cut to 11′-10 3/8″)
4 – 2×4 Lumber 8′ (cut to size)

ROOF
8 – 2×4 Lumber 12′ (cut to 13′-8″)
3 – 2×4 Lumber 8′ (cut to size)
12 ft. Corrugated Steel Roof Panel (140SF)

TRIM
10 – 1×4 Lumber 8′ (cut to size)

HARDWARE
3 1/2″ Galvanized Steel Nails
2″ Deck Screws
2″ Galvanized Finishing Nails
1 1/2 Drilling Roofing Screws

DOOR FRAME
2 – 2×4 Lumber 8′ (cut to 6′-5 3/4″)
2 – 2×4 Lumber 8′ (cut to 6′-3 1/2″)
1 – 2×6 Lumber 4′ (cut to 3′-7″)
2 – 2×6 Lumber 4′ (cut to 3′-3″) (used for header)
1 – 2×6 Plywood Filler (used for header)

DOOR
2 – 2×4 Lumber 6′ (cut to 5′-6″)
2 – 2×6 Lumber 3′ (no cut)
1 – 2×6 Lumber 3′ (cut to 2′-5″)
1 – Door Handle or Latch
3 – 3 1/2 in. x 5/8 in. Door Hinge

WINDOW (optional)
2 – 2×6 Lumber 4′ (cut to 3′-2 3/8″)
2 – 2×6 Lumber 4′ (cut to 3′-6 3/8″)
2 – 2×4 Lumber 4′ (cut to 3′-2 3/8″)
2 – 2×4 Lumber 4′ (cut to 2′-11 1/4″)
1 – 35 3/8″ x 35 3/8″ Single Hung Vinyl Window

Step 1 – Foundation and Floor

Start with selecting a proper site for the shed foundation, ideally a flat solid surface away from any large trees.

The first step is cut all the 2x 6 lumbers as shown in the cut list or in the plan below. Next, place the three 12′ 4×4 lumbers parallel to each other at 5′ apart. Then, assemble the four 2x 6 perimeter frame on top, this will outline the overall floor frame. Drill pilot holes through the joists and secure with 3 1/2″ screws. Finally, install the eight 2x 6 floor joists at 16″ O.C.

After the floor frame is secured, cut the tongue and groove 23/32″ plywood to size and attach to the frame. You’ll need about 4 full sheets to cover the 120SF floor area. These sheets usually come in standard sizes of 48″ x 96″. Insert 2″ deck screws every 8″ along the joint, don’t leave any gaps between the sheets. Refer to the cut pattern below:

Step 2 – Walls

Start with the front wall frame first, all frames used here are 2×4’s (except the door and window header which are 2×6’s).

Cut two 2×4 to 12′ in length, these will be used for the top and bottom plates. Then, cut eight 2×4 to 7′-4 1/2″ for wall studs, these will be placed 24″ O.C. Drill pilot holes through the plates and insert the 3 1/2″ screws into the studs to secure in place. Align the frame edges and make sure all corners are flush for a professional result.

See detailed Door and Window framing instructions here:

Shed Single Door Plan
Shed Window Plan

The 2×4 studs holding up the door header need to be cut at 6′-3 1/2″.

To construct the door header, cut two 2×6 lumber to 3′-10 1/2″ length, and insert 1/2″ plywood as filler. Use wood glue and 3 1/2″ nails to to secure all the pieces together.

Next up is the building up the shed’s back wall. Cut two 2×4 to 12′ length, and nine 2×4’s to 5′-10″ length. Follow the framing plan below.

Space the wall studs to 24″ O.C., identical to the front wall. Drill pilot holes through the plate and insert 3 1/2″ screws to secure the studs.

Continue the build by assembling the 2 side wall frames. Cut two 2×4 lumber to 9′-5″ as top and bottom plate, then cut six 2×4’s to 5′-10″ for the studs. Follow the wall frame plan below and assemble 2 sets of side walls.

Now that all 4 wall frames are done, time to put them together!

First, line up the edges of the front and side wall frame with the floor frame perimeter. Make sure edges line up and there’s no gaps, use a spirit level if needed. Then, drill pilot holes through the bottom wall plate, and insert 3 1/2″ screws to secure wall frame to the floor. After both wall frames are secured, lock the adjacent walls together by inserting 3 1/2″ screws or nails.

Repeat and assemble all 4 wall frames.

Step 3 – Roof

Prepare and cut seven 2×4 rafters to 11′-10 3/8″ length. Then cut out 2 notches per Rafter Detail illustration below, these notches are to sit flush with top of the front and back wall frames. The rafters are designed to have an overhang of 10″ on both sides.

Tip: start with cutting one rafter first, to make sure everything fits in place. 

After you’ve finished cutting up the rafters, place them 24″ O.C. on top of the wall frames. Then use 3 1/2″ nails to secure each rafter from the underside of the plate.

The next step is to add blockings and top studs to stabilize the roof structure. Measure and cut out 12 2×4 blocks length to approximately 1′-10 1/2″, place between each rafters and secure with 3 1/2″ nails from the bottom.

Now, measure and cut out 2×4 lumbers to be used as top wall studs. These studs will align directly with the wall frame studs.

Next up is installing the shed sidings, this is easier to do before we add the rest of the roof structures.

Measure and cut 10 T1-11 plywood siding panels to size. These shed panels interlock, so plan them out accordingly.

For the front wall siding, measure and cut out the door and window openings before installing. The rough door opening is 43 1/2″ x 77″, and the optional window opening is 2′-11 1/4″ x 2′-11 3/8″. The top notches to fit the rafters are about 1 1/2″ x 3 1/2″.

Adding purlins – measure and cut eight 2×4 lumbers to 13′-8″ in length. Place the purlins 24″ O.C. on top of the rafters, and nail them down with 3 1/2″ nails. Make sure the two 9 3/4″ O.C. purlins sit directly on top of the wall frames, to close any gaps between the wall and roof.

Measure and cut 2×4 lumbers to size (approximately 20 1/2″ each), nail them in-between the purlins as blockings.

Finally, measure and cut the corrugated metal roofing panels with an angle grinder (approximately 140SF). These panels are usually 36″ in width, so overlap them to avoid gaps or water leakage. Pre-drill 3/16″ holes every 8″, and insert 2″ screws into the purlins to secure the roofing panels.

Step 4 – Trims, Door, and Window

Measure and cut four 1×4 lumbers to 7′-11 3/4″, and four 1×4 lumbers to 6′-4 3/4″. Align and secure these trims with 2″ nails.

As for the door trim: use a 4′-2 1/2″ long 2×6 as header trim, and two 6′-5 3/4″ long 2×4’s as frame trims.

Add in the shed door and optional window. Refer to detailed Door and Window plans here:

Shed Single Door Plan
Shed Window Plan

Step 5 – Paint

Go ahead and get creative with your new 12×10 lean-to shed!

First, wipe off any dirt or dust off the T1-11 siding surface. Prime the siding with a heavy acrylic primer, a single thorough coat will do the job. It’s best to use a small brush to fill in the grooves and corners first, and then use a larger roller to cover up the flat areas. Let it sit and dry. Then apply two coats of exterior grade acrylic paint, allow enough time between coats to completely dry.

The post 12×10 Lean To Shed Plans appeared first on Build Blueprint.

Get the Complete 8×10 Lean-To Shed Plans – PDF Version 8.5″ x 11″ Print Ready:
PDF includes the cut list, additional diagrams and dimensions, complete step-by-step DIY instructions.
Buy Complete PDF Plan

Material and Cut List

FLOOR
9 – 2×6 Pressure Treated Lumber 8′ (cut to 7′-9″)
2 – 2×6 Pressure Treated Lumber 10′ (no cut)
3 – 4×4 Pressure Treated Lumber 10′ (no cut)
3 – 23/32″ Tongue and Groove Plywood 4′ x 8′ Sheet (cut to size)

WALLS
8 – 2×4 Lumber 8′ (cut to 7′-4 1/2″)
18 – 2×4 Lumber 8′ (cut to 6′-2″)
4 – 2×4 Lumber 8′ (cut to 7′-5 “)
4 – 2×4 Lumber 10′ (no cut)

SIDINGS
9 – 4′ x 8′ Plywood Siding Panel T1-11 (cut to size)

RAFTERS
6 – 2×4 Lumber 10′ (cut to 9′-10 3/8″)
3 – 2×4 Lumber 10′ (cut to size)

ROOF
7 – 2×4 Lumber 12′ (cut to 11′-8″)
3 – 2×4 Lumber 8′ (cut to size)
10 ft. Corrugated Steel Roof Panel (100SF)

TRIM
10 – 1×4 Lumber 8′ (cut to size)

HARDWARE
3 1/2″ Galvanized Steel Nails
2″ Deck Screws
2″ Galvanized Finishing Nails
1 1/2″ Drilling Roofing Screws

DOOR FRAME
2 – 2×4 Lumber 8′ (cut to 6′-5 3/4″)
2 – 2×4 Lumber 8′ (cut to 6′-3 1/2″)
1 – 2×6 Lumber 4′ (cut to 3′-7″)
2 – 2×6 Lumber 4′ (cut to 3′-3″) (used for header)
1 – 2×6 Plywood Filler (used for header)

DOOR
2 – 2×4 Lumber 6′ (cut to 5′-6″)
2 – 2×6 Lumber 3′ (no cut)
1 – 2×6 Lumber 3′ (cut to 2′-5″)
1 – Door Handle or Latch
3 – 3 1/2 in. x 5/8 in. Door Hinge

WINDOW (optional)
2 – 2×6 Lumber 4′ (cut to 3′-2 3/8″)
2 – 2×6 Lumber 4′ (cut to 3′-6 3/8″)
2 – 2×4 Lumber 4′ (cut to 3′-2 3/8″)
2 – 2×4 Lumber 4′ (cut to 2′-11 1/4″)
1 – 35 3/8″ x 35 3/8″ Single Hung Vinyl Window

Step 1 – Foundation and Floor

Start with selecting a proper site for the 8×10 lean-to shed foundation, ideally a flat solid surface away from any large trees.

The first step is cut all the 2×6 lumbers as shown in the cut list or in the plan below. Next, place the three 10′ 4×4 lumbers parallel to each other at 4′ apart. Then, assemble the four 2×6 perimeter frame on top, this will outline the overall floor frame. Drill pilot holes through the joists and secure with 3 1/2″ screws. Finally, install the seven 2×6 floor joists at 16″ O.C., and 12″ O.C. near the sides.

After the floor frame is secured, cut the tongue and groove 23/32″ plywood to size and attach to the frame. These sheets usually come in standard sizes of 48″ x 96″. Insert 2″ deck screws every 8″ along the joint, don’t leave any gaps between the sheets. You’ll need 80SF of plywood panels to cover the 8×10 shed floor. Refer to the cut pattern below:

Step 2 – Walls

Start with the front wall frame first, all frames used here are 2×4’s (except the door and window header which are 2×6’s).

Cut two 2×4 to 10′ in length, these will be used for the top and bottom plates. Then, cut eight 2×4 to 7′-4 1/2″ for wall studs, these will be placed 24″ O.C. Drill pilot holes through the plates and insert the 3 1/2″ screws into the studs to secure in place. Align the frame edges and make sure all corners are flush for a professional result.

See detailed Door and Window framing instructions here:

Shed Single Door Plan
Shed Window Plan

The 2×4 studs holding up the door header need to be cut at 6′-3 1/2″.

To construct the door header, cut two 2×6 lumber to 39″ length, and insert 1/2″ plywood as filler. Use wood glue to to secure all the pieces together.

Next up is the building up the shed’s back wall. Cut two 2×4 to 10′ length, and eight more 2×4’s to 6′-2″ length. Follow the framing plan below.

Space the wall studs to 24″ O.C., identical to the front wall. Drill pilot holes through the plate and insert 3 1/2″ screws to secure the studs.

Continue the build by assembling the 2 side wall frames. Cut two 2×4 lumber to 7′-5″ as top and bottom plate, then cut six 2×4’s to 6′-2″ for the studs. Follow the wall frame plan below and assemble 2 sets of side walls.

Now that all 4 wall frames are done, time to put them together!

First, line up the edges of the front and side wall frame with the floor frame perimeter. Make sure edges line up and there’s no gaps, use a spirit level if needed. Then, drill pilot holes through the bottom wall plate, and insert 3 1/2″ screws to secure wall frame to the floor. After both wall frames are secured, lock the adjacent walls together by inserting 3 1/2″ screws or nails.

Repeat and assemble all 4 wall frames.

Step 3 – Roof

Prepare and cut six 2×4 rafters to 9′-10 3/8″ length. Then cut out 2 notches per Rafter Detail illustration below, these notches are to sit flush with top of the front and back wall frames. The rafters are designed to have an overhang of 10″ on both sides.

Tip: start with cutting one rafter first, to make sure everything fits in place. 

After you’ve finished cutting up the rafters, place them 24″ O.C. on top of the wall frames. Then use 3 1/2″ nails to secure each rafter from the underside of the plate.

The next step is to add blockings and top studs to stabilize the roof structure. Measure and cut out 10 2×4 blocks length approximately 1′-10 1/2″, place between each rafters and secure with 3 1/2″ nails from the bottom.

Now, measure and cut out 2×4 lumbers to be used as top wall studs. These studs will align directly with the wall frame studs.

Next up is installing the shed sidings, this is easier to do before we add the rest of the roof structures.

Measure and cut 10 T1-11 plywood siding panels to size. These shed panels interlock, so plan them out accordingly.

For the front wall siding, measure and cut out the door and window openings before installing. The door opening is 36″ x 77″, and the optional window opening is 2′-11 1/4″ x 2′-11 3/8″. The top notches to fit the rafters are about 1 1/2″ x 3 1/2″.

Adding purlins – measure and cut seven 2×4 lumbers to 9′ 8″ in length. Place the purlins 24″ O.C. on top of the rafters, and nail them down with 3 1/2″ nails. Make sure the two 9 3/4″ O.C. purlins sit directly on top of the wall frames, to close any gaps between the wall and roof.

Measure and cut 2×4 lumbers to size, ad them in-between the purlins as blockings.

Finally, measure and cut the corrugated metal roofing panels with an angle grinder (approximately 100SF). These panels are usually 36″ in width, so overlap them to avoid gaps or water leakage. Pre-drill 3/16″ holes every 8″, and insert 2″ screws into the purlins to secure the roofing panels.

Step 4 – Trims, Door, and Window

Measure and cut four 1×4 lumbers to 7′-11 3/4″, and four 1×4 lumbers to 6′-4 3/4″. Align and secure these trims with 2″ nails.

As for the door trim – use a 43″ long 2×6 as header trim, and two 6′-5 3/4″ long 2×4’s as frame trims.

Add in the shed door and optional window. Refer to detailed Door and Window plans here:

Shed Single Door Plan
Shed Window Plan

Step 5 – Paint

Your 8×10 lean-to shed is complete! Go ahead and get creative, paint the masterpiece you’ve just created.

First, wipe off any dirt or dust off the T1-11 siding surface. Prime the siding with a heavy acrylic primer, a single thorough coat will do the job. It’s best to use a small brush to fill in the grooves and corners first, and then use a larger roller to cover up the flat areas. Let it sit and dry. Then apply two coats of exterior grade acrylic paint, allow enough time between coats to completely dry.

The post 8×10 Lean To Shed Plans appeared first on Build Blueprint.

Get the Complete 10×10 Lean-To Shed Plans – PDF Version 8.5″ x 11″ Print Ready:

Buy Complete PDF Plan

Material and Cut List

FLOOR
9 – 2×6 Pressure Treated Lumber 10′ (cut to 9′-9″)
2 – 2×6 Pressure Treated Lumber 10′ (no cut)
3 – 4×4 Pressure Treated Lumber 10′ (no cut)
4 – 23/32″ Tongue and Groove Plywood 4′ x 8′ Sheet (cut to size)

WALLS
8 – 2×4 Lumber 8′ (cut to 7′-4 1/2″)
20 – 2×4 Lumber 6′ (cut to 5′-10″)
4 – 2×4 Lumber 10′ (cut to 9′-5 “)
4 – 2×4 Lumber 10′ (no cut)

SIDINGS
10 – 4′ x 8′ Plywood Siding Panel T1-11 (cut to size)

RAFTERS
6 – 2×4 Lumber 12′ (cut to 11′-10 3/8″)
4 – 2×4 Lumber 8′ (cut to size)

ROOF
8 – 2×4 Lumber 12′ (cut to 11′-8″)
3 – 2×4 Lumber 8′ (cut to size)
12 ft. Corrugated Steel Roof Panel (120SF)

TRIM
10 – 1×4 Lumber 8′ (cut to size)

HARDWARE
3 1/2″ Galvanized Steel Nails
2″ Deck Screws
2″ Galvanized Finishing Nails
1 1/2″ Drilling Roofing Screws

DOOR FRAME
2 – 2×4 Lumber 8′ (cut to 6′-5 3/4″)
2 – 2×4 Lumber 8′ (cut to 6′-3 1/2″)
1 – 2×6 Lumber 4′ (cut to 3′-7″)
2 – 2×6 Lumber 4′ (cut to 3′-3″) (used for header)
1 – 2×6 Plywood Filler (used for header)

DOOR
2 – 2×4 Lumber 6′ (cut to 5′-6″)
2 – 2×6 Lumber 3′ (no cut)
1 – 2×6 Lumber 3′ (cut to 2′-5″)
1 – Door Handle or Latch
3 – 3 1/2 in. x 5/8 in. Door Hinge

WINDOW (optional)
2 – 2×6 Lumber 4′ (cut to 3′-2 3/8″)
2 – 2×6 Lumber 4′ (cut to 3′-6 3/8″)
2 – 2×4 Lumber 4′ (cut to 3′-2 3/8″)
2 – 2×4 Lumber 4′ (cut to 2′-11 1/4″)
1 – 35 3/8″ x 35 3/8″ Single Hung Vinyl Window

Step 1 – Foundation and Floor

Start with selecting a proper site for the shed foundation, ideally a flat solid surface away from any large trees.

The first step is cut all the 2×6 lumbers as shown in the cut list or in the plan below. Next, place the three 10′ 4×4 lumbers parallel to each other at 5′ apart. Then, assemble the four 2×6 perimeter frame on top, this will outline the overall floor frame. Drill pilot holes through the joists and secure with 3 1/2″ screws. Finally, install the seven 2×6 floor joists at 16″ O.C., and 12″ O.C. near the sides. 

After the floor frame is secured, cut the tongue and groove 23/32″ plywood to size and attach to the frame. You’ll need about 4 full sheets to cover the 100SF floor area. These sheets usually come in standard sizes of 48″ x 96″. Insert 2″ deck screws every 8″ along the joint, don’t leave any gaps between the sheets. Refer to the cut pattern below:

Step 2 – Walls

Start with the front wall frame first, all frames used here are 2×4’s (except the door and window header which are 2 x 6’s).

Cut two 2×4’s to 10′ in length, these will be used for the top and bottom plates. Then, cut eight 2×4’s to 7′-4 1/2″ for wall studs, these will be placed 24″ O.C. Drill pilot holes through the plates and insert the 3 1/2″ screws into the studs to secure in place. Align the frame edges and make sure all corners are flush for a professional result. 

See detailed Door and Window framing instructions here: 

Shed Single Door Plan
Shed Window Plan

The 2×4 studs holding up the door header need to be cut at 6′-3 1/2″.

To construct the door header, cut two 2×6 lumber to 39″ length, and insert 1/2″ plywood as filler. Use wood glue and 3 1/2″ nails to secure all the pieces together. 

Next up is the building up the shed’s back wall. Cut two 2×4’s to 10′ length, and eight more 2×4’s to 5′-10″ length. Follow the framing plan below.

Space the wall studs to 24″ O.C., identical to the front wall. Drill pilot holes through the plate and insert 3 1/2″ screws to secure the studs. 

Continue the build by assembling the 2 side wall frames. Cut two 2×4 lumber to 9′-5″ as top and bottom plate, then cut six 2×4’s to 5′-10″ for the studs. Follow the wall frame plan below and assemble 2 sets of side walls. 

Now that all 4 wall frames are done, time to put them together!

First, line up the edges of the front and side wall frame with the floor frame perimeter. Make sure edges line up and there’s no gaps, use a spirit level if needed. Then, drill pilot holes through the bottom wall plate, and insert 3 1/2″ screws to secure wall frame to the floor. After both wall frames are secured, lock the adjacent walls together by inserting 3 1/2″ screws or nails.

Repeat and assemble all 4 wall frames.

Step 3 – Roof

Prepare and cut six 2×4 rafters to 11′-10 3/8″ length. Then cut out 2 notches per Rafter Detail illustration below, these notches are to sit flush with top of the front and back wall frames. The rafters are designed to have an overhang of 10″ on both sides. 

Tip: start with cutting one rafter first, to make sure everything fits in place. 

After you’ve finished cutting up the rafters, place them 24″ O.C. on top of the wall frames. Then use 3 1/2″ nails to secure each rafter from the underside of the plate. 

The next step is to add blockings and top studs to stabilize the roof structure. Measure and cut out 10 2×4 blocks length approximately 1′-10 1/2″, place between each rafters and secure with 3 1/2″ nails from the bottom. 

Now, measure and cut out 2×4 lumbers to be used as top wall studs. These studs will align directly with the wall frame studs. 

Next up is installing the shed sidings, this is easier to do before we add the rest of the roof structures. 

Measure and cut 10 T1-11 plywood siding panels to size. These shed panels interlock, so plan them out accordingly. 

For the front wall siding, measure and cut out the door and window openings before installing. The rough door opening is 36″ x 77″, and the optional window opening is 2′-11 1/4″ x 2′-11 3/8″. The top notches to fit the rafters are about 1-1/2″ x 3-1/2″. 

Adding purlins – measure and cut eight 2×4 lumbers to 11′-8″ in length. Place the purlins 24″ O.C. on top of the rafters, and nail them down with 3 1/2″ nails. Make sure the two 9 3/4″ O.C. purlins sit directly on top of the wall frames, to close any gaps between the wall and roof.

Measure and cut 2×4 lumbers to size, nail them in-between the purlins as blockings. 

Finally, measure and cut the corrugated metal roofing panels with an angle grinder (approximately 120SF). These panels are usually 36″ in width, so overlap them to avoid gaps or water leakage. Pre-drill 3/16″ holes every 8″, and insert 2″ screws into the purlins to secure the roofing panels. 

Step 4 – Trims, Door, and Window

Measure and cut four 1×4 lumbers to 7′-11 3/4″, and four 1×4 lumbers to 6′-4 3/4″. Align and secure these trims with 2″ nails. 

As for the door trim: use a 43″ long 2×6 as header trim, and two 6′-5 3/4″ long 2×4’s as frame trims.

Add in the shed door and optional window. Refer to detailed Door and Window plans here:

Shed Single Door Plan
Shed Window Plan

Step 5 – Paint

Go ahead and get creative with your new 10×10 lean-to shed!

First, wipe off any dirt or dust off the T1-11 siding surface. Prime the siding with a heavy acrylic primer, a single thorough coat will do the job. It’s best to use a small brush to fill in the grooves and corners first, and then use a larger roller to cover up the flat areas. Let it sit and dry. Then apply two coats of exterior grade acrylic paint, allow enough time between coats to completely dry. 

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