Free shed plan
4x8 Lean To Shed Plans
A shallow lean-to for garden tools and bins along a fence or the back of a garage.
- 32
- 52
- 12
- 5.8%
Specifications
| Footprint | 8' wide x 4' deep (32 sq ft) |
|---|---|
| Roof | Lean-to (single slope), 3/12 pitch, 6" eaves |
| Front / back wall | 8' 1-1/8" / 7' 2" |
| Overall height | about 9' 8-1/2" from grade to peak |
| Framing | 2x4 walls at 16" OC, 2x6 rafters at 16" OC, 2x6 joists at 16" OC |
| Foundation | 3 pressure-treated 4x6 skids on a gravel pad |
| Door | 36" x 78" on the front wall (rough opening) |
| Windows | none |
| Longest board | 16 ft |
| Design snow load | 30 psf |
Notes on this design
- At 3/12, asphalt shingles need two layers of underlayment. The underlayment count includes the second layer.
Foundation and floor
3 pressure-treated 4x6 skids run front to back on a compacted gravel pad. The floor joists run across them, so no joist spans more than 46-1/4". See the foundation guide for leveling and squaring.
Wall framing
Walls are drawn from the outside. The front and back walls run the full width and carry the rafters; the side walls fit between them and step down with the roof. The wall framing guide walks through layout and raising.
Front wall (high): layout marks
| Studs, left edge | 0", 1-1/2", 15-1/4", 27", 28-1/2", 66", 67-1/2", 79-1/4", 93", 94-1/2" |
|---|---|
| Door rough opening | 30" to 66" from the left end (36" wide) |
| Door header | 2-2x6, bottom at 78", top at 83-1/2" above the subfloor |
Back wall (low): layout marks
| Studs, left edge | 0", 1-1/2", 15-1/4", 31-1/4", 47-1/4", 63-1/4", 79-1/4", 93", 94-1/2" |
|---|
Left side wall: layout marks
| Studs, left edge | 0", 11-3/4", 27-3/4", 39-1/2" |
|---|
Right side wall: layout marks
| Studs, left edge | 0", 11-3/4", 27-3/4", 39-1/2" |
|---|
Roof framing
7 2x6 rafters at 16" on center, 3/12 pitch with a 6" eave. Each rafter is notched over the front and back walls. The rafter guide shows how to lay out the pattern.
Span checks
| Member | Size | Span | Allowed | Result |
|---|---|---|---|---|
| Rafters | 2x6 | 3' 8-1/2" | 11' 8-7/8" | OK, 217% spare |
| Floor joists | 2x6 | 3' 10-1/4" | 8' 7-13/16" | OK, 124% spare |
| Door header, front wall (high) | 2-2x6 | 3' 3" | 11' 5-13/16" | OK, 253% spare |
Shopping list
| Lumber to buy | Qty |
|---|---|
| 4x6 pressure-treated (ground contact) | |
| 8 ft | 1 |
| 10 ft | 1 |
| 2x6 pressure-treated (ground contact) | |
| 8 ft | 2 |
| 12 ft | 2 |
| 2x4 framing lumber | |
| 92-5/8" precut stud | 21 |
| 8 ft | 6 |
| 10 ft | 2 |
| 12 ft | 4 |
| 2x6 framing lumber | |
| 12 ft | 1 |
| 16 ft | 2 |
| 1x4 exterior trim board | |
| 8 ft | 4 |
| 12 ft | 2 |
| 16 ft | 2 |
| 1x6 exterior trim board | |
| 8 ft | 2 |
| Sheets, roofing and hardware | Buy |
|---|---|
| Sheet goods | |
| 3/4" tongue-and-groove plywood subfloor, 4x8 | 1 sheet |
| Panel siding (T1-11 or engineered wood), 4x8 | 4 sheets |
| Panel siding, 4x8 | 4 sheets |
| Panel siding for the sloped side walls, 4x8 | 1 sheet |
| 7/16" OSB roof sheathing, 4x8 | 2 sheets |
| Z-flashing for the horizontal siding joints, 10 ft pieces | 4 pieces |
| Roofing | |
| Asphalt shingles, 3 bundles per square | 2 bundles |
| Starter strip shingles | 1 bundle |
| Synthetic roof underlayment, 10-square roll | 1 roll |
| Drip edge, 10 ft pieces | 3 pieces |
| Fasteners and hardware | |
| Framing nails, 16d common, 3-1/2" x 0.162" | 7 lb |
| Toenail nails, 10d box, 3" x 0.128" | 3 lb |
| Galvanized siding nails, 2-1/2" (8d) | 8 lb |
| Roof sheathing nails, 2-1/2" (8d) | 2 lb |
| Exterior screws for the subfloor, 2" | 1 lb |
| Rafter-to-plate connectors (hurricane ties) | 14 |
| Roofing nails, 1-1/4" | 2 lb |
| Construction adhesive (subfloor) | 1 tube |
| Shed ground anchors | 4 |
Lumber-yard takeoff
The whole shopping list on one printed page, with a box to tick for each line at the yard.
8x4 Lean-To Shed plan: lumber-yard takeoff
8' x 4' lean-to, 3/12 roof. Tick each line as it goes on the cart. theshedplanner.com
Lumber
- 14x6 pressure-treated (ground contact), 8 ft
- 14x6 pressure-treated (ground contact), 10 ft
- 22x6 pressure-treated (ground contact), 8 ft
- 22x6 pressure-treated (ground contact), 12 ft
- 212x4 framing lumber, 92-5/8" precut stud
- 62x4 framing lumber, 8 ft
- 22x4 framing lumber, 10 ft
- 42x4 framing lumber, 12 ft
- 12x6 framing lumber, 12 ft
- 22x6 framing lumber, 16 ft
- 41x4 exterior trim board, 8 ft
- 21x4 exterior trim board, 12 ft
- 21x4 exterior trim board, 16 ft
- 21x6 exterior trim board, 8 ft
Sheet goods
- 1 sheet3/4" tongue-and-groove plywood subfloor, 4x8
- 4 sheetsPanel siding (T1-11 or engineered wood), 4x8
- 4 sheetsPanel siding, 4x8
- 1 sheetPanel siding for the sloped side walls, 4x8
- 2 sheets7/16" OSB roof sheathing, 4x8
- 4 piecesZ-flashing for the horizontal siding joints, 10 ft pieces
Roofing
- 2 bundlesAsphalt shingles, 3 bundles per square
- 1 bundleStarter strip shingles
- 1 rollSynthetic roof underlayment, 10-square roll
- 3 piecesDrip edge, 10 ft pieces
Fasteners and hardware
- 7 lbFraming nails, 16d common, 3-1/2" x 0.162"
- 3 lbToenail nails, 10d box, 3" x 0.128"
- 8 lbGalvanized siding nails, 2-1/2" (8d)
- 2 lbRoof sheathing nails, 2-1/2" (8d)
- 1 lbExterior screws for the subfloor, 2"
- 14Rafter-to-plate connectors (hurricane ties)
- 2 lbRoofing nails, 1-1/4"
- 1 tubeConstruction adhesive (subfloor)
- 4Shed ground anchors
Foundation
- 1 rollLandscape fabric, enough to cover 10' x 6'
Site prep
- 0.7 cu ydGravel base: compactable crushed stone, 4" pad 1 ft wider than the shed on every side, before compaction
Cut list
| Qty | Size | Length | Piece |
|---|---|---|---|
| Front wall (high) | |||
| 2 | 2x4 | 76-1/2" | Jack stud, door |
| 2 | 2x6 | 39" | Header ply, door (36" opening) |
| 3 | 2x4 | 10-5/8" | Cripple above door header |
| 8 | 2x4 | 92-5/8" | Stud |
| 2 | 2x4 | 96" | Bottom and top plate |
| 1 | 2x4 | 96" | Cap plate (second top plate) |
| 2 | 2x4 | 12-1/4" | Blocking behind the siding joint |
| 2 | 2x4 | 10-1/4" | Blocking behind the siding joint |
| 2 | 2x4 | 2-3/4" | Blocking behind the siding joint |
| 2 | 2x4 | 14-1/2" | Blocking behind the siding joint |
| Back wall (low) | |||
| 9 | 2x4 | 81-1/2" | Stud |
| 2 | 2x4 | 96" | Bottom and top plate |
| 1 | 2x4 | 96" | Cap plate (second top plate) |
| Left side wall | |||
| 4 | 2x4 | 81-1/2" | Stud |
| 2 | 2x4 | 41" | Bottom and top plate |
| 1 | 2x4 | 41" | Cap plate (second top plate) |
| 1 | 2x4 | 3-5/16" | Rake infill stud (long point) |
| 1 | 2x4 | 7-5/16" | Rake infill stud (long point) |
| Right side wall | |||
| 4 | 2x4 | 81-1/2" | Stud |
| 2 | 2x4 | 41" | Bottom and top plate |
| 1 | 2x4 | 41" | Cap plate (second top plate) |
| 1 | 2x4 | 7-5/16" | Rake infill stud (long point) |
| 1 | 2x4 | 3-5/16" | Rake infill stud (long point) |
| Roof | |||
| 7 | 2x6 | 63-1/4" | Rafter |
| Floor | |||
| 3 | 4x6 PT | 48" | Skid (runs front to back) |
| 4 | 2x6 PT | 93" | Floor joist |
| 2 | 2x6 PT | 48" | Rim joist (sides) |
| Trim | |||
| 4 | 1x4 | 104-3/8" | Corner trim board |
| 4 | 1x4 | 93-1/4" | Corner trim board |
| 2 | 1x6 | 96" | Fascia board (eaves) |
| 2 | 1x4 | 61-7/8" | Rake trim board |
Build it in 7 steps
- 1
Check permits and pick the site
Confirm what your building department and zoning rules require for a 32 sq ft shed, then call 811 before you dig. Read the guide
- 2
Build the foundation
Level a gravel pad 1 ft wider than the shed and set 3 pressure-treated 4x6 skids 46-1/4" on center. Read the guide
- 3
Frame the floor
Two 4' rim joists and 4 joists at 93", 16" on center, squared by the diagonals and covered with 3/4" tongue-and-groove plywood.
- 4
Frame and raise the walls
Build each wall flat with 92-5/8" studs, headers over the openings and a double top plate. Raise, plumb and brace. Read the guide
- 5
Cut and set the rafters
Make one pattern 2x6 rafter, 61-7/8" plumb cut to plumb cut, test it, then cut 6 more. Read the guide
- 6
Sheathe and roof
Nail 2 sheets of 7/16" OSB, add drip edge and underlayment, then shingles.
- 7
Side and trim
Hang the panel siding, then the corner boards, fascia and rake trim. Fit the doors and windows and seal every cut edge.