6x10 Lean-To Shed Material List: Lumber, Sheets, Hardware

Last updated October 15, 2026

A 6×10 lean-to shed material list on skids comes to 56 2x4s, 7 treated 2x6s and 3 treated 4×4 skids, plus 3 sheets of floor plywood, 3 of OSB, 12 of T1-11 and 3 bundles of shingles. That assumes an 80 in back wall, a 3/12 roof, a 60 in double door and one window.

The counts are grouped by the stock lengths a lumber yard sells. Three things catch buyers on this size: the 97 1/8 in front wall is just too tall for 4×8 siding, so five sheets are 4×9; the left and right walls use different stepped stud lengths; and the two tallest side studs are longer than a precut stud.

This list is for a freestanding shed with a shingle roof. For one built onto a house wall, read building a lean-to shed against a house first.

What this 6×10 lean-to list assumes

This list is for a shed 6 ft deep and 10 ft wide, 60 sq ft of floor. Here is the shed this list is built for:

• Walls: the back (low) wall is 80 in tall and the front (high) wall is 97 1/8 in, both counting the bottom plate and double top plate. Back studs are 6′ 3 1/2″ and front studs 7′ 8 5/8″.
• Roof: 3/12 pitch (about 14 degrees), 2×4 rafters with a birdsmouth on both walls, 8 in overhangs front and back, 4 in rakes on the sides. The roof is 128 in long by about 90 3/4 in down the slope, roughly 81 sq ft.
• Height: about 9 ft 5 1/4 in overall at the high front edge, measured from the bottom of the skids.
• Spacing: studs, floor joists and rafters at 16 in on center.
• Floor: three pressure-treated 4×4 skids on a crushed stone pad, 2×6 joists across the 6 ft depth, 3/4 in tongue and groove plywood.
• Loads: the 2×4 rafters span 65 in against a 98 in limit (SPF #2 at 16 in, 30 psf ground snow). In heavier snow country, check your local permit office for your snow load.
• Openings: a 60 in double door in the front wall, with two leaves 6′ 5 1/4″ tall, and one 36 x 36 in window in the back wall.

The paid 3DSHEDPLANS 6×10 lean-to plan is a little different: it has no window, an 81 1/2 in sidewall and a 60 x 72 in door opening. If you build that plan, use the material list in its PDF. If you want a window and a slightly taller door, this list covers that version.

Shopping list by stage: the full 6×10 lean-to shed material list

Lumber sizes are nominal. A 2×4 measures about 1 1/2 x 3 1/2 in and a 2×6 about 1 1/2 x 5 1/2 in, as the American Wood Council explains. Check the grade stamp on plywood and OSB; the APA trademark guide shows how to read it.

Floor

Item	Qty	Used for
Pressure-treated 4×4 x 10 ft	3	Skids
Pressure-treated 2×6 x 10 ft	2	Rim joists
Pressure-treated 2×6 x 12 ft	5	9 floor joists, two per board
3/4 in T&G plywood, 4×8 sheet	3	Floor decking
2×4 x 8 ft	2	Flat seam blocks under the ripped decking row
Crushed stone 3/4 in, loose	1.5 cu yd	Gravel pad
Deck screws 2 in (or 6d ring-shank nails)	3 lb	Decking

The 6 ft joist span takes one full 47 1/2 in row of decking and a 24 1/2 in row ripped from the third sheet. The seam between the two rows crosses the joists, so flat 2×4 blocks go in each joist bay under it to keep the cut edge from flexing. Ask for treated lumber rated for ground contact for the skids, rims and joists; the tag on each board says which rating it has.

Walls

Item	Qty	Used for
2×4 x 8 ft	42	Front studs, all 12 side studs, side bottom plates, back sill and lower cripples, front cripples, plus the rafters and blocking in the roof stage
2×4 x 10 ft	6	Front and back plates and cap plates
2×4 x 12 ft	2	Sloped side top plates, back window trimmers
2×4 x 14 ft	6	Back wall studs (two per board), front door trimmers
2×8 x 12 ft	1	Door header
2×6 x 8 ft	1	Window header
Strap ties (twist straps)	4	Lean-to wall corners
Temporary braces 2×4 x 12 ft	12	Plumb and diagonal bracing, reused later
2×4 x 8 ft	3	8 brace stakes at 24 in, 8 deck cleats at 12 in

The 42 boards at 8 ft are one line on the yard ticket, but they also cover the 9 rafters, 2 fly rafters, lookout blocks and rafter blocking. The two header filler strips of 1/2 in plywood are ripped from the soffit sheet, so buy that sheet with the wall lumber.

Buy full 96 in boards, not 92 5/8 in precut studs: the two tallest side studs are 93 1/8 and 93 1/4 in, and the rafters need 91 5/8 in plus their angled cuts. The 9 front studs are exactly 92 5/8 in, so precuts would work for those alone. Your order totals 73 2x4s, counting braces, stakes and seam blocks.

Roof

Item	Qty	Used for
2×4 rafters from the 8 ft boards above	9 + 2	Rafters and fly rafters, each 7′ 7 5/8″
Hurricane ties, H2.5A type or equal	18	Rafter to plate, both walls
7/16 in OSB, 4×8 sheet	3	Roof sheathing
15 lb felt, 400 sq ft roll	1	Underlayment, laid double below 4/12
3-tab shingles, 26 per bundle	3 bundles	Roof and starter course
Drip edge, 10 ft	5	Eaves and rakes
Roofing nails 1 1/4 in galvanized	5 lb	Shingles
Roofing cap nails 1 in	1 lb	Felt
Roofing cement, 10 oz tube	2	Roofing

At 3/12, check the minimum slope printed on the shingle wrapper. The Asphalt Roofing Manufacturers Association explains why roofs from 2/12 to 4/12 need the extra underlayment.

Siding and trim

Item	Qty	Used for
5/8 in T1-11, 4×9 sheet	3	Front (high) wall
5/8 in T1-11, 4×8 sheet	3	Back (low) wall
5/8 in T1-11, 4×9 / 4×8 sheet	2 / 2	Sloped side walls
5/8 in T1-11, 4×8 sheet	2	Door leaves (one per leaf)
1/2 in plywood, 4×8 sheet	1	Eave soffit and header fillers
1×6 x 12 ft	2	Eave fascia
1×6 x 8 ft	2	Rake fascia
1×4 x 14 ft	6	Back corner trim, door casing sides, stiles, Z braces
1×4 x 12 ft	1	Door rails
1×4 x 10 ft	4	Front corner trim
1×4 x 8 ft	3	Door head casing, window casing
1×2 x 8 ft	2	Door stop and astragal
Drip cap, 10 ft	1	Over the door and window head casings
Insect screen, 2 ft x 25 ft	1 roll	Gaps at the eaves and soffit (the list has no roof or gable vents)
Exterior paint and primer in one	3 gal	Two coats, about 372 sq ft each
Exterior caulk	3 tubes	Trim

Hardware and window

Item	Qty
Framing nails 3 1/2 in (16d), hot-dip galvanized	19 lb
Siding nails 2 1/2 in (8d), hot-dip galvanized	10 lb
Sheathing nails 2 1/2 in (8d) for OSB	5 lb
Connector nails 1 1/2 in for ties and straps	2 lb
Construction adhesive, 10 oz tube	5
T-strap door hinges	6
Door handle and latch set	1
Barrel bolts for the fixed leaf	2
Exterior screws 1 1/4 in (door frame to T1-11)	1 lb
Exterior screws 2 1/2 in (hinge straps into framing)	1 box
Prefabricated window, 36 x 36 in rough opening	1
Flashing tape 4 in	1 roll
Wood shims	1 bundle

Cut list highlights

Most of the 6×10 lean-to cut list is square cuts: 9 front studs at 7′ 8 5/8″, 10 back studs at 6′ 3 1/2″, 9 floor joists at 5′ 9″ and three skids at 10′ 0″. The parts below have angled cuts or a different length each time. Dry-fit the first of each part on your own frame before cutting the rest.

Part	Lumber	Cut length	Qty
Rafter (board length)	2×4	7′ 7 5/8″	9
Fly rafter (rake)	2×4	7′ 7 5/8″	2
Side wall sloped top plate	2×4	5′ 6 7/8″	2
Side wall bottom plate	2×4	5′ 4 7/8″	2
Left wall studs	2×4	6′ 5 3/8″ to 7′ 9 1/8″	6, all different
Right wall studs	2×4	7′ 9 1/4″ down to 6′ 5 3/8″	6, all different
Door header (2×8 doubled + 1/2 ply)	2×8	5′ 3″	2
Door trimmer	2×4	6′ 4 1/2″	2
Cripple over the door	2×4	8 7/8″	4
Window header (2×6 doubled + 1/2 ply)	2×6	3′ 3″	2
Window trimmer	2×4	5′ 10″	2
Blocking between rafters	2×4	5 3/4″, 1′ 1 3/4″ and 1′ 2 1/2″	2, 2 and 12
Lookout block (rake overhang)	2×4	2 1/2″	10
Eave fascia	1×6	10′ 8″	2
Rake fascia (tip to tip)	1×6	7′ 9 5/8″	2
Front corner trim, side face (slope cut)	1×4	8′ 2 3/4″	2
Back corner trim, side face (slope cut)	1×4	6′ 9 3/8″	2

Rafters. The 7′ 7 5/8″ figure is the board each rafter needs, measured corner to corner, and it includes both 8 in overhangs. Plumb cuts are at about 14 degrees (3/12). Each rafter gets two birdsmouths, one on each wall, with a 3 1/2 in seat that notches under 7/8 in into the 2×4, well inside the common rule of thumb of one-third of the rafter depth.

Cut one pattern rafter, test it on both walls, then trace the other 8. The 2 fly rafters are carried on the lookout blocks at the rakes and get no birdsmouth.

Side wall studs. Each side wall has 6 studs under a sloped top plate. Every length is the long point, from the top of the bottom plate to the underside of the sloped plate.

Stud	Left wall, shortest first	Right wall, tallest first
1	6′ 5 3/8″	7′ 9 1/4″
2	6′ 8 1/4″	7′ 6 1/4″
3	7′ 0 1/4″	7′ 2 1/4″
4	7′ 4 1/4″	6′ 10 1/4″
5	7′ 8 1/4″	6′ 6 1/4″
6	7′ 9 1/8″	6′ 5 3/8″

The two walls do not use the same middle lengths, because each wall’s 16 in layout starts from a different corner. Mark each stud with its wall and position as you cut it. Cut the top of each stud at the roof angle (3 on a speed square, about 14 degrees) and check the first one against the plate.

Headers. The 60 in door gets a doubled 2×8 header with a 1/2 in plywood filler on 6′ 4 1/2″ trimmers, with four 8 7/8″ cripples above it. The back window header is a doubled 2×6 on 5′ 10″ trimmers. It fills the space right up to the plates, so there are no cripples above it. Below the window go a 3′ 0″ sill and two 2′ 8 1/2″ cripples.

Plates. The front and back plates and cap plates run the full 10′ 0″. Each side wall has a 5′ 4 7/8″ bottom plate, 1/8 in short of the gap so the wall drops in between the standing front and back walls, and a single 5′ 6 7/8″ sloped top plate. A lean-to side wall has no level top plate to lap over the front and back walls, so a twist strap at each of the 4 corners ties the sloped plate to the front or back top plate.

Gable vs lean-to: what changes

The same 6×10 footprint run as a gable at 6/12 (94 1/2 in walls, ridge along the 10 ft length, door in the front, window in the back) keeps the floor and changes most of what sits above it.

Item	Lean-to (3/12)	Gable (6/12)
Rafters	9 2×4 at 7′ 7 5/8″ + 2 fly	18 2×4 at 4′ 2 1/8″ + 4 fly
Ridge board	None	2×6, cut 10′ 8″
Rafter ties and collar ties	None (no ridge, no outward thrust)	7 rafter ties + 4 collar ties
Wall studs	7′ 8 5/8″ front, 6′ 3 1/2″ back, stepped sides	7′ 6″ on all four walls
2×4 framing boards (plus 5 helper boards and 12 braces in both)	56	72
2×6 boards (not treated)	1	2
T1-11 sheets	12: five 4×9, seven 4×8	13, all 4×8
Roof OSB sheets	3	3
Shingle bundles	3	4 (incl. ridge cap)
Felt	1 roll, laid double	1 roll, single
Framing nails	19 lb	25 lb
Extra hardware	4 twist straps	2 Z-flashing pieces
Floor (skids, joists, decking)	3, 9, 3 sheets	3, 9, 3 sheets

The lean-to needs 16 fewer 2×4 framing boards and no ridge or gable triangles. In exchange 5 of its 12 siding sheets are 4×9 instead of 4×8, and the felt goes on twice. A lean-to sends all its roof water off the back edge, so keep that side clear of fences and paths. Our gable vs lean-to vs hip roof comparison covers the trade-offs beyond lumber.

Where the waste goes

• Rafters: 7′ 7 5/8″ from an 8 ft 2×4 leaves about 4 3/8 in, so a split or out-of-square end on the board can still be trimmed off.
• Front studs: 7′ 8 5/8″ from an 8 ft board leaves about 3 3/8 in each.
• Back studs: two 6′ 3 1/2″ studs come out of each 14 ft 2×4, leaving about 17 in. The two door trimmers pair up in one more 14 ft board.
• Side studs: all 12 come from 8 ft boards, so the offcuts run from about 18 5/8 in on the shortest stud down to under 3 in on the tallest.
• Floor joists: two 5′ 9″ joists come out of each 12 ft board with about 6 in left. Nine joists from five boards leaves one treated piece about 6′ 3″ long, handy for a ramp cleat or a step.
• Plates and skids: the 10′ 0″ plates, rims and skids use the full board, so there is no spare length to square a bad end. Sight down each one at the yard.
• Fascia: each 10′ 8″ eave fascia leaves about 16 in of a 12 ft 1×6, and each 7′ 9 5/8″ rake fascia leaves about 2 3/8 in of an 8 ft board.
• Stakes and cleats: four 24 in stakes or eight 12 in cleats come from each 8 ft board, so after saw kerfs the last piece runs a little short. That is fine for temporary bracing.
• No spares: the counts include no extra boards. Add a few 2×4 x 8 ft if you expect to reject warped or split boards.

The longest boards on this list are 14 ft: six 2x4s (five for back studs, one for the door trimmers) and six 1x4s for corner trim and door parts. A 14 ft board hangs well past a short pickup bed, so ask the yard about delivery.

Tools you need

Plan on a circular saw, speed square, tape, chalk line, 4 ft level, framing hammer or nailer, drill driver, sawhorses, safety glasses and a utility knife for felt and shingles. For the roof, a 16 ft extension ladder reaches about 3 ft past the high front edge. Have a helper for raising each wall, the 164 lb front wall most of all.

Common mistakes

• Buying all 4×8 siding. The front wall is 97 1/8 in tall, just over 8 ft, so the front and part of each side take 4×9 T1-11. Check that your yard stocks 4×9 sheets before you order.
• Mixing up the side studs. The left and right walls step from opposite corners and share only the shortest stud length. Lay out both sloped plates first, then cut and number the studs wall by wall.
• Single felt at 3/12. Below 4/12 this list lays the felt in a double layer. Read the minimum slope on the shingle wrapper, and check your local permit office for the underlayment rule in your area.
• One birdsmouth instead of two. Each rafter bears on both walls, so it needs a seat at the front and at the back. Mark both from the pattern rafter.
• Framing the front wall past the deck edge without support. The front wall frame is taller than the 6 ft deck is deep, so it hangs about 2′ 3″ past the open back edge while you nail it. Hold that end level on blocks at deck height, about 9 3/4 in above the pad (4×4 skid, 2×6 joist and 3/4 in plywood). Those blocks may land past the edge of the gravel, so set them on firm, level ground.
• Siding before the walls stand. Raise all four walls as bare frames and brace them first; the list buys 12 braces so they can all stay on until the siding goes up.
• Sealing the eaves tight. The list has no roof vents, so leave the screened gaps at the eaves open for air. Closing them up traps damp air under a low 3/12 roof.
• Setting the low wall tight to a fence. All the roof water comes off the back edge, and you still need room to nail and paint the back siding. Leave a few feet of clear ground behind the shed.
• Untreated wood near the ground. Skids, rims and joists are pressure treated; plain framing lumber there rots. The USDA Wood Handbook explains why wet, untreated wood decays. Use hot-dip galvanized nails, and pick deck screws labeled for treated lumber, in the treated floor frame.

The list has no ground anchors or tie-down hardware, and a 9 ft 5 in tall shed on skids catches wind. Setbacks, anchor and permit rules vary by town, so check your local permit office before you order. For how to read any list like this one, see our shed material list guide, and for the base under the skids, shed foundation options. For other sizes, try the shed material calculator.

Get the full plan

The 6×10 lean-to shed plan is a 3DSHEDPLANS PDF with 40+ steps, 3D images and its own printable material list for its layout, which also has a 60 in double door. Download the free 6×10 lean-to preview PDF to see the format before you buy.

For the same 6 ft depth in a square shed, the 6×6 lean-to shed plan has its own 6×6 lean-to material list. For a narrow side yard, the 4×10 lean-to shed plan keeps the 10 ft front, and the 8×16 lean-to shed plan gives much more room with the same roof. Compare every size on the lean-to shed plans and shed plans pages.

Frequently asked questions

How many 2x4s do I need for a 6×10 lean-to shed?

56 2×4 framing boards for a 6×10 lean-to on skids: 42 at 8 ft, 6 at 10 ft, 2 at 12 ft and 6 at 14 ft. Add 5 more 8 ft boards for deck seam blocks, brace stakes and cleats, and 12 2×4 x 12 ft temporary braces you reuse later.

What size rafters does a 6×10 lean-to shed need?

2×4 rafters at 16 in on center: 9 rafters plus 2 fly rafters, each cut from an 8 ft board to 7' 7 5/8". They span 65 in against a 98 in limit for SPF #2 at 30 psf ground snow. If you get more snow than that, check your local permit office.

How many sheets of plywood, OSB and T1-11 for a 6×10 lean-to shed?

3 sheets of 3/4 in tongue and groove plywood for the floor, 3 sheets of 7/16 in OSB for the roof, 12 sheets of 5/8 in T1-11 (five 4×9 and seven 4×8, two of them for the door leaves) and 1 sheet of 1/2 in plywood for the soffit and header fillers.

How many bundles of shingles does a 6×10 lean-to roof take?

3 bundles of 3-tab shingles, including the starter course, for a 3/12 roof of about 81 sq ft with 8 in eaves and 4 in rakes. Below 4/12 the felt goes on in a double layer, and one 400 sq ft roll of 15 lb felt covers it.

Is there a 6×10 lean-to shed plan with a material list?

Yes. The 3DSHEDPLANS 6×10 lean-to shed plan PDF has its own printable material list for its layout. This page is a free list for a freestanding 6×10 lean-to on skids, so use the plan's list if you build the plan exactly.