DIY 14x14 Lean-To Storage Shed Plan

The full plan is $19.99: buy the 14×14 lean-to shed plan. To see the drawing style first, open the free 14×14 lean-to shed plan PDF. The plan includes a detachable ramp over the 9 3/4″ deck step, so a mower or a wheelbarrow rolls straight in.

14×14 lean to shed plans: the numbers for a site check

Before any stake goes in, the plan has you call 811 a few working days ahead so the buried power, gas and water lines get marked (the call is free). Then you stake the corners and move one stake until both diagonals read 19′ 9 9/16″. The pad runs a foot past the shed on every side so rain drains away.

The roof is deeper than it is wide: it runs 15′ 9 1/2″ from front to back to the fascia, so check the drip line at the back against fences and property lines, not just the walls. The whole roof drains to the low back edge.

What fits inside the 14×14 lean-to shed

The plan includes a fit drawing seen from above. Inside the walls the shed is 13′ 5″ wide, and clear height under the plates is 6′ 2″ at the back and 9′ 7 1/8″ at the front.

• Riding mower. A 42 in deck mower is 4′ 7 3/16″ x 5′ 10″ and parks nose in. With both leaves open the door is about 5′ 11 1/2″ clear, which leaves 8 1/8″ on each side of that deck. A 48 in deck fits with its deflector raised. A 54 in deck does not.
• Aisle. A 5′ 6″ aisle stays between the mower’s nose and shelves along the back wall. Keep those back shelves below the window sill, 2′ 8 1/2″ above the deck.
• Side shelves and bikes. Shelves 16″ deep fit along the back 6 ft of each side wall. Two bikes with staggered handlebars take 2′ 6″ x 5′ 10″.
• Outside the door. The detachable ramp is 6′ 9″ wide and projects 3′ 6″ at a 1:6 slope. Keep 9′ 6″ level and clear from the front wall so the mower can line up with it.

How the 14×14 lean-to shed goes together

A square base, no splices

Every skid, rim and floor joist comes from a 14 ft board, so nothing in the base is spliced. The five skids run left to right, parallel to the front wall, 3′ 5 1/8″ on center, with the front and back rims sitting on the outer two. The 12 joists are 13′ 9″ long. A square shed racks easily, so the plan has you build the floor frame in place (it weighs about 420 lb) and push it until both diagonals read 19′ 9 9/16″ before you fasten it. Seven sheets of plywood cover the deck, with the last row ripped to 2′ 1 1/2″.

How the walls go up

Book a third person for the front wall. Each wall is framed flat on the deck, tipped up as a bare frame and braced. Siding waits until all four stand.

• Stop blocks first. Where a wall tips up at the deck edge, two 12″ 2×4 stop blocks go on the outside of the rim, their tops 2″ above the deck, so the bottom plate cannot kick out. The tall front wall also gets stop posts, so it stops at plumb.
• Hinge it. Tack two or three nails part way through the bottom plate into the deck, so the wall pivots on that edge instead of sliding.
• Three on the front wall. Two people hold the end studs against the posts while the third sets the braces about 7 ft up, where you can reach them from the deck.
• Stay clear. Nobody stands on the ground in front of a wall while it goes up. Pick a calm day, because a bare frame catches wind like a sail.
• Twist straps. A lean-to side wall has no level plate to lap, so a metal strap ties each of the four corners.

Cutting the sloped side walls

The side walls follow the roof line, so every stud in them is different: 12 studs from 6′ 2 3/8″ at the back up to 9′ 6 3/16″ at the front. Each top gets a 14.0 degree bevel. A sloped wall has unequal diagonals, so the plan squares it on a rectangle instead: mark both end studs 6′ 0″ up and make the two diagonals match at 14′ 8 1/8″. The front wall’s 11 studs are 9′ 5 5/8″, so they come from 2×4 x 10 ft boards.

What is on the 14×14 lean-to shed material list

The shopping list is split by stage, in the stock lengths that waste the least:

• Foundation and floor: five 14 ft pressure-treated 4×4 skids, 14 pressure-treated 2×6 x 14 ft boards for the rims and joists, and 7 sheets of tongue and groove plywood. The pad frame takes four 4×6 x 10 ft and three 4×6 x 16 ft pressure-treated boards, 32 rebar stakes and 16 timber spikes.
• Walls: 2×4 studs and plates, a doubled 2×8 door header and a doubled 2×6 window header, plus 16 sheets of T1-11 in 4×8, 4×9 and 4×10 sizes. If your store has no 4×9, buy 4×10 and cut it down.
• Roof: 14 2×8 x 18 ft boards for the rafters and fly rafters, 2×8 blocking, 9 sheets of OSB, 2 rolls of 15 lb felt, 9 bundles of shingles and 8 pieces of drip edge.
• Door, window and trim: 2 new T1-11 sheets for the door leaves, 6 T-strap hinges, a handle and latch, 2 barrel bolts, 2 door sweeps, the prefabricated window, 1×10 fascia, 1×4 casing and corner trim.
• Ramp: two pressure-treated 2×10 x 8 ft boards for the stringers, eight 2×6 deck boards, a 2×4 ledger, 2 hook-and-eye latches and anti-slip grit tape.
• Hardware: nails by the pound, 20 hurricane ties, 4 framing angles for the end rafters, 4 twist straps, 6 ground anchors with straps, adhesive, flashing tape, drip cap, insect screen and 5 gallons of paint.

The longest boards on the list are the 18 ft ones: the 2×8 rafters and the two 1×10 rake fascia boards. The plan says to ask the yard to deliver.

How the 14×14 lean-to roof is framed

A single-slope roof has no ridge and pushes nothing outward, so no rafter ties cross the shed. Hurricane ties on every rafter hold it down, and the two end rafters get framing angles.

• Why 2×8. The plan says span tables call for 2×8 over the 13′ 5″ clear span at 16″ on center, in #2 spruce-pine-fir or Douglas fir-larch at 30 psf ground snow. Ask your local permit office for your area’s snow load.
• Two birdsmouths. Each rafter hooks over both walls with a 3 1/2″ level seat and a 7/8″ plumb heel, only about 12% of a 2×8’s depth. Never cut deeper than one third.
• Pattern first. Each rafter is cut from an 18 ft board to 16′ 3 5/8″. Check the walls first: 13′ 8 1/2″ level across at both ends and the middle. Then cut one pattern, test it on both walls and cut the rest.
• Two to lift. Each rafter weighs about 40 lb and is longer than the room, so two people feed it in through the door.
• Blocking. 2×8 blocks, ripped to 6 1/2″ tall so they stay under the sheathing, fill the bays over each wall, with 1″ vent holes.
• Low pitch, double felt. At 3/12 the shingle makers ask for two layers: a 19″ starter strip, then 36″ courses lapping 19″ (Asphalt Roofing Manufacturers Association). The shingles go on at 5″ exposure, about 216 in all.

Free 14×14 lean-to plan PDF vs the full plan

The free PDF is 7 pages. It walks through the five stages with 3D views, so you can see the drawing style and the finished square shed. The full 72-page plan adds the shopping list, the cut list, the cutting plan, every stud position table, the sloped stud lengths, the rafter marks, piece maps for the deck, siding and roof sheathing, the door build with Z braces, the ground anchors and the ramp. Its own check list covers 86 measurements, and all of them pass.

Before you build a 14×14 lean-to shed

• Permits. At 196 sq ft and 11′ 6 5/8″ at the high edge, size, height and setback rules matter, and they vary by town and HOA. Check your local permit office before you buy lumber.
• Snow and wind. Snow sits longer on a 3/12 roof. The plan puts in 6 ground anchors, 3 along each outer skid. In heavy snow or high-wind areas you may need closer rafter spacing, larger rafters or more anchors; check your local permit office.
• Skids. Use ground-contact rated pressure-treated 4x4s (UC4A or higher), set crown up, and shim a low skid with gravel or treated shims only.
• Keep it dry. Leave 6″ or more between the siding and the soil or mulch.
• Materials. Store lumber flat and covered, since wet wood decays faster (USDA Forest Products Laboratory Wood Handbook). Check the stamp on each OSB sheet for its span rating (APA: OSB).

Tools and ladders the plan lists

Beyond a circular saw, drill/driver and framing hammer, the list adds a miter saw for the door braces and trim, a reciprocating saw for flush cuts, a 3 lb sledge for the pad and brace stakes and a hand tamper for the gravel. Two 8 ft step ladders cover the walls and rafters, or rent a rolling scaffold tower for the front eave. A 20 ft extension ladder handles roof work at the high edge, about 11′ 7″ up.

Related plans

• 2 ft shallower: the 12×14 lean-to shed plan.
• 2 ft longer: the 14×16 lean-to shed plan. 6 ft longer: the 14×20 lean-to shed plan.
• Similar size with a gable roof: the 12×14 gable shed plan.
• Choosing a base first? Read the shed foundation guide.
• Every size on the lean-to shed plans page.