8x8 Shed Plans

Floor framing plan of an 8x8 ft gable shed seen from above: 2 skids, rim joists and 5 joists at 16 in on center, with the door opening marked on the front wall. — The floor frame exactly as the generator draws it for an 8x8 ft gable shed: 2 4x6 skids on the ground, 4 2x6 rim and band joists around the edge and 5 2x6 joists at 16 in on center, for 64 sq ft of floor. The rest of the plan follows the same numbers: 91 pieces in the cut list, 16 build steps, walls 80 in tall, a single door opening 36 in wide by 74 in high and 3 bundles of shingles for 79.6 sq ft of roof.

An 8x8 ft shed is 64 sq ft on a skid floor, the smallest footprint this site supports and the only size available free. Front and back walls run 96 in (8 ft), a single stock length with no splice needed anywhere in the frame.

With a gable roof, each rafter is 59.7 in including a 6 in overhang, short enough to cut from an 8 ft board with room to spare. With a lean-to roof, the back wall frames 14.4 in taller than the front for the roof's single slope, and each rafter runs 103.1 in, still under a 10 ft board.

Two floor skids run the full 8 ft depth with joists on 16 in centers between them. This size is available with a single or double door, and is the only size with a free plan: the Free 8x8 Lean-To Shed Plan is the gable-free, lean-to, single-door version of this exact build.

Want the gable roof, a double door, or a different size entirely? See the Parametric Shed Plan or preview any combination first with the free Shed Material Calculator.

What fits in 64 square feet

An 8x8 holds a push mower, a wall of hand tools on one side, and a bicycle or two with the door swing kept clear. It stops being comfortable as a workshop: a bench along one wall leaves about 5 ft of clear floor, which is enough to stand and work but not to swing an 8 ft board. If a bench is the point of the build, the 10x12 is the first size where the layout stops being a compromise.

What goes under it

Every plan here frames the floor on pressure treated skids, which means the shed can sit on a compacted gravel pad rather than a poured slab. The usual build is 4 in of compacted crushed stone extending about 12 in past the footprint on every side, levelled across the diagonals before the first skid goes down. Solid concrete blocks under the skids at regular intervals keep the timber off standing water. Get this stage level and square and the walls go up without fighting; get it wrong and every later cut fights the error.

Why this is the free size

The 8x8 with a lean-to roof is published free because it is the size where the framing is simplest: every wall plate is a single 96 in board, there is no splice anywhere in the frame, and the single slope roof removes the ridge and the matching rafter cuts. It is the right first build for anyone who has never framed a wall, and the full plan shows exactly what the paid sizes contain.

Check before you order lumber

Two local rules decide whether a size is buildable where you are, and neither is in any plan: the floor area above which your jurisdiction requires a building permit, commonly in the 100 to 200 sq ft range but set locally, and the setback distance from property lines and other structures. Both are answered by a phone call to the building department, and both are cheaper to answer before the timber is on the driveway than after the neighbour asks.

Build sequence that keeps the 8x8 square

Set two string lines for the outside footprint before any lumber is cut. Measure the two sides at 96 in, then measure both diagonals. A square 8x8 layout has diagonals of about 135 13/16 in. If the diagonals differ by more than 1/4 in, move one corner and check again before placing the skids.

Cut and assemble the floor frame first, then sheath it before the walls go up. The floor deck acts as a large square reference surface. Snap or pencil the wall lines on the deck, marking the inside face of each wall plate so the walls land in the same place after they are lifted.

Frame the two long walls on the deck, nail or screw the plates and studs, then lift them with temporary braces fixed to the floor. Add the two end walls after the long walls are standing. Check plumb at both ends of every wall, then measure corner to corner across the top plates. Correct the frame before roof parts are installed, because the roof will lock in any error.

Install roof framing from one end to the other, checking spacing every 3 or 4 rafters rather than waiting until the last one. Sheathing should start from a straight edge, not from a wall that you already know is slightly out of square. If you are using a paid or modified layout, confirm the generated dimensions in shed plans before cutting roof parts in batches.

Tools, layout checks and working tolerances

A small shed does not need heavy equipment, but it does need repeatable measurement. A 25 ft tape, framing square, speed square, chalk line, 4 ft level, circular saw, drill or driver, hammer, clamps and two sawhorses are the practical minimum. A second person is strongly useful for lifting walls, even on an 8x8, because a framed and sheathed wall can become awkward before it becomes heavy.

Item to check	Target figure	Action if outside tolerance
Foundation diagonal	135 13/16 in, both ways	Shift a corner before skids are loaded
Gravel pad level	Within 1/2 in over 8 ft	Add, remove and compact stone, do not shim with loose scraps
Wall plumb	Within 1/8 in over 4 ft	Brace the wall, then fasten adjoining walls
Stud spacing drift	Within 1/8 in at each mark	Reset the next stud, do not carry the error across the wall
Door rough opening	Consistent width top and bottom	Pull the jack studs parallel before header fastening

Mark repeated cuts from a stop block or a story stick, not from the last piece you cut. A 1/16 in marking error repeated across several studs can become a visible gap at a sheathing joint. Keep one tape measure for layout if possible, because two tapes can disagree by a small amount at the hook.

Common mistakes and practical recovery

If the floor is out of square by 1/2 in or less, correct it before sheathing by pulling the long diagonal with a ratchet strap or a temporary diagonal board. Once the floor sheathing is fastened, it becomes much harder to move the frame without damaging edges.

If a wall was built slightly too long, do not force it between the adjoining walls. Check whether the error is in the plate length or in the layout line. A plate that is 1/8 in long can usually be trimmed cleanly. A larger error should be fixed by rebuilding that plate, because forcing it will bow the wall and make siding harder to install.

If the wall is plumb but the top plates do not align at a corner, check for debris under the bottom plate and for a high spot in the floor sheathing. A 1/8 in chip under a wall can show up as a poor roof fit. Loosen the fasteners near the corner, clean the bearing surface, reset the wall and fasten again.

If the door opening racks during wall lifting, brace it before the header and surrounding studs are loaded by the roof. Measure the opening at the top, middle and bottom. If the numbers are not the same, install a temporary diagonal brace across the wall face until the roof sheathing is installed.

Do not cut all roof parts until the first pair or first run has been test fitted.
Do not install siding to hide a wall that is not plumb, because the door and trim will show the problem later.
Do not use the gravel pad to correct a twisted floor after framing, correct the support points under the skids first.

Special cases to plan before cutting

For a tight yard, build the floor and walls in the final location only if you still have at least 24 in of working space on the sides that receive siding or trim. Less than that makes fastening, painting and roof edge work slow. If access is limited on one side, prefinish or preinstall what you can while the wall is still flat.

For a sloped site, step the gravel and block support rather than burying one side of the shed. Wood framing should not be used as a retaining wall. If the grade changes more than about 6 in across the footprint, spend time on the base before ordering materials, because support height affects access, ramp length and door threshold height.

For snow, wind or local fastening requirements, treat the plan as the geometry of the shed, then check the connection rules that apply where it will stand. Tie-downs, anchors and roofing fasteners are local decisions. The general permit and setback questions are also covered in the shed building FAQ.