How to Build Shed Doors: Single and Double

To build a shed door, frame the opening first and then make the door to fit what you framed. A single door in a gable shed is a 36 to 48 inch opening in the front wall, framed with two jack studs and a doubled 2x6 header. The door itself is either a ledged and braced door made from boards or a 2x4 frame skinned with plywood or panel siding.

This guide gives you both builds, the sizes the designer frames for 36, 48, 60 and 72 inch openings, and short sections on double shed doors, hinges, latches and replacing a door. The opening comes from the shed designer, and the wall around it is covered in the frame shed walls guide. The door leaf is not in the designer: we say where the advice is a source and where it is general practice.

Shed door plans: two ways to build the leaf

There are two builds that work for a backyard shed, and both need only a saw, a drill and a square. The first is a door of vertical boards held together by ledges and a brace. The second is a wood frame skinned with plywood or the same panel as your siding.

Ledged and braced door

A joiner writing in Make: magazine describes it this way: at least three horizontal ledges on the back of the door, a diagonal brace across them, and as many vertical boards as needed to make the face. It is the simplest wood door there is, and it is the classic shed door.

The brace matters. The same article says the diagonal brace has to point down to the bottom hinge, with the low end flush with the bottom ledge on the hinge side and the top end flush with the top ledge on the latch side. That makes a “Z” when you look at the back. A brace that runs the other way does not stop the latch side dropping.

Make: also says a ledged and braced door lacks some of the strength and stability of a framed one. That is one craftsman’s opinion, not a test, but it is a fair reason to consider the second build for a wide or heavy door.

Framed door with a panel skin

Build a rectangular frame of 2x4s, add a middle rail and a diagonal brace if the door is wide, and fasten a panel over the frame. If the panel is the same one you used on the walls, the door disappears into the wall when it is shut. On the designer’s sheds that panel is T1-11 or engineered wood, and the shed siding guide explains it.

APA says T1-11 is an all-veneer plywood panel with grooves 1/4 inch deep and 3/8 inch wide, 4 or 8 inches on center. Grooves that fall on the face of your door line up with the grooves on the wall only if you plan the panel layout, so lay the panel out before you cut.

Which one to build

Build a ledged and braced door if you want the fewest parts and you like the plank look. Build the framed door if you want it to match the walls, or if the opening is wide. This is our reasoning, not a source: the panel skin is stiff across its face, while a board door depends on its ledges and brace for stiffness.

Shed door size and the opening the designer frames

Pick the opening before you cut a board. The designer accepts a door opening from 24 to 96 inches wide and 60 to 96 inches tall, one or two doors, and starts at 48 inches wide by 78 inches tall. Those are the limits of the tool, not rules for your shed.

What the designer frames

Every opening gets two king studs, two jack studs, a doubled header and cripples above it, and the header plies are cut 3 inches longer than the opening. In the designer’s default 8x10 gable, the 48 inch door on the front wall uses 2 jack studs 76-1/2 inches long, 2 header plies of 2x6 at 51 inches and 3 cripples 2-1/4 inches long above the header.

The table is the designer’s result for a 78 inch tall opening in the front wall of an 8x10 and a 10x12 gable shed. On a gable shed the front wall is a gable end wall. It does not carry the roof, so the designer treats it as non-bearing.

The jack studs are 76-1/2 inches in all eight rows, and the header is a doubled 2x6 in all eight. The cripples change with the wall length because they follow the stud spacing.

Why the header is a doubled 2x6

The designer uses a minimum of 2-2x6 for headers in non-bearing walls. The 2021 IRC, R602.7.4, would allow less: it says load-bearing headers are not required in nonbearing walls, and that a single flat 2x4 may be used for openings up to 8 feet wide if the nailing surface above is within 24 inches. It is the model code, and the locally adopted edition and amendments decide. The designer’s choice is a more generous one, and a doubled 2x6 is easy to nail and easy to cut.

Lean-to sheds are different

On the designer’s lean-to the door is in the tall front wall, and that wall carries the roof. The header is now a real structural member, and the designer checks it. On a 10x8 lean-to, a 2-2x6 header passes at every width from 36 to 96 inches, but the spare margin falls as the opening grows.

At 96 inches the margin is only 4 percent. On the designer’s 12x8 lean-to with 60 psf of snow and a 96 inch opening, it switches to a doubled 2x10 header with a 21 percent margin. These are planning checks by simple-beam bending, not a design, and the lean-to guide covers the roof that loads that wall.

Door height and the wall

The 78 inch default fits the designer’s standard 88-3/4 inch gable wall, the height at which one 4x8 siding panel covers the floor frame and the wall. At that wall the header leaves 2-1/4 inch cripples above a 78 inch opening. An 80 inch opening still works, with 78-1/2 inch jack studs and a warning about a 1/4 inch gap above the header, and 81 inch and taller openings are errors. Raise the wall to 108 inches and a 96 inch door fits, with 94-1/2 inch jack studs.

Single or double doors

A double door is one wide opening with two leaves that open together. The designer draws a pair from 44 inches wide, and a design that asks for 2 doors gets one pair on the front wall, not a second door at the back. Frame one opening of 60 or 72 inches and build the pair to fit it. A 96 inch opening does not fit on the front wall of a shed 96 inches wide, and the designer says so.

You can try any of this in the designer with a 72 inch door, and the 8x10 gable plan lists the framing pieces for the default opening.

How to build a single shed door step by step

Build the door after the walls are framed and sided, so you are measuring a real opening. The designer’s numbers tell you what to expect, but the shed in your yard is what you fit to.

Measure the finished opening

1. Measure width in three places. Take it at the top, the middle and the bottom of the opening, and use the smallest number.
2. Measure height on both sides. Use the shorter side.
3. Check the diagonals. If the two diagonals differ, the opening is out of square, and the door needs to be trimmed to suit the hinge side.

The size of the leaf follows from those numbers. We found no published standard clearance for a shed door, so leave a small margin, and test-fit before you fasten anything to the frame.

Cut and assemble a board door

Board sizes matter for the count. A 1x6 is 3/4 by 5-1/2 inches actual, according to the Southern Pine Inspection Bureau. Six boards cover 33 inches and seven cover 38-1/2 inches, so a 36 inch opening takes seven boards with the outer ones ripped narrower.

1. Lay the boards face down. Put the best faces down on a flat surface, with the boards tight together.
2. Mark and cut the ledges. Cut three ledges from the same board, a little shorter than the door is wide.
3. Fasten the ledges. Put one near the top, one near the bottom and one in the middle, with the brace between the top and bottom.
4. Fit the brace. Sit it on the ledges with the low end at the hinge side, mark where it crosses each ledge, cut it and fasten it.
5. Fasten through the boards. Screw or nail through each board into each ledge and into the brace.

The number of screws or nails is not something we can give as a standard. Fasten every board at every ledge, and use fasteners that are made for outdoor use.

Cut and assemble a framed panel door

1. Cut the frame. Cut two 2x4 stiles and rails to make a rectangle a little smaller than the opening.
2. Add a middle rail and a brace. Fit them between the stiles, with the brace running from the low hinge corner to the high latch corner, as in the board door.
3. Skin the frame. Cut a panel to the frame, fasten it around the edge and at the rails, and use the same fastener type as on the walls.
4. Seal the edges. LP’s shed instructions say to seal every field cut made to a panel. On a door that means all four edges.

Panel siding is a rated product, so read the label. APA says APA Rated Siding can be applied directly to studs without diagonal bracing, but a door leaf is not a wall, and the panel maker’s sheet decides how you fasten it to a frame.

Finish before you hang it

Prime and paint all faces and all edges before you hang the door, and pay most attention to the bottom edge, which soaks up water first. Then hang it and adjust the fit. It is much easier to trim a door that is still on the bench.

Plywood shed door: the cheap DIY version

A plywood shed door is the framed build with a plywood skin. The frame carries the load, and the plywood stops it racking and keeps the rain off. It is the quickest DIY shed door for a beginner, because you cut a rectangle out of one sheet.

Use an exterior-rated panel. T1-11 is a common choice because it matches the walls, but the panel maker decides the thickness and the fasteners, and we have no source that sets a thickness for a door. Trim the edges with strips of the same wood if you want a finished look, and seal every cut.

If any of the frame is pressure-treated, the 2021 IRC, R317.3.1, says to use hot-dipped galvanized steel, stainless steel, silicon bronze or copper fasteners, and R317.1.1 says to treat field cuts on treated wood in the field. That applies to a door made with treated wood.

Building double shed doors

Double shed doors are two leaves in one wide opening, usually 60 or 72 inches. They let you roll a mower, a bike or a wheelbarrow straight in, and they cost you a bit more work in the framing and the hardware.

Frame the opening

Use the designer’s numbers from the table: a 60 or 72 inch opening on a gable shed gets a doubled 2x6 header 63 or 75 inches long and jack studs 76-1/2 inches long. On a lean-to the header carries roof load, and the spare margin is small at 72 inches, so look at the designer’s check line.

Build two leaves

Each leaf is roughly half the opening minus the clearances. Build each as a board door or a framed door, with the brace running from its own bottom hinge to the top of its own latch edge. The two leaves are mirror images, so the two braces climb toward the middle and make a peak where the leaves meet.

The meeting edge

Two leaves meeting in the middle need something to hold them shut. Common practice is to fix one leaf, the inactive one, with a bolt at the top and the bottom, and to have the second leaf overlap it or close against a strip. Lock the active leaf with a hasp or a latch. Which hardware you choose depends on how you use the door, and the maker’s sheet decides the fasteners.

Hinges and latches

The hardware is a short list, and you do not need to spend much. What matters is that it is made for outdoor use and that it is fixed into wood that will hold it.

Hinges

A T-hinge or a strap hinge is the usual pick for a shed. National Hardware describes a 10 inch T-hinge as used for gates, sheds and rustic doors, with offset screw holes to prevent wood from splitting. A hardware seller’s guide says weight and width are the two main considerations, that strap hinges sit on the face without a mortise, and that strap and tee hinges suit light to medium-weight gates.

That last point is worth reading twice. A tall framed door with a panel skin is heavier than a lightweight board door. Long hinge leaves spread the load, a tall or heavy leaf usually gets an extra hinge in the middle, and the maker’s sheet sets the count and the screw size. We do not give a hinge count here because we have no source for one.

Match the hinge finish to the wood. If the door frame is pressure-treated, use the fasteners the 2021 IRC lists: hot-dipped galvanized, stainless, silicon bronze or copper.

Latches

A simple hasp with a padlock, a gate latch or a barrel bolt all work on a shed. Fix the latch to the frame side or the door side so that the screws go into solid wood, not a gap. On a double door, use a bolt on the inactive leaf and a latch on the active one.

Swing in or out

Out is the usual choice for a shed door. An outward swing keeps the floor free and stops the door hitting shelves or a mower, and you do not need to leave room inside. That is general practice, not a code rule for sheds.

An inward swing keeps the leaf out of the weather when it is open, but it eats floor space. If you have a ramp, the door has to clear it, and the shed ramp guide covers how high the ramp sits against the door. If the door opens out, use hinges with pins that cannot be lifted out from the outside, or fasten the pins so they cannot be pushed out.

The designer does not model the swing or a door stop. Draw the arc of the open leaf on paper, and check that it clears the ramp, any steps and the corner of the wall.

Weatherproofing the door

A shed door is the weakest part of the wall for water, and most of the work is at the top and the bottom.

Over the top

LP’s installation instructions for its trim and siding require flashing above all doors and windows, with a 3/8 inch gap above any drip cap flashing that is not caulked. That is a maker’s rule for its own product, and it shows what a good head detail looks like: water is sent out over the siding, not behind it. On a shed, a drip cap over the door head is common practice.

At the bottom

LP recommends 6 inches of clearance between the bottom of its siding and the ground. The door has a similar problem at its bottom edge, so keep the leaf and the threshold clear of soil and standing water. A gravel pad helps, and the gravel shed base guide explains one.

Weatherstripping

A strip of weatherstripping around the door stops drafts and driving rain. We have no source that gives a product or a thickness, and the choice depends on the gap you end up with. Fit it after the door is hung, when you can see where the light comes through.

Replacing a shed door

Replacing a shed door is easier than building one, because the opening already exists. Measure it the way you would for a new build, in three places for the width and on both sides for the height.

1. Check the frame first. Push on the jack studs and the header. If the wood is soft or rotten, fix the framing before you hang anything on it.
2. Take off the old leaf. Support it while you take out the hinge screws.
3. Check the hinge screw holes. Old holes that are stripped will not hold a new hinge. Fill them with glue and dowel or move the hinge.
4. Build or buy the new leaf. Make it to the measurements you just took, and leave a small margin.
5. Hang, test and trim. Hang the door, close it, and mark the tight spots. Plane them on the bench and seal the bare wood.

If you would rather buy a ready-made door or want a Dutch, barn or sliding style, the shed door ideas guide covers styles and how to buy them.

Before you build: permits and next steps

A door is part of the building, and it does not change the permit question, but the size of the shed does. The permit threshold, setbacks and height limits are local, so read our shed permit basics and call your building department before you start.

Once the walls are framed, the how to build a shed guide shows where the door comes in the build order. If you plan a wide opening, try it in the shed designer and open the 10x12 gable plan to see the cut list for the framing around it.