Shed Door Replacement — Site-Built or Purchased Door
The shed door drags on the ground, the bottom is rotted out, and the hasp does not line up anymore. We build or hang a new door and fix the jamb it hangs on.
Shed door replacement is a half-day job that most contractors will not come out for. JMB Builders does it across the Twin Cities metro: we build a Z-brace door on site to fit the opening, or hang a purchased shed door if one fits, rebuild the rotted jamb and threshold, and set the hinges and hasp so it swings, closes and locks. Priced per door, quoted from photos within one business day.
- Priced per door
- Site-built Z-brace door or a purchased door, whichever fits
- Rotted jamb and threshold rebuilt
- Quote from photos in 1 business day
- Licensed MN contractor BC809005
Shed doors fail the same way every time. They are built from thin plywood or T1-11 with no real frame, hung on two small hinges, and set so the bottom edge sits on the ground. The bottom rots, the door sags on the hinges, the corner drags, and the hasp stops lining up. Then someone lifts the door to close it a few hundred times and the hinge screws pull out of the jamb.
Shed doors are odd sizes, so a door off the shelf rarely fits. The fix that lasts is a door built on site to the opening: a frame of exterior lumber with a diagonal brace, sheathed in the same siding as the shed or in exterior plywood, with a solid rail where the hinges and hasp mount. It gets hung on strap hinges or heavy T-hinges screwed into solid jamb wood, with a threshold that keeps the door bottom up off the ground.
When the opening is a standard size, a purchased steel or fiberglass shed door can be the better choice, and we hang it the same way we hang an entry door. Either way the door goes in primed or matching the shed siding. Painting is quoted as a separate line, or paint it yourself.
What you supply
- Photos: the door from outside, the hinge side of the jamb, the bottom of the door and threshold, and the inside of the door
- Rough width and height of the opening, jamb to jamb
- Whether you want the new door to match the shed siding or be plain exterior plywood
- The lock or padlock you want on the hasp, or we bring a standard hasp
What JMB supplies
- Removal and haul-away of the old door and any rotted jamb or trim
- A site-built Z-brace door in exterior lumber, sheathed to match the shed, or a purchased shed door when a standard size fits
- Jamb rebuilt in treated lumber where the old wood is soft, with new stop molding
- A treated threshold that keeps the door bottom up off the ground
- Heavy T-hinges or strap hinges, a hasp, and a cane bolt or slide bolt on a double door
- Weatherstrip or a sweep when the shed is used for storage that needs to stay dry
- Photos of the finished door in your job folder
- Painting the door and jamb when you want it done, quoted as its own line
How it is priced: per door
Quoted in writing from your photos within one business day. What moves the number:
- Single door vs. a pair of doors that meet in the middle
- Site-built door vs. a purchased door, and whether the opening has to be sized to fit it
- Jamb and threshold in good shape, or rebuilt in treated lumber
- Sheathed to match the shed siding vs. plain exterior plywood
- Hardware: standard T-hinges and hasp, or heavier strap hinges and a keyed lock
- Whether the shed floor or the framing around the door needs repair too
Send the jamb-to-jamb width and height with the photos and the quote covers the door, the jamb repair and the hardware, no allowances.
How long it takes
One site-built door with a jamb repair: half a day. A pair of doors: most of a day. Painting is quoted as its own line.
How your project works
- 1
Send photos, get a written quote
Send three photos of the space and a sentence about what you want. You get a clear, itemized quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.
- 2
Pick materials, or bring your own
We help you choose profiles and materials that fit the house and the budget, or match your existing millwork exactly — or you buy the door or trim yourself and we install it. Everything is confirmed before the crew is scheduled.
- 3
Clean, precise installation
The crew shows up on time, protects floors and furniture, and installs with tight joints and consistent reveals. Photos of the finished work go in your job folder.
- 4
Walkthrough and invoice
We walk the finished work with you. If anything is not right, we fix it before we call the job done. Then one invoice, paid by check or direct deposit — no card fees, no payment links.
Situations and options
Site-built Z-brace door
A frame of exterior lumber with a diagonal brace running from the bottom hinge corner up to the latch side, sheathed in exterior plywood or the same siding as the shed. Built to the exact opening, so it fits even when nothing off the shelf does.
Purchased shed door
When the opening is a standard size, a steel or fiberglass shed door with its own jamb goes in. It seals better, locks with a keyed knob, and is the right choice for a shed with power tools or anything you want to keep dry.
Double doors
A pair built to meet in the middle, with an astragal so they overlap, a cane bolt to hold one door, and a hasp across both. Common on sheds that hold a mower or a wheelbarrow.
Jamb and threshold rebuild
The door is fine but the jamb it hangs on is soft and the hinge screws spin. We cut the rotted jamb wood out, replace it with treated lumber, add a treated threshold, and re-hang the door with longer screws into the new wood.
Shed Door Replacement — Site-Built or Purchased Door: questions, answered
Can you build a shed door instead of buying one?
Yes, and for most sheds it is the better choice. Shed openings are rarely a standard door size, so a store-bought door either does not fit or leaves gaps. We build a Z-brace door on site to the exact opening: a frame of exterior lumber, a diagonal brace so it cannot sag, and a skin of exterior plywood or the same siding as the shed. It hangs on heavy hinges into solid jamb wood.
Why does my shed door sag and drag on the ground?
Two reasons, usually both. The door has no diagonal brace, so it racks under its own weight and the latch corner drops. And the hinge screws are short and driven into thin or rotted jamb wood, so the hinge side pulls loose. A door with a proper Z-brace and hinges screwed into solid wood does not sag. A threshold that keeps the bottom edge off the ground keeps it from rotting and dragging.
Can you replace just the rotted bottom of a shed door?
Sometimes, but it is rarely worth it. A shed door that is rotted at the bottom is usually thin plywood with no frame, and cutting the bottom off and adding a new piece leaves you with the same weak door a little shorter. A new site-built door costs about the same in labor and lasts. If the door is a solid purchased unit and only the bottom rail is soft, we can splice it.
What kind of hinges should a shed door have?
Heavy T-hinges or strap hinges, sized to the weight of the door, with screws long enough to reach solid wood in the jamb. Small butt hinges like an interior door are what most sheds come with and are why the doors sag. On a double door we add a cane bolt into the floor or threshold on one leaf so the hasp has something solid to pull against.
Can you make the shed door lock?
Yes. A hasp with a padlock is the standard on a site-built door, mounted through the door into the frame rail so it cannot be pried off. On a purchased steel shed door we install a keyed lockset like an entry door. Tell us what you keep in the shed and we will suggest which one makes sense.
Does a new shed door come painted?
A site-built door goes in primed, or in the same siding as the shed so it takes the same finish. A purchased steel door comes primed from the factory. Painting is quoted as a separate line, or leave it primed and paint it yourself. If you want it to match the shed, send a photo of the siding color with the door photos.
Get a written quote for this job
Three photos and a sentence is enough. You hear back within one business day. Or text the photos to 763-204-2099.
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Read morePage reviewed September 24, 2026 · JMB Builders LLC, MN license BC809005 · All exterior trim pages
Where we work
Exterior trim near you
Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: