How to Install a Barn Door From Start To Finish

Basics of Indoor Barn Door Installation

An indoor barn door slides on a metal track that is installed over the top of the door frame. Hangers with wheels are attached to the top of the barn door, and these hangers rest on top of the metal track.

Indoor barn doors can be installed singly or in pairs. A single barn door will cover one doorway, and the door slides to either the left or right side when open (a side must be chosen prior to installation). Single doorways tend to measure between 36 inches and 42 inches. A pair of barn doors will cover a space of about 84 inches wide, and the two doors slide outward in opposite directions when open.

With either installation type, there must be enough wall space to the side to accommodate the door when it is in an open position.

What Are Standard Barn Door Sizes?

Barn doors are available in many of the same sizes as other interior or exterior doors. Typically, widths begin at 36”, with 42”, 48”, and 60” widths also being available for single doors. Double doors are designed to fit openings of 60”, 72”, or wider, but you may need a custom set of doors for some styles greater than 72” in width.

For heights, most doors need to be a minimum of 80” to pass code. It is possible to find taller doors as needed, but heights stop being standard after 84”, and you may need to have a door custom made. Remember that barn doors need a header to be installed above the door, which can mean you need additional headroom.


Steps for installing a sliding barn door:

  1. The door in the kit comes untreated, so start by applying a desired stain/finish to the door with a rag.
  2. Attach the mounting board over the opening with 4 inch structural screws. Keep a level on the board and loosely screw the board in until it’s roughly in the right place. Once the board is mostly attached to the wall and level, secure all the screws.
  3. Attach the mounting hardware to the mounting board. Again, only secure the bolts loosely until the entire rail has been attached. Then secure them all with a wrench.
  4. Slide the stops onto the mounting hardware. This will ensure the door doesn’t slide off the rail.
  5. Attach the door hardware to the door and hang it in place on the rail.
  6. With the door in position, put the floor guide in the correct position on the floor to help guide the door from the bottom. Mark its location with a pencil.
  7. Remove the door and secure the floor guide to the floor with the drill and some screws.
  8. Rehang the door. With it in the correct position, make sure it’s perfectly over the floor guide.
  9. Add the anti-jump blocks that come with the kit onto the railing to prevent the door from sliding off the rail.


The majority of the maintenance that a barn door requires is the same as any other door. If the door is wood, for example, it may need to be repainted or stained periodically. Otherwise, the biggest maintenance comes from the track. It should be kept clean and free of debris that could cause the rollers to stop working. It may occasionally need to be oiled, and the door may need to be rehung or repositioned in some cases if the track begins to sag.

How to Install Double Barn Doors

Installing double barn doors works much the same as a single, you just have a longer rail. You will need to measure the rail to get the length for your header. This time instead of lining it up against the trim, it will need to be centered so it hangs over evenly on both sides of the opening.

As mentioned above, you will locate the studs to screw the header into directly on top of the trim (you can adjust this if your doors are taller). Attach the rail to the header following the directions for your hardware. Refer to previous steps for installing the doors.

The Final Details

Hang the door. Aided by a helper, put the heavy door on the track. Unlike swinging doors, which are partially supported by their jambs, barn doors rely solely on their hardware and its connection to the framing. It’s important to correct any weak framing before hanging heavy doors like this one.

Mount the guide. Space the bottom guide from the wall so that it aligns with the track above. One of its two mounting screws is accessible with the door fully open, and the other is accessible when the door is fully closed. This ensures that the door can be removed in the future.

Finish up with casing. Barn-style doors are cased like conventional swinging doors. Secure the inside edge of the casing with 18-ga. brads, then fasten the outside edge with

15-ga. finish nails.

Step 3: Centre railing and pre-drill holes

Take your sealed and painted DAR block and centre the door railing on top of it. We did this outside where it was easier to place the two parts together on a table. Once the door railing is centered over the DAR block, predrill holes into the DAR block using the existing holes in the railing as your guide. This makes it easier to install the DAR block and railing above the door later.

Included hardware
Included hardware

When to Install a Barn Door Indoors

Being an indoor project, a barn door can be installed at any time of year. Because the door trim can interfere with the barn door track, it is helpful if the door is installed before the trim is installed. Install the floor covering before the indoor barn door since a floor guide must be screwed on top of the floor covering.

The 8 Best Barn Doors of 2022 That Slide With Style


  • You can either buy two complete barn door sets (see below for the doors we used), or you can buy two sets of hardware and two door slabs.
  • I also recommend installing “soft close” kits on your hardware. Then you don’t have to worry about anyone slamming the doors!

Barn Door Wall Decor Ideas

We wanted to install a barn door to replace the door leading into our bathroom. Our room has a cottage farmhouse vintage feel so I didn’t want a new door and I wanted it to serve as a focal point and feel more like wall decor.

I turned to Facebook Marketplace and found an antique door for $35. One side had already been stripped but the other side was chippy white paint. Both sides were really cool and perfect for what we were going for!

The guy told me it was 3 feet by 7 feet but he was off on his measurements. When we got the door home it was too short so we had to add a section on to make it long enough.

At first, I was bummed because I thought I would have to paint both sides since the added piece didn’t match the door. But then I decided to just paint a strip of white on the top where the new piece was and see how it looked.

We ended up loving the look! Dipped furniture is really popular right now and so I took that idea and applied it to the door and it worked well! Now it was ready to hang!

Install The Track With A Ledger

Locate the track. Once the jambs are installed plumb and level, use scrap stock for guidance to mark the locations of the head and side casings. In this case, the track must be at least 1⁄4 in. above the top of the head casing.

Mark the holes. A scrap-plywood ledger holds the track while the screw holes are transferred to the wall. The ledger is the width of the head casing plus 1⁄4 in. The end is positioned so that it’s 1⁄2 in. beyond the outside edge of the side casing, which accounts for the wheel stop.

Fasten the track. After drilling the holes with a twist bit, fasten the track to the wall with the supplied hardware. Starting at the center, work toward the ends, where the L-shaped wheel stops are located.

Shopping List

What you need


Step 10: Install floor guides

Install a floor guide at the base of the door by screwing them to the wall. This will hold the door in place and stop it from wobbling around. Make sure you consider the finished height of your door and any floor coverings. Doors Plus have two different types of floor guides so you can find the right option based on your floor type, skirting boards or personal preference.

Note that if you select a grooved floor guide, you will need to cut a groove into your door (the Doors Plus team can do it all for you, so you may want to consider their complete package offering that includes delivery and installation).

That’s how simple it is to add a stylish and on-trend barn door to your home! It’s an easy weekend project and a great way to add interest to an otherwise plain door. Check out the full range of barn doors on the Doors Plus website here.


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