Bifold Door Dimensions

Stacy Randall
by Stacy Randall

Bifold doors are popular choices for reach-in closets and pantries and for larger openings between rooms. They come in a variety of styles and sizes, so you can typically find what you need in standard sizes. But if standard bifold door dimensions don’t fit your space, custom sizes are also available.

The standard sizes of bifold doors are 24, 28, 30, 32, 36, and 48 inches wide. Most are 80 inches tall, but you can also find some standard heights between 78 and 96 inches tall. A 24-inch wide bifold door would typically feature two 12-inch panels (or leaves). A 48-inch wide would feature two 24-inch leaves.

You need to consider the width of each individual leaf when deciding on the right size and style of bifold door. Then, it’s all about choosing options that will fit in your doorway. For example, will you get double or triple panel doors or something larger?

Standard Bifold Door Sizes

A bifold door is two panels hinged together to create one door. You might see one bifold door in a small doorway. For example, a bathroom or small pantry might use a single bifold door.

However, you would use two bi-folds in a larger opening, like a bigger closet or separating two rooms. This would be a double bi-fold door setup. Double bi-fold doors are popular for many applications.

You can find the following standard sizes of bifold doors at places like Home Depot, Lowe’s, or other home improvement stores. The most popular options are 24, 28, 30, 32, and 36 inches wide and 80 inches tall. But there are many more choices you can consider for your space.

Ready-Made Common Bifold Door Sizes

The most common bifold door height is 80 inches. Therefore, you will find a lot of different widths available at this height.

Note that the width of the doors is a rounded-up figure to make labeling easier. The actual measurement is usually .25 to .5 inches smaller, so a 36” wide door is more likely 35.5 inches wide, etc.

  • 18” x 80” (two 9-inch panels)
  • 24” x 80” (two 12-inch panels)
  • 28” x 80” (two 14-inch panels)
  • 30” x 80” (two 15-inch panels)
  • 32” x 80” (two 16-inch panels)
  • 36” x 80” (two 18-inch panels)
  • 48” x 80” (two 24-inch panels)

Double-Door Sets of Bifold Doors

You’ll also find bifold doors sold in sets of two that can handle larger openings. These configurations can accommodate the following spaces (along with average dimensions for the panels/doors).

  • 48” x 80” (two 24-inch doors, total of four 12” panels)
  • 54” x 80” (two 27-inch doors, total of four 13.25” panels)
  • 59” x 80” (two 29.75” doors, total of four 14.5”)
  • 60” x 80” (two 30” doors, total of four 15” panels)
  • 66” x 80” (two 33” doors, total of four 16.25” panels)
  • 71” x 80” (two 25.5” doors, total of four 17.5” panels)
  • 72” x 80” (two 36” doors, total of four 18” panels)
  • 96” x 80” (two 48” doors, total of six 23.75” panels)

Triple-Door Sets of Bifold Doors

You can also find even wider sets that are comprised of three or more doors. These configurations are ideal for larger closets.

  • 78” x 80” (three 26” doors, total of six 12.75” panels)
  • 84” x 80” (three 28” doors, total of six 13.75” panels)
  • 90” x 80” (three 30” doors, total of six 14.75” panels)
  • 102” x 80” (four 25.5” doors, total of eight 12.75” panels)
  • 108” x 80” (four 27” doors, total of eight 13.5” panels
  • 120” x 80” (four 30” doors, total of eight 14.75” panels)
  • 144” x 80” (four 36” doors, total of eight 17.75” panels)

You will also find many of these same widths at heights of 78”, 79”, 81”, 83”, 84”, and 96”. For example, you can get a 24” wide door anywhere from 78 to 84 inches tall or 96 inches tall. These taller options are great for rooms with higher ceilings that might feature taller door frames.

What Is The Smallest Size Bifold Door?

The smallest standard-size bifold door you can find is 18 inches, comprising two 9-inch panels. However, if you need something smaller, you can always order custom-size bifold doors.

This small size would likely be for something like a narrow closet or pantry where there’s limited space for the outswing. In other words, when you open the door, you don’t have enough room for 18 inches. An 18-inch bifold reduces the outswing to 9 inches.

What Size Opening Do I Need For Bifold Doors?

Your unfinished rough opening would be slightly larger than your doors to allow for framing, the track, etc. Typically, the rough opening should be two inches taller than your doors and two inches wider.

So, if you have a 36” x 80” door, you need an unfinished rough opening of 38” x 82”. However, you’re likely working with a finished opening, which is approximately ½ to ¾” larger than the doors. So for the same set of doors, you’d likely have a finished opening of 36” x 80.75”.

If you are unsure what size door you need, it’s best to consult a pro for measurements. You certainly want to be sure of your dimensions if you plan to order custom-size doors.

How To Measure For Bifold Doors

Measuring for bifold doors is relatively easy to do. You can get the numbers you need in three easy steps.

Step One: Make Sure The Opening Is Level

Before you measure your opening, make sure it’s square. You can do this easily by measuring the diagonals to see if they match. So, measure from the top left corner to the bottom right, then from the top right to the bottom left.

If these two numbers are equal, your opening is level. If it isn’t, you might want to consult with a professional to square up your opening before installing doors.

Step Two: Measure The Opening Height

It’s important to take several measurements to determine the size door you need instead of relying on one singular number. Therefore, take three measurements from the top to the bottom of the opening.

Do one in the middle, one on the right side of the opening, and one on the left. Make a note of all the numbers, but you will use the smallest one to figure out your door dimensions. Deduct a ½-inch from your smallest height measurement to account for the necessary room for the door to fit.

Step Three: Measure The Opening Width

To determine the width of your doors, you also need three different measurements. Measure from left to right across the opening’s top, bottom, and center. Once again, use the smallest number and subtract a ½-inch to obtain the necessary width of your bifold doors.

Are Bifold Doors Trimmable?

Sometimes, your opening might be slightly too small to fit a standard door but not small enough to go down a size. Luckily, you can cut up to ¼ of an inch from each side of a bifold door if you need to adjust the width.

Place painter’s tape along the side you plan to cut, and use a table saw or circular saw to trim the door. Obviously, be very careful with your measurements and markings so you can get a straight cut. Foolow the popular advice; measure twice, cut once.

After cutting, sand the rough edges, and paint them. Likewise, you can shave a little bit off the height of your door to account for thick carpeting or flooring. However, check your door first, as many bifold doors feature an adjustable height option.

Check the bottom of the door for a pivot you can raise to lift the door. If you still can’t get it high enough, you can trim it. Remove the door, and place painter’s tape along where you plan to cut. Cut the door from the back, sand the edge, and paint.

Can I Get Custom Size Bifold Doors?

It’s possible to order custom sizes for your bifold doors. So, if you have a uniquely sized opening, this might be your only option. Talk with contractors or builders in your area or get recommendations for custom door companies. Or, you can choose an alternative to bifold doors for your particular opening.

Shop around to get a few prices, so you have some options. Keep in mind that once your doors are made, you likely can’t return them.

When you buy standard doors at a place like Lowe’s, you can typically return them easily. (As long as you haven’t altered them in some way.)

But with custom doors, they usually come with a no-return policy. Unless, of course, they don’t fit because of a mistake on the manufacturer’s part. But if the measurements you supplied were incorrect, you are probably stuck with them.

Your best bet to get some money back is to sell them secondhand on a place like Facebook Marketplace, etc.


You can find bifold doors in many different styles and sizes, from single doors to double and triple sets. The most common sizes for bifold doors are 80 inches tall and 24, 28, 30, 32, and 36 inches wide. However, you can also find doors as small as 18 inches wide or larger at 48 inches wide.

They also come in other heights, ranging from 78 to 96 inches. If you have a larger opening to accommodate, you can purchase double or triple sets of doors. These sets can fit openings as large as 144 inches.

If you have smaller or larger openings to work with, you could also consider custom size bifold doors. These will typically be more expensive, and you likely won’t have an option to return them. Therefore, make sure you are completely confident of your dimensions before ordering custom sizes.

Stacy Randall
Stacy Randall

Stacy Randall is a wife, mother, and freelance writer from NOLA that has always had a love for DIY projects, home organization, and making spaces beautiful. Together with her husband, she has been spending the last several years lovingly renovating her grandparent's former home, making it their own and learning a lot about life along the way.

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