Bi-fold Door Installation Step-by-Step Guide

A bi-fold door is a door that has two panels that fold together, allowing one to pass through a doorway with a much-reduced footprint.

Installation is a breeze with bi-fold doors. The panels simply fold together and fit snugly against the door frame. There is no need for additional hardware. Here is the complete guide of the bi-fold door installation step-by-step.

Measurementa men taking horizontal measurements

Doors come in all shapes and sizes, and it’s important to make sure you select the right size doors for your opening. Bi-fold doors are a great option for openings that are wider than standard doors, but you’ll need to take accurate measurements to ensure you order the correct size. To measure the width of the door opening, start at the inside edge of the trim and measure to the inside edge of the other trim. Keep in mind that you’ll need to allow for clearance when the doors are open, so be sure to add a few inches to your measurement. With accurate measurements, you can be confident you’re ordering the right size bi-fold doors for your opening.

Locate the Studs on the Wall

When hanging a door, it is important to first identify the studs in the wall. These are the vertical support beams that provide stability to the wall and can provide a secure anchor point for the door. To find the studs, start by tapping on the wall with your hand. When you hear a solid sound, that indicates the presence of a stud. Once you have located the studs, use a pencil to mark their location. This will help you to avoid accidentally drilling into any electrical wiring or other hidden hazards. With the studs marked, you can now proceed with installing your door.

Drill Pilot Holes into the Marked Studsa men drilling a hole in a wall

Drilling pilot holes into each of the marked studs is an important step in ensuring that your screws will stay securely in place. First, use a drill bit that is slightly smaller than the diameter of your screw. This will create a hole that is the perfect size for your screw to fit snugly into. Next, insert the drill bit into the power drill and carefully align it with the mark on the stud. Slowly drill into the stud until the depth of the hole is equal to the length of the screw. Finally, insert the screw into the hole and tighten it in place. Repeat this process for each of the marked studs to ensure a secure and stable attachment.

Hang the Doors

Hanging a door is a relatively simple process, but it’s important to do it correctly in order to ensure that the door hangs properly and functions as it should. The first step is to insert the hinges into the pre-drilled holes on each side of the door opening. Once the hinges are in place, you’ll need to align the door with the opening, making sure that the gaps between the door and the frame are even. Once you’re happy with the position of the door, you can use screws or nails to attach the hinges to the frame. Finally, make sure that the door is properly aligned with the frame and that it opens and closes, folds & slides smoothly. With a little bit of care and attention, hanging a door is a fairly straightforward task.

Close & Adjust the Doors LevelClose & Adjust the Doors Level

The first step is to close the door and check that it’s level. Then, use a screwdriver to loosen all of the screws on the door. Next, adjust the door until it’s level, then retighten all of the screws. Finally, check that the door is still level and that all of the screws are tight. If the door isn’t level or if any of the screws are loose, repeat these steps until it is. Once you’ve done this, your doors should be level and your home will look great!

Apply a Coat of Paint

against weathering. Paint acts as a barrier against the elements, helping to prevent moisture and UV damage. In addition, paint can help to hide imperfections on the surface of the material. However, paint is not always the best option. If the material is already damaged, applying a thick layer of paint may only serve to further trap water and hasten the deterioration process. In such cases, it may be better to apply a sealant. Sealants provide a protective barrier against moisture and other environmental factors without changing the appearance of the material. As a result, they can help to prolong the life of a wide variety of materials, from outdoor furniture to driveways.


Now that you know how to install bi-fold doors, you can tackle this project on your own (or with a friend). Just make sure to measure the door opening width correctly and that you locate the studs in the wall so that you can attach the hinges properly. And don’t forget to give the finished product a coat of paint or sealant to protect it against weathering!

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