Folding Doors | Bifold Doors

Folding doors, also known as bifold doors, are a type of door system that consists of multiple door panels hinged together in a way that allows them to fold up neatly when opened. These doors use a physics principle called leverage, where the force applied to one end of the door is transmitted through the hinges to the other end, resulting in a smooth, effortless motion. The panels are typically made of materials such as wood, metal, or glass, and are designed to fit into a single door frame. Folding doors are commonly used in areas with limited space, where they can provide a large opening to outdoor areas, and are a popular design choice for modern homes due to their functionality, energy efficiency, and aesthetic appeal.

Bifold doors have a rich history dating back to the ancient Roman times, where they were commonly used in buildings such as bathhouses and villas. In the 19th century, bifold doors began to gain popularity in Europe, particularly in France, where they were used in the construction of homes and commercial buildings. With the introduction of modern materials such as aluminum and glass, bifold doors have become more energy-efficient, durable, and versatile. In recent years, the popularity of bifold doors has increased significantly due to their ability to create a seamless connection between indoor and outdoor spaces, and their stylish and functional design.

Are bifold doors thermally efficient?

Bifold doors can be thermally efficient when made with appropriate materials such as low-emissivity (low-e) glass, insulated frames, and thermal breaks. Low-e glass can help to prevent heat loss in winter and heat gain in summer, while insulated frames and thermal breaks help to reduce heat transfer. Proper installation and weather-stripping can also help to enhance the thermal efficiency of bifold doors.

What are common problems possible with folding doors?

Common issues with bifold doors include misalignment, wear and tear on hinges and tracks, difficulty in opening or closing, and air leaks. These issues can be caused by various factors such as poor installation, improper maintenance, and natural wear and tear over time. Regular maintenance and timely repairs can help to prevent these problems and prolong the lifespan of bifold doors.

Are folding exterior doors secure?

Yes, folding exterior doors can be secure when installed properly and with appropriate hardware. Many bifold doors come with multipoint locking systems that make them more secure than traditional doors. Additional security features, such as laminated glass, can also be added to enhance the overall security of bifold doors.

* Under Development *

Related Tags
Folding Doors Guides
Browse through our curated Folding Doors Guides for additional categorizations, tips, details, variations, styles, and histories of Folding Doors. Guides provide additional insights into the unique properties and shared relationships between elements.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
7’3”-10’ | 2.21-3.05 m
27’ | 8.23 m
6” | 15.2 cm
Bifold Exterior Door - 10 Panels
305.000
823.000
15.200
105
https://p3d.in/e/7YPob
GUIDE
3D
Bifold Exterior Door - 10 Panels3D model of a Bifold Exterior Door (10 Panels) viewed in perspective3D model of a Bifold Exterior Door (10 Panels) viewed in perspective
7’3”-10’ | 2.21-3.05 m
27’ | 8.23 m
6” | 15.2 cm
Bifold Exterior Door - 10 Panels, Split
305.000
823.000
15.200
100
https://p3d.in/e/F0k3Q
GUIDE
3D
Bifold Exterior Door - 10 Panels, Split3D model of a Bifold Exterior Door (10 Panels, Split) viewed in perspective3D model of a Bifold Exterior Door (10 Panels, Split) viewed in perspective
7’3”-10’ | 2.21-3.05 m
5’8”-7’8” | 1.73-2.34 m
6” | 15.2 cm
Bifold Exterior Door - 2 Panels
305.000
234.000
15.200
105
https://p3d.in/e/jdhkm
GUIDE
3D
Bifold Exterior Door - 2 PanelsPerspective view of a 3D model of a Bifold Exterior Door (2 Panels)Perspective view of a 3D model of a Bifold Exterior Door (2 Panels)
7’3”-10’ | 2.21-3.05 m
8’4”-11’4” | 2.54-3.45 m
6” | 15.2 cm
Bifold Exterior Door - 3 Panels
305.000
345.000
15.200
105
https://p3d.in/e/OuH20
GUIDE
3D
Bifold Exterior Door - 3 PanelsView of a Bifold Exterior Door (3 Panels) in 3D available for downloadView of a Bifold Exterior Door (3 Panels) in 3D available for download
7’3”-10’ | 2.21-3.05 m
8’4”-11’4” | 2.54-3.45 m
6” | 15.2 cm
Bifold Exterior Door - 3 Panels, Split
305.000
345.000
15.200
100
https://p3d.in/e/G1Q9G
GUIDE
3D
Bifold Exterior Door - 3 Panels, SplitView of a Bifold Exterior Door (3 Panels, Split) in 3D available for downloadView of a Bifold Exterior Door (3 Panels, Split) in 3D available for download
7’3”-10’ | 2.21-3.05 m
11’-15’ | 3.35-4.57 m
6” | 15.2 cm
Bifold Exterior Door - 4 Panels
305.000
457.000
15.200
105
https://p3d.in/e/lLYJG
GUIDE
3D
Bifold Exterior Door - 4 Panels3D model of a Bifold Exterior Door (4 Panels) viewed in perspective3D model of a Bifold Exterior Door (4 Panels) viewed in perspective
7’3”-10’ | 2.21-3.05 m
11’-15’ | 3.35-4.57 m
6” | 15.2 cm
Bifold Exterior Door - 4 Panels, Split
305.000
457.000
15.200
100
https://p3d.in/e/R5aEC
GUIDE
3D
Bifold Exterior Door - 4 Panels, Split3D model of a Bifold Exterior Door (4 Panels, Split) viewed in perspective3D model of a Bifold Exterior Door (4 Panels, Split) viewed in perspective
7’3”-10’ | 2.21-3.05 m
13’8”-18’8” | 4.17-5.69 m
6” | 15.2 cm
Bifold Exterior Door - 5 Panels
305.000
569.000
15.200
105
https://p3d.in/e/Nvzuh
GUIDE
3D
Bifold Exterior Door - 5 PanelsPerspective view of a 3D model of a Bifold Exterior Door (5 Panels)Perspective view of a 3D model of a Bifold Exterior Door (5 Panels)
7’3”-10’ | 2.21-3.05 m
13’8”-18’8” | 4.17-5.69 m
6” | 15.2 cm
Bifold Exterior Door - 5 Panels, Split
305.000
569.000
15.200
100
https://p3d.in/e/PrX15
GUIDE
3D
Bifold Exterior Door - 5 Panels, SplitPerspective view of a 3D model of a Bifold Exterior Door (5 Panels, Split)Perspective view of a 3D model of a Bifold Exterior Door (5 Panels, Split)
7’3”-10’ | 2.21-3.05 m
16’4”-22’4” | 4.98-6.81 m
6” | 15.2 cm
Bifold Exterior Door - 6 Panels
305.000
681.000
15.200
105
https://p3d.in/e/shM7U
GUIDE
3D
Bifold Exterior Door - 6 PanelsView of a Bifold Exterior Door (6 Panels) in 3D available for downloadView of a Bifold Exterior Door (6 Panels) in 3D available for download
7’3”-10’ | 2.21-3.05 m
16’4”-22’4” | 4.98-6.81 m
6” | 15.2 cm
Bifold Exterior Door - 6 Panels, Split
305.000
681.000
15.200
100
https://p3d.in/e/l9Dxw
GUIDE
3D
Bifold Exterior Door - 6 Panels, SplitView of a Bifold Exterior Door (6 Panels, Split) in 3D available for downloadView of a Bifold Exterior Door (6 Panels, Split) in 3D available for download
7’3”-10’ | 2.21-3.05 m
19’-26’ | 5.79-7.92 m
6” | 15.2 cm
Bifold Exterior Door - 7 Panels
305.000
792.000
15.200
105
https://p3d.in/e/pbAxq
GUIDE
3D
Bifold Exterior Door - 7 Panels3D model of a Bifold Exterior Door (7 Panels) viewed in perspective3D model of a Bifold Exterior Door (7 Panels) viewed in perspective
7’3”-10’ | 2.21-3.05 m
19’-26’ | 5.79-7.92 m
6” | 15.2 cm
Bifold Exterior Door - 7 Panels, Split
305.000
792.000
15.200
100
https://p3d.in/e/y4rgm
GUIDE
3D
Bifold Exterior Door - 7 Panels, Split3D model of a Bifold Exterior Door (7 Panels, Split) viewed in perspective3D model of a Bifold Exterior Door (7 Panels, Split) viewed in perspective
7’3”-10’ | 2.21-3.05 m
21’8”-27’ | 6.6-8.23 m
6” | 15.2 cm
Bifold Exterior Door - 8 Panels
305.000
823.000
15.200
105
https://p3d.in/e/3r1dc
GUIDE
3D
Bifold Exterior Door - 8 PanelsPerspective view of a 3D model of a Bifold Exterior Door (8 Panels)Perspective view of a 3D model of a Bifold Exterior Door (8 Panels)
7’3”-10’ | 2.21-3.05 m
21’8”-27’ | 6.6-8.23 m
6” | 15.2 cm
Bifold Exterior Door - 8 Panels, Split
305.000
823.000
15.200
100
https://p3d.in/e/Fdmgj
GUIDE
3D
Bifold Exterior Door - 8 Panels, SplitPerspective view of a 3D model of a Bifold Exterior Door (8 Panels, Split)Perspective view of a 3D model of a Bifold Exterior Door (8 Panels, Split)
7’3”-10’ | 2.21-3.05 m
23’9”-30’4” | 7.24-9.25 m
6” | 15.2 cm
Bifold Exterior Door - 9 Panels
305.000
925.000
15.200
105
https://p3d.in/e/02s67
GUIDE
3D
Bifold Exterior Door - 9 PanelsView of a Bifold Exterior Door (9 Panels) in 3D available for downloadView of a Bifold Exterior Door (9 Panels) in 3D available for download
7’3”-10’ | 2.21-3.05 m
23’9”-30’4” | 7.24-9.25 m
6” | 15.2 cm
Bifold Exterior Door - 9 Panels, Split
305.000
925.000
15.200
100
https://p3d.in/e/vAMmY
GUIDE
3D
Bifold Exterior Door - 9 Panels, SplitView of a Bifold Exterior Door (9 Panels, Split) in 3D available for downloadView of a Bifold Exterior Door (9 Panels, Split) in 3D available for download
Bifold Exterior Door - 9 Panels, Split
Scale illustration of the Bifold Exterior Door (9 Panels, Split) compared to other size configurations

A bifold exterior door with 9 panels that fold to both sides is a type of door system that consists of nine door panels hinged together, which can be folded in half to open. Each panel is typically divided into smaller sections to enable the door to fold up neatly when opened. Unlike traditional bifold exterior doors, this door has a split design in the middle that separates the left and right door panels, allowing the panels to fold to both sides when opened.

This design creates a large opening, providing easy access to outdoor areas and a seamless connection between indoor and outdoor spaces. When closed, the nine door panels meet in the middle and are secured with a locking mechanism. Bifold exterior doors with 9 panels that fold to both sides offer a functional and stylish solution to enhance the functionality and aesthetic appeal of your home.

The Bifold Exterior Door (9 Panels, Split) is available in a range of panel sizes with widths between 32”, 36”, 40” (81.3, 91.4, 101.6 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (9 Panels, Split) is between 23’9”-30’4” (7.24-9.25 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Pair of dimensioned illustrations of the Bifold Exterior Door (9 Panels, Split) seen in elevation and plan
A bifold exterior door with 9 panels that fold to both sides is a type of door system that consists of nine door panels hinged together, which can be folded in half to open. Each panel is typically divided into smaller sections to enable the door to fold up neatly when opened.

The Bifold Exterior Door (9 Panels, Split) is available in a range of panel sizes with widths between 32”, 36”, 40” (81.3, 91.4, 101.6 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (9 Panels, Split) is between 23’9”-30’4” (7.24-9.25 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Pair of dimensioned illustrations of the Bifold Exterior Door (9 Panels, Split) seen in elevation and plan
Bifold Exterior Door - 9 Panels, Split
Height:
7’3”-10’ | 2.21-3.05 m
Width:
23’9”-30’4” | 7.24-9.25 m
Length:
Depth:
6” | 15.2 cm
Weight:
Area:

Height (Panel): 7’, 8’, 9’, 9’9” | 2.13, 2.44, 2.74, 2.97 m

Width (Panel): 32”, 36”, 40” | 81.3, 91.4, 101.6 cm

Materials
Aluminum, insulating glass

Drawings include:

Bifold Exterior Door (9 Panels, Split) front elevation (various sizes), side view, plan views

Details & Downloads

Downloads

2D Downloads

3D Downloads

Bifold Exterior Door - 6 Panels, Split
Scale illustration of the Bifold Exterior Door (6 Panels, Split) compared to other size configurations

A bifold exterior door with 6 panels that folds to both sides is a door system comprising six door panels hinged together that can be folded in half to open. Each panel is usually divided into smaller sections, allowing the door to fold up neatly when opened. Unlike traditional bifold exterior doors, these doors have a split design in the middle that separates the left and right door panels, enabling the panels to fold to both sides when opened.

This creates a large opening, providing easy access to outdoor areas and a seamless transition between indoor and outdoor spaces. When closed, the six door panels meet in the middle and are secured with a locking mechanism. Bifold exterior doors with 6 panels that fold to both sides offer a practical and stylish solution to enhance the functionality and aesthetic appeal of your home.

The Bifold Exterior Door (6 Panels, Split) is available in a range of panel sizes with widths between 32”-44” (81.3-111.8 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (6 Panels, Split) is between 16’4”-22’4” (4.98-6.81 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Pair of dimensioned illustrations of the Bifold Exterior Door (6 Panels, Split) seen in elevation and plan
A bifold exterior door with 6 panels that folds to both sides is a door system comprising six door panels hinged together that can be folded in half to open. Each panel is usually divided into smaller sections, allowing the door to fold up neatly when opened.

The Bifold Exterior Door (6 Panels, Split) is available in a range of panel sizes with widths between 32”-44” (81.3-111.8 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (6 Panels, Split) is between 16’4”-22’4” (4.98-6.81 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Pair of dimensioned illustrations of the Bifold Exterior Door (6 Panels, Split) seen in elevation and plan
Bifold Exterior Door - 6 Panels, Split
Height:
7’3”-10’ | 2.21-3.05 m
Width:
16’4”-22’4” | 4.98-6.81 m
Length:
Depth:
6” | 15.2 cm
Weight:
Area:

Height (Panel): 7’, 8’, 9’, 9’9” | 2.13, 2.44, 2.74, 2.97 m

Width (Panel): 32”-44” | 81.3-111.8 cm

Materials
Aluminum, insulating glass

Drawings include:

Bifold Exterior Door (6 Panels, Split) front elevation (various sizes), side view, plan views

Details & Downloads

Downloads

2D Downloads

3D Downloads

Bifold Exterior Door - 7 Panels
Comparison drawing of the Bifold Exterior Door (7 Panels) compared to the larger size configurations

A bifold exterior door with 7 panels is a door system consisting of seven door panels hinged together that can be folded to one side when opened. These panels are typically constructed from materials such as wood, fiberglass, or metal and are designed to fit into a single door frame. Each panel is generally divided into smaller sections, enabling the door to fold up neatly for a space-saving solution.

Bifold exterior doors with 7 panels are often used to provide a large opening to outdoor spaces for easy access, while saving valuable room when closed. The seven door panels meet in the middle and are secured with a locking mechanism. Such doors are a practical and elegant option to enhance the functionality and aesthetic appeal of your home.

The Bifold Exterior Door (7 Panels) is available in a range of panel sizes with widths between 32”-44” (81.3-111.8 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (7 Panels) is between 19’-26’ (5.79-7.92 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Scaled set of drawings of the Bifold Exterior Door (7 Panels) in front, side and top views
A bifold exterior door with 7 panels is a door system consisting of seven door panels hinged together that can be folded to one side when opened. These panels are typically constructed from materials such as wood, fiberglass, or metal and are designed to fit into a single door frame.

The Bifold Exterior Door (7 Panels) is available in a range of panel sizes with widths between 32”-44” (81.3-111.8 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (7 Panels) is between 19’-26’ (5.79-7.92 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Scaled set of drawings of the Bifold Exterior Door (7 Panels) in front, side and top views
Bifold Exterior Door - 7 Panels
Height:
7’3”-10’ | 2.21-3.05 m
Width:
19’-26’ | 5.79-7.92 m
Length:
Depth:
6” | 15.2 cm
Weight:
Area:

Height (Panel): 7’, 8’, 9’, 9’9” | 2.13, 2.44, 2.74, 2.97 m

Width (Panel): 32”-44” | 81.3-111.8 cm

Materials
Aluminum, insulating glass

Drawings include:

Bifold Exterior Door (7 Panels) front elevation (various sizes), side view, plan views

Details & Downloads

Downloads

2D Downloads

3D Downloads

Bifold Exterior Door - 5 Panels, Split
Style and size comparison drawing of the Bifold Exterior Door (5 Panels, Split) compared to other size configurations

A bifold exterior door with 5 panels that folds to both sides is a type of door system consisting of five door panels hinged together that can be folded in half to open. Each panel is typically divided into smaller sections, allowing the door to fold up neatly when opened. Unlike traditional bifold exterior doors, these doors have a split design in the middle that separates the left and right door panels, allowing the panels to fold to both sides when opened.

This creates a wide opening, providing easy access to outdoor areas and a seamless transition between indoor and outdoor spaces. When closed, the five door panels meet in the middle and are secured with a locking mechanism. Bifold exterior doors with 5 panels that fold to both sides offer a practical and stylish solution to enhance the functionality and aesthetic appeal of your home.

The Bifold Exterior Door (5 Panels, Split) is available in a range of panel sizes with widths between 32”-44” (81.3-111.8 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (5 Panels, Split) is between 13’8”-18’8” (4.17-5.69 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Set of scaled dimensioned drawings of the Bifold Exterior Door (5 Panels, Split) viewed from the front, plan, and side
A bifold exterior door with 5 panels that folds to both sides is a type of door system consisting of five door panels hinged together that can be folded in half to open. Each panel is typically divided into smaller sections, allowing the door to fold up neatly when opened.

The Bifold Exterior Door (5 Panels, Split) is available in a range of panel sizes with widths between 32”-44” (81.3-111.8 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (5 Panels, Split) is between 13’8”-18’8” (4.17-5.69 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Set of scaled dimensioned drawings of the Bifold Exterior Door (5 Panels, Split) viewed from the front, plan, and side
Bifold Exterior Door - 5 Panels, Split
Height:
7’3”-10’ | 2.21-3.05 m
Width:
13’8”-18’8” | 4.17-5.69 m
Length:
Depth:
6” | 15.2 cm
Weight:
Area:

Height (Panel): 7’, 8’, 9’, 9’9” | 2.13, 2.44, 2.74, 2.97 m

Width (Panel): 32”-44” | 81.3-111.8 cm

Materials
Aluminum, insulating glass

Drawings include:

Bifold Exterior Door (5 Panels, Split) front elevation (various sizes), side view, plan views

Details & Downloads

Downloads

2D Downloads

3D Downloads

Bifold Exterior Door - 8 Panels
Style and size comparison drawing of the Bifold Exterior Door (8 Panels) compared to other size configurations

A bifold exterior door with 8 panels is a door system made up of eight door panels that are hinged together, allowing them to fold to one side when opened. These door panels are typically made of wood, fiberglass, or metal and fit into a single door frame. Each panel is usually divided into smaller sections to enable the door to fold up neatly.

Bifold exterior doors with 8 panels are often used to create a large opening to outdoor areas, while also allowing for a unique and modern design that does not require the panels to meet in the middle. When closed, the eight door panels can be secured with a locking mechanism. Such doors offer a functional and stylish solution to enhance the aesthetic appeal of your home.

The Bifold Exterior Door (8 Panels) is available in a range of panel sizes with widths of 32”, 36”, 40” (81.3, 91.4, 101.6 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (8 Panels) is between 21’8”-27’ (6.6-8.23 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Set of scaled dimensioned drawings of the Bifold Exterior Door (8 Panels) viewed from the front, plan, and side
A bifold exterior door with 8 panels is a door system made up of eight door panels that are hinged together, allowing them to fold to one side when opened. These door panels are typically made of wood, fiberglass, or metal and fit into a single door frame.

The Bifold Exterior Door (8 Panels) is available in a range of panel sizes with widths of 32”, 36”, 40” (81.3, 91.4, 101.6 cm) and heights ranging from 7’, 8’, 9’, 9’9” (2.13, 2.44, 2.74, 2.97 m). The overall installed width of the Bifold Exterior Door (8 Panels) is between 21’8”-27’ (6.6-8.23 m) with an installed height from 7’3”-10’ (2.21-3.05 m). The installed depth is 6” (15.2 cm).

Set of scaled dimensioned drawings of the Bifold Exterior Door (8 Panels) viewed from the front, plan, and side
Bifold Exterior Door - 8 Panels
Height:
7’3”-10’ | 2.21-3.05 m
Width:
21’8”-27’ | 6.6-8.23 m
Length:
Depth:
6” | 15.2 cm
Weight:
Area:

Height (Panel): 7’, 8’, 9’, 9’9” | 2.13, 2.44, 2.74, 2.97 m

Width (Panel): 32”, 36”, 40” | 81.3, 91.4, 101.6 cm

Materials
Aluminum, insulating glass

Drawings include:

Bifold Exterior Door (8 Panels) front elevation (various sizes), side view, plan views

Details & Downloads

Downloads

2D Downloads

3D Downloads

Related Buildings Collections
Buildings