Glass Walls Windows

Folding Windows

Horizontal accordion-style windows with flexible sizing

  • Accommodate small openings or large walls of windows
  • Available in aluminum, wood, and aluminum clad frames
  • Superior weather performance and energy efficiency

Operable Accordion Window Systems

NanaWall folding windows offer the same design principles as folding glass walls with narrow frames, high performance, and easy operation.

1 / 5
2 / 5
3 / 5
4 / 5
5 / 5
A spacious kitchen with a center island and folding glass windows

Versatile Styling and Finishes

Customize your folding windows with aluminum, wood, or aluminum clad frames. Choose from diverse colors, finishes, and simulated divided lites to personalize or match existing aesthetics.

1 / 2
2 / 2
Modern office lounge with sofas, a table, wooden ceiling, indoor plants, and large folding windows for ample natural light.

Exceptional Weather Performance

Designed with long-lasting durability, NanaWall accordion-style windows offer advanced weather protection and energy efficiency, ensuring year-round comfort in any climate.

1 / 4
2 / 4
3 / 4
Generation 4 folding glass window
4 / 4

Smooth Operation and Durability

Alongside smooth, single-handed operation, our folding windows meet or exceed industry standards for air infiltration, water penetration, structural performance, and forced entry.

1 / 6
2 / 6
3 / 6
4 / 6
5 / 6
NanaWall at Needham House, showcasing wood-framed folding glass walls with thermal insulation, custom finish, and indoor-outdoor flow
6 / 6

Unlike traditional sliding windows, accordion-style systems make full use of the opening rather than restricting the space to only half of the opening.

1 / 3
NanaWall SL45 Open Folding Window- Daylight view
2 / 3
NanaWall SL45 Partially Open Folding Window - Daylight view
3 / 3
NanaWall SL45 Closed Folding Window - Daylight view

Standard to our folding windows is a two-point locking mechanism consisting of a top and bottom locking rod for added security and peace of mind.

1 / 8
NanaWall at The Pub, Mercato Mall, Naples, FL, featuring impact-rated glass panels, thermal break technology, and commercial-grade durability
2 / 8
3 / 8
4 / 8
5 / 8
6 / 8
NanaWall SL73 impact-rated folding glass wall system at a high-traffic commercial venue in Florida, meeting tested performance and code approval standards
7 / 8
8 / 8

We engineer independently-tested hurricane impact systems for air infiltration, water penetration, and structural load with excellent results. Our Miami-Dade approved SL73 is the impact-rated solution for high-velocity hurricane zones.

Matching Window Door Combo

Achieve unparalleled flexibility with a customizable window door combination. Folding windows can be paired with full-height folding glass doors with matching frame styles for cohesive design and optimal functionality.

Maximize counter space with a functional pass-through window ideal for entertaining and al fresco dining, and to capitalize on the indoor/outdoor experience.

Explore Window Door Combinations
1 / 6
2 / 6
NanaWall at Needham House, showcasing wood-framed folding glass walls with thermal insulation, custom finish, and indoor-outdoor flow
3 / 6
4 / 6
5 / 6
6 / 6

Explore Folding Window Projects

Find inspiration for your next project in these striking commercial and residential accordion window applications.

1 / 5
2 / 5
3 / 5
4 / 5
5 / 5
1 / 21
2 / 21
3 / 21
4 / 21
5 / 21
6 / 21
7 / 21
8 / 21
9 / 21
10 / 21
11 / 21
12 / 21
13 / 21
14 / 21
15 / 21
16 / 21
17 / 21
18 / 21
19 / 21
20 / 21
21 / 21
1 / 3
2 / 3
3 / 3
1 / 9
2 / 9
3 / 9
4 / 9
5 / 9
6 / 9
7 / 9
8 / 9
9 / 9
1 / 3
2 / 3
3 / 3
1 / 11
2 / 11
3 / 11
4 / 11
5 / 11
6 / 11
7 / 11
8 / 11
9 / 11
10 / 11
11 / 11
1 / 11
2 / 11
3 / 11
4 / 11
5 / 11
6 / 11
7 / 11
8 / 11
9 / 11
10 / 11
11 / 11
1 / 13
2 / 13
3 / 13
4 / 13
5 / 13
6 / 13
7 / 13
8 / 13
9 / 13
10 / 13
11 / 13
12 / 13
13 / 13
1 / 8
2 / 8
3 / 8
4 / 8
5 / 8
6 / 8
7 / 8
8 / 8
1 / 6
2 / 6
3 / 6
4 / 6
5 / 6
6 / 6
1 / 7
2 / 7
3 / 7
4 / 7
5 / 7
6 / 7
7 / 7
1 / 38
2 / 38
3 / 38
4 / 38
5 / 38
6 / 38
7 / 38
8 / 38
9 / 38
10 / 38
11 / 38
12 / 38
13 / 38
14 / 38
15 / 38
16 / 38
17 / 38
18 / 38
19 / 38
20 / 38
21 / 38
22 / 38
23 / 38
24 / 38
25 / 38
26 / 38
27 / 38
28 / 38
29 / 38
30 / 38
31 / 38
32 / 38
33 / 38
34 / 38
35 / 38
36 / 38
37 / 38
38 / 38

Frequently Asked Questions

NanaWall folding windows use an accordion-style operation that allows the panels to fold and stack to the side. Unlike traditional sliding windows that typically restrict access to a portion of the opening, folding windows can make full use of the available opening, creating a more expansive connection between spaces. 

Yes. NanaWall folding windows offer flexible sizing and can be configured for compact openings or larger walls of windows. Each solution can be tailored to the architectural requirements of the project while maintaining narrow frames, smooth operation, and high-performance characteristics.

NanaWall folding windows are available with aluminum, wood, and aluminum clad frames. Depending on the selected system, they can be customized with a range of colors, finishes, and simulated divided lites to complement existing architecture or establish a distinctive design aesthetic.

NanaWall folding windows feature a standard two-point locking mechanism with locking rods engaging at both the top and bottom. The systems are also engineered to meet or exceed applicable industry standards for forced entry, along with air infiltration, water penetration, and structural performance.

Yes. NanaWall offers independently tested hurricane impact solutions for projects requiring enhanced protection against air infiltration, water penetration, and structural loads. For High Velocity Hurricane Zone applications, the Miami-Dade approved SL73 provides an impact-rated solution for demanding hurricane conditions.

Yes. Folding windows can be paired with full-height folding glass doors using matching frame styles to create a cohesive Window Door combination. They can also be configured as pass-through windows, helping maximize counter space and improve functionality for entertaining, outdoor dining, and indoor-outdoor living.

Explore More FAQ

Get Help With Your Window Project

Connect with NanaWall experts to answer your questions and discuss how we can support your glass door and window project.

(866) 210-4285
Monday - Friday: 7 AM - 5 PM PST

Get Support
1 / 5
2 / 5
Modern kitchen with white cabinets, stainless steel dishwasher, stove with red knobs, and aluminum clad folding windows overlooking a green backyard.
3 / 5
Modern kitchen with outdoor bar with a large open window ledge featuring aluminum clad folding windows, seamlessly connecting to the modern kitchen.
4 / 5
5 / 5
NanaWall at The Pub, Mercato Mall, Naples, FL, featuring impact-rated glass panels, thermal break technology, and commercial-grade durability