255 Integrated Folding Window

Designed to complement our high-quality folding and double-swing doors, the Centor 255 Integrated Folding Window perfectly frames any view, and features the same wood interior options and thermally-improved aluminum construction.

For inside-outside living without the compromises, the Centor 255 Integrated Folding Window incorporates built-in screens and shades to control insects, sunlight and privacy. Our shades also enhance the thermal properties of the door, with independent tests showing that the blackout shade improves the U-value by 17% when drawn across the opening.

  • Wood interior in five unfinished options or primed for painting. Aluminum exterior in a range of standard or custom colors.
  • Engineered to last a lifetime – extrusions are painted after cutting and machining so all surfaces are coated, reducing the probability of filiform corrosion.
  • Hidden hardware, including Access AutoLatch™, AutoLatch™ and concealed hinge.
  • Integrated insect screens and shades are accessible for service or replacement. 
  • Screen box facings are available to enable simple installation into an existing opening. 
  • Double or triple glazing available.
Overall frame width
4' 8 ½" – 30' 11 ⅜" (1434 – 9434mm)
Visible frame width
3' 11 ¾" – 30’ 2 ¾” (1214 – 9214mm)
Frame height
5'-0" -10'-6 13/16" (1524 - 3222mm)
Panel width
1' 9 ⅞" – 3’ 3 ⅜” (555 – 1000mm)
Panel height
4'-6 7/16" -10'-1 1/4" (1383 - 3081mm)

*Centor 255 Integrated Folding Windows over 15’ 3 ⅜” (4657mm) available with the choice of either a screen or shade

Integrated folding window diagram

The Centor AutoLatch™ is used to close and secure intermediate panels in one movement, with one hand. It is available keyed or non-keyed.

Centor AutoLatch for easily opening intermediate panels on folding doors
Centor AutoLatch™
Concealed hinge

The concealed hinge on the Centor 255 Integrated Folding Window is hidden from sight within the edge of the window. Not only does it look great, but it also makes the window tamper-proof for additional security.

The concealed hinge on the Centor 255 Integrated Folding Window is hidden from sight within the edge of the window
The concealed hinge on the Centor 255 Integrated Folding Window is hidden from sight within the edge of the window
Integrated screens and shades

Built into the window frame, our innovative integrated insect screens and shades are a world-first offering. They allow homeowners to enjoy inside-outside living without the compromises traditionally associated with large openings – insects, glare and loss of privacy.

Centor screens for Integrated Windows are built into the window frame
Choose between two mesh types to keep even the smallest insects out of your home, like Deb: “Although there are a lot of midges near the moorland, we really didn’t expect to need it very much. It’s been so useful though!”
Centor shades for Integrated Windows retract from sight into the window frame when not in use
Available in three patterns and a range of colors, choose our retractable light-filtering or block-out shades, like Gillian: “I didn’t want any curtains in my house, but I wanted the capability to occasionally block the light out and to close the windows off at night.”
Air, water and structural

Centor Integrated Folding Doors & Windows achieved the following performance levels when tested in accordance with the standards set by NFRC/AAMA/WDMA/CSA.

Hurricane rating
Impact (Large Missile) for Wind Zone 4
USA Air Infiltration
0.11 cfm/ft²
Canadian Air Exfiltration
A2 (0.11 cfm/ft²)
Water Infiltration
6.89 psf (330 Pa)
Design Pressure
+/– 75 psf

The Design Pressure (DP) rating represents the maximum positive and negative wind load that a window or door can experience without breaking, deglazing or permanently distorting. The DP Rating is expressed as a positive and negative pound per square foot measurement (+/- psf). The Centor Integrated Folding Door was tested to a structural load of 67.67 psf and achieved a DP + /- 45 psf rating. The Centor Integrated Folding Door was tested in accordance to AAMA/WDMA/CSA 101/I.S2/A440-08,-11.


The National Fenestration Rating Council is a non-profit organization that establishes objective window, door, and skylight energy performance ratings to help you compare products and make informed decisions. Centor Doors have been tested in accordance with NFRC 102-2010.  

Double glazed: U-factor as low as 0.29 Btu/h ft²-°F
Triple glazed: U-factor as low as 0.23 Btu/h ft²-°F

Additionally, where blackout shades are used these values are improved by a further 17%.



Centor door finishes – wood
Centor door finishes – aluminum
Centor shade fabric options
Centor screen mesh options
Screen and shade configurations
Folding handle heights