folding windows
Steel Thermally Broken Folding Windows (FMT.65)
Explore Steel Thermally Broken Folding Windows (FMT.65) for custom window schedules. Compare the photographs, frame construction and available options before requesting project pricing.
Made to order. Price, approved dimensions and lead time are confirmed in the quote.

Planning this system for custom window schedules
Combining the strength of steel with thermal efficiency, this folding window offers robust construction and superior insulation, enhancing both style and functionality.
Steel Thermally Broken Folding Windows (FMT.65): maximum panel height 120"; maximum panel width 40"; stile 2 ⅜"; style Modern.
Give each window an opening ID, room name and measurement convention. Decide where ventilation is needed, which windows remain fixed and whether matching frames or sightlines matter across adjacent openings.
Photography & design details
Explore the options
Options for this system. Availability and combinations are confirmed in the final quote. Screen colors do not replace physical finish samples.
Colors & Finishes
Surface Tracks
Recessed Tracks
Configurations
Flag Handles
Panic Hardware
Divided Lites
Glass
Additional Options
Specifications & performance
Manufacturer-published values are specific to the stated system and tested configuration. Panel dimensions are not overall rough-opening dimensions. A dash means no value is supplied in that field.
Performance
- U-Factor
- -
- SHGC
- -
- Impact Rated
- -
- AAMA Tested
- -
- Design Pressure (psf)
- -
- Air Infiltration (cfm/ft2)
- -
- Water Penetration Resistance (psf)
- -
- Structural Test Pressure (psf)
- -
- Florida Approval #
- -
Specifications
- Maximum Panel Height
- 120"
- Minimum Panel Height
- 36"
- Maximum Panel Width
- 40"
- Minimum Panel Width
- 18"
- Maximum Panel Weight
- 10 lbs per sqft
- Panel Depth
- -
- Maximum Number of Panels
- 16 Bipart
- Stile
- 2 ⅜"
- Rail
- 2 ¹⁄₁₆"
Design and installation planning
Give each window an opening ID, room name and measurement convention. Decide where ventilation is needed, which windows remain fixed and whether matching frames or sightlines matter across adjacent openings.
Plan the opening
Your project
Request a quote
Steel Thermally Broken Folding Windows (FMT.65). Give each window an opening ID, room name and measurement convention. Decide where ventilation is needed, which windows remain fixed and whether matching frames or sightlines matter across adjacent openings.
Start with approximate dimensions if the opening has not been verified. This request begins project review; it is not an order or payment.