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S2500 Series Double Hung

Hung Window

Frame Depth (inches) 4.5

Description Architectural grade thermal strutted double hung with side-load sash commercial window for monumental sizes that mulls to 4-1/2" products.


  • Applications
  • Commercial
  • Education
  • Healthcare
  • Historic Replication

AAMA Rating


Test Size (inches)

60 x 99

Air Infiltration (cfm/ft2)


Water Resistance (psf)


Design Pressure Positive (psf)


Uniform Load Structural (psf)



0.49 - 0.63






The air infiltration and water resistance performance values provided above were achieved in a controlled lab environment. Performance of our products in the field will vary depending on product configurations, installation methods, and ambient conditions. AAMA 502 “Voluntary Specification for Field Testing of Newly Installed Fenestration Products” should be adhered to for testing installed products.

Standard Features

  • Block & tackle balances for superior operation
  • Mulls to 4 1/2" frame fixed and operable products
  • Sash easily removes from frame for maintenance & cleaning
  • Sash bypass one another for ease of cleaning (using sweep-lock option)
  • Removable take-out clips to prevent unauthorized sash removal
  • Full-length extruded lift handles
  • Exterior-beveled (putty) glazing leg on historic models

Optional Features

  • Applied-profile muntin grids
  • Dual-glazed split sash to permit high-performance glazing combinations
  • Dual window available in some configurations
  • 3" Extruded Auto Lock or Full Length Extruded Auto Lock (specify)
  • High-performance balances up to 120 lbs. per sash (larger sightlines at jambs)
  • True colonial muntins
  • White bronze hardware
  • Simulated (fixed) double hung for historic applications
  • Dual finish (two-tone color) option

Technical Data

Installation Accessories

4½" Unitized Frame Accessories
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4½” Frame Accessories
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CAD Files




Insulating Glass; Historic; Thermal Strut
Insulating Glass; Historic; With Astragal; Thermal Strut
Overhead Pulley Balanced
Lock Options; Thermal Strut
Frame Options - 1; Thermal Strut
Frame Options - 2; Thermal Strut
Glazing Options; Thermal Strut
TESTING: Our products are tested to the standards of and certified by the American Architectural Manufacturer's Association and the National Fenestration Rating Council.