Picture Window – Keystone

Picture Window

Products in the Keystone family have been staples of Quaker’s product offering for decades. All Keystone products have been part of our offering for almost thirty years and are considered seriously heavy-duty windows for almost any type of commercial project.

Standard Features


  • K200 has a 2 3/8” frame depth
  • K300 Narrow have a 3 1/4″ frame depth
  • K300 Narrow offers slimmer mainframe dimensions
  • 1” insulated glass with Duralite® spacer
  • Thermally broken frame
  • Baked-on powder coat finish meets ANSA/AAMA 2604 specifications and is available in any color
  • With or without nailing fin
  • Florida Building Code Approved Product


Keystone Series Picture Windows are made to order with no standard sizes.



Performance Rating: HC-60


K300 Narrow

Performance Rating: HC-50