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4900 FRP (Fiberglass Reinforced Polyester) Aluminum Entrance Systems












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docDownload 4900 Specifications

Capitol durable FRP doors absorb broad impact shock, reducing dents, which leads to longer door life. When selecting a Capitol FRP door, choose from standard colors, dark bronze, dark gray, or light gray. Other colors can be special ordered for specific project requirements. The 4900 FRP door system is a great long-lasting pre-finished alternative to hollow metal and wood doors.


  • Single or multiple 1/4” or 1” pre-glazed or open vision-lite arrangements and sizes available
  • Double weather-stripping to resist water and air infiltration
  • Class I (6.0 lb/ft3) polyisocyanurate foam insulated core (CFC/HCFC - Free)
  • Accommodates various commercial hardware, louvers, security grates, and vandal screens
  • Internal hardware reinforcement
  • Fully extruded 4 1/2" internal aluminum tubular frame
  • Stain/Chemical resistant FRP sheet
  • .120 Class A pebble grain face sheets
  • Multiple frame sizes/configuration
  • Custom color paint option available



Model Overall Depth Applications Available Configurations Glazing Infill Air Structural (Uniform Load) Muntins
4900 FRP 1-3/4" Fiberglass Reinforced Polyester Impact-resistant for high humidity and abusive environments: educational, industrial, waste water treatment, and public buildings Full Panel, Two-Lite, Three-Lite, Half Panel & Glass, Vision-Lite, Half Strip-Lite, Custom 1/4” or 1” =.23 cfm/ft² DP
= ±80.20 psf

= ±120.30 psf

*Varies upon glass make-up or infill type


4900 FRP Photos

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