WB EXT 1475 Series

Florida Approved for High Velocity & Impact Access Doors

Sizes & Specifications

Buy Online

Exterior Access Panel is the Industry’s Only High Velocity and Impact Tested Door!

The WB EXT 1475 Series Florida Approved for High Velocity & Impact Access Door with Locking Paddle Latch is a durable, flush access panel designed for installation in exterior walls in coastal zone applications where the ability withstand mother nature’s toughest storms is required. Featuring a rugged, 24 gauge rust resistive, galvannealed steel door with 2″ of polyurethane insulation, and a grey baked, paintable enamel finish, plus aluminum mill finish trim, door is the industry’s only high velocity and impact tested door with a design pressure of +/- 80 psf. Furthermore, this exterior access door/panel is tested and approved by Florida Building Code Product Approval standards # FL22309.


  • Door: 24 Gauge Rust Resistive, Galvannealed Steel
  • Frame & Trim: .080 Aluminum, 1″ Wide Flange
  • Finish: Grey Baked Enamel, Paintable Surface on Door – Mill Finish on Trim
  • Latches: Locking Handle
  • Hinges: Continuous Stainless Steel Piano Hinge
  • Insulation: 2″ Polyurethane (R-11)
  • Gasket: EDPM Gasket on All 4 Sides
  • Interior Latch Release: Allows Opening of Door from Inside
  • Approvals: Florida Product Approval #FL22309
  • Applications: Walls Only, Exterior Use


  • Custom Sizes: Available on Request


The WB EXT 1475 exterior access panel is available in a variety of sizes including 18×18, 20×30, 24×24, 24×30, 24×36 and more. In addition, custom sizes are available upon request. Door features a piano hinge, locking handle, gaskets, insulation, and an exposed flange.

Manufactured for The Williams Brothers Corporation of America. MADE IN USA.