WB Basic 300 Series

18 Gauge Economy Access Doors

Sizes & Specifications

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Williams Brothers - WB Basic 300 Series Economy Access Door / Panel

The Best Economy Access Panel in the Industry!

The WB BASIC 300 18 Gauge Economy Access Door is a cost-effective, general purpose flush access panel designed for multi-use applications in walls and ceilings. Featuring 18 gauge galvanized steel construction with a white baked, paintable enamel finish, the WB BASIC 300 is considered one of the best general purpose, non-rated access doors by contractors and architects world-wide.


  • Door: 18 Gauge Steel
  • Frame & Trim: 18 Gauge steel, 1″ Wide Flange
  • Finish: White Baked Enamel, Paintable Surface
  • Latches: Flush, Stainless Steel Cam Latch (opens with screwdriver)
  • Hinges: Fully-Concealed Offset Hinge Up to and Including 24″ x 24″ (allows opening to 165°), Over 24″ x 24″ is Semi-concealed (allows opening to 180°)
  • Applications: Walls, Ceilings


  • Finishes: Stainless Steel, Custom Colors
  • Locks: WB Cylinder Lock (keyed alike with 2 keys per lock)
  • Gasket: Not Available (for Gasket see Model GP 101)
  • Custom Sizes: Available on Request


The WB BASIC 300 metal access panel is available in a wide variety of sizes including 8×8, 12×12, 14×14, 16×16, 24×24, and more. In addition, custom sizes are available upon request. Door features radius corners, a concealed hinge, stainless steel cam latches to prevent rust, and an exposed flange. Options include locks and gaskets plus stainless steel construction and custom colors. For a heavier gauge access panel, see our WB GP 100 Series.

Manufactured by The Williams Brothers Corporation of America. MADE IN VIRGINIA – USA.