WB AP 510 Series

Recessed Plaster Bead Access Doors

Sizes & Specifications

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Williams Brothers - WB AP 510 Series Recessed Plaster Access Door / Panel

Recessed Panel with Mud-in Flange Provides a Concealed Finish in Plaster Walls and Ceilings!

The WB AP 510 Series Recessed Plaster Bead Access Door is a durable, recessed access panel designed for installation drywall walls and ceilings in applications where a fully-concealed appearance is desired. Featuring a heavy-duty, 14 gauge steel door and a white baked, paintable enamel finish, door panel is recessed to receive plaster up to 1″ thick. Plaster covering the door finishes flush with the surrounding field, leaving only the narrow frame edges exposed.


  • Door: 14 Gauge Steel with 1″ Recess Lined with Expanded Metal Lath
  • Frame & Trim: 16 Gauge Steel, 1/4″ Wide Safety Edge
  • Plaster Bead: 3″ Wide 24 Gauge Galvanized Casing Bead and Expanded Metal Lath (the space from the expanded flange to the 1/4″ safety edge of the door will accommodate 3/4″ of plaster)
  • Finish: White Baked Enamel, Paintable Surface
  • Latches: Flush, Stainless Steel Cam Latch (opens with screwdriver)
  • Hinges: Continuous Stainless Steel Piano Hinge (allows opening to 180°)
  • Application: Walls, Ceilings


  • Finishes: Stainless Steel, Custom Colors
  • Locks: WB Cylinder Lock (keyed alike with 2 keys per lock)
  • Gasket: Weather-resistant Neoprene on All 4 Sides
  • Custom Sizes: Available on Request


WB AP 510 Features & Benefits


The WB AP 510 recessed access panel is available in a variety of sizes including 8×8, 12×12, 16×16, 18×18, 24×24 and more. In addition, custom sizes are available upon request. Door features a semi-concealed hinge, stainless steel cam latches to prevent rust, and a mud-in drywall flange. In addition, panel also comes with plastic grommets so that cam latches can be easily accessed. Options include locks and gaskets plus stainless steel construction and custom colors.

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