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Galvanized zinc square mud ring, single gang, raised one inch, 7.50 cubic inches

Hubbell Incorporated

Hubbell Incorporated RACO 774 Mud Ring 1 Gang Galvanized Zinc Square Box 7.50 Cubic Inches

SKU CH-BDM0-QNXCD

Single-gang plaster ring with 7.50 cubic-inch capacity, galvanised zinc construction and tapped ears

  • TypeElectrical Boxes & Covers
  • Single-gang plaster ring with keyed design for secure plaster adhesion
  • 50 cubic inch capacity provides ample wiring space
  • Galvanized zinc construction resists corrosion in damp locations
  • Raised 1 inch depth accommodates thicker wall finishes
  • Tapped ears simplify mounting to studs or joists

RACO 774 Single-Gang Mud Ring

This single-gang plaster ring fits standard square boxes and adds 7.50 cubic inches of wiring capacity. It is designed for installers who need a raised, keyed mounting surface for plaster finishes. The galvanized zinc construction suits interior residential and light-commercial work. The centre blank and tapped ears simplify device attachment.

Check Your Box Before Ordering

Verify that the existing square box accepts a 1-inch raised cover and has the matching screw pattern for the tapped ears. Confirm the installation requires a plaster-keyed surface rather than a flat cover. Ensure local code permits the added cubic-inch volume for the intended conductor count. The ring mounts directly without additional brackets.

Galvanized Zinc Build and Daily Use

The galvanized zinc coating resists corrosion in dry indoor environments. Tapped ears provide secure device mounting without separate hardware. The keyed surface holds plaster firmly, reducing cracks around the device opening. The centred blank keeps the opening aligned for standard switches or receptacles.

Highlights

  • Single-gang plaster ring with keyed design for secure plaster adhesion
  • 50 cubic inch capacity provides ample wiring space
  • Galvanized zinc construction resists corrosion in damp locations
  • Raised 1 inch depth accommodates thicker wall finishes
  • Tapped ears simplify mounting to studs or joists

Specifications

BrandRACO
TypeElectrical Boxes & Covers

Questions about this item

What comes in the box with the RACO 774 mud ring and do I need to buy anything else?

The package contains the single-gang galvanized zinc mud ring with keyed plaster openings, center blanked and raised one inch. Mounting screws and the square box it attaches to are sold separately.

How do I choose the right version of the RACO 774 for my job?

The RACO 774 is a single configuration: one-gang, 7.50 cubic inch capacity, four-by-four inch footprint, galvanized zinc finish with tapped ears. Select it when those exact dimensions match the box you are extending.

What does the 7.50 cubic inch capacity mean once the ring is installed?

It adds 7.50 cubic inches of wiring volume to the square box, giving you the code-compliant space needed for conductors and devices in a single-gang plaster-ring application.

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