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Concealed Access Doors

Glass Fiber Reinforced Gypsum Hinged

FGH

Glass Fiber Reinforced Gypsum Hinged

KARP’S FGH, glass fiber reinforced gypsum hinged access door, is aesthetically pleasing as it is designed to blend seamlessly into walls and ceilings. Once installed, the FGH access door is concealed for a picture perfect appearance, with necessary accessibility. KARP’S FGH access door is light weight and suitable for new or retrofit construction.

 
Size:

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Door Size
H × W (in.)
Door Size
H × W (mm)
Shipping Wt.
(lbs.)
Shipping Wt.
(kg.)
9 x 9 229 × 229
12 x 12 305 × 305
16 x 16 406 × 406
18 x 18 457 × 457
24 x 24 610 × 610

Glass Fiber Reinforced Gypsum Hinged Access Door

Karp's FGH Glass Fiber Reinforced Gypsum Hinged Access Door provides concealed access to building services while maintaining a consistent finished appearance. Manufactured from lightweight glass fiber reinforced gypsum, the FGH is designed to blend with surrounding wall and ceiling surfaces after installation and finishing.

Its hinged design provides convenient access for inspection and maintenance, while tapered and rounded edges help create a smooth transition into the surrounding finished surface. Suitable for new construction and retrofit projects, the FGH offers a discreet alternative to conventional metal access panels.

Concealed Design with Hinged Access

The FGH combines a gypsum access panel with a hinged door configuration, providing convenient access without requiring the entire panel to be removed.

Key features include:

  • Glass fiber reinforced gypsum construction

  • Lightweight door design

  • Tapered edges

  • Rounded edges

  • Offset cabinet hinge

  • Cylinder lock

  • Mounting holes

  • Designed for new and retrofit construction

  • Concealed appearance after installation and finishing

Gypsum Construction and Hardware

The FGH uses glass fiber reinforced gypsum to help the access door blend with surrounding finished surfaces.

Its offset cabinet hinge allows the door to swing open for service access, while the cylinder lock provides a locking option for controlled access.

The tapered and rounded edges are designed to support a clean finished appearance around the panel.

Wall and Ceiling Applications

Unlike the standard GFRG model, which is designed specifically for drywall ceilings, the FGH is suitable for both wall and ceiling installations.

Typical applications include:

  • Commercial office interiors

  • Hotels and hospitality projects

  • Multi-family residential buildings

  • Institutional buildings

  • Finished drywall walls and ceilings

  • New construction and renovation projects

The FGH provides access to concealed plumbing, electrical, mechanical and other building services. Confirm the installation conditions and required service clearance before selecting the panel size.

Standard Sizes and Opening Requirements

The FGH is available in five standard door sizes. The required ceiling opening is 6 inches larger than the nominal door size in both dimensions.

Door Size (H × W) Opening Size (H × W) Shipping Weight
9 × 9 in. 15 × 15 in. 6 lbs.
12 × 12 in. 18 × 18 in. 9 lbs.
16 × 16 in. 22 × 22 in. 12 lbs.
18 × 18 in. 24 × 24 in. 14 lbs.
24 × 24 in. 30 × 30 in. 23 lbs.

The specification drawing identifies the opening allowance as 6 inches beyond the door dimensions. Confirm the framing and opening requirements for the intended wall or ceiling installation before construction.

For detailed construction and installation information, refer to the FGH architectural specification sheet.

FGH vs. GFRG: Choosing the Right Gypsum Access Panel

Karp offers two glass fiber reinforced gypsum access solutions for concealed installations. The main difference is the door configuration and intended application.

Feature FGH GFRG
Construction Glass fiber reinforced gypsum Glass fiber reinforced gypsum
Door configuration Hinged Standard access panel
Hardware Offset cabinet hinge and cylinder lock Refer to GFRG product specification
Applications Walls and ceilings Drywall ceilings
Standard sizes 9 × 9 to 24 × 24 in. 9 × 9 to 24 × 24 in.

For a concealed gypsum access panel designed specifically for drywall ceilings, see Karp's GFRG Glass Fiber Reinforced Gypsum Access Door.

For another concealed drywall solution with an aluminum frame, compare the KAD Aluminum Drywall Access Door.

Specify the Karp FGH Hinged Access Door

For projects requiring discreet access to building services in finished walls and ceilings, the FGH combines lightweight glass fiber reinforced gypsum construction with a hinged door and cylinder lock.

Contact Karp to confirm the required size, installation details and project specifications.

Customer Reviews

5.0 / 5

Based on 1 customer review

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Brandon Mitchell

I needed a hinged access door that would work with a gypsum surface. I like having a purpose-designed option that provides convenient access while maintaining a clean appearance.

These are genuine customer reviews and reflect the individual experiences of our customers.

Frequently Asked Questions

What is a GFRG hinged access door?
A GFRG hinged access door is a concealed access panel made from glass fiber reinforced gypsum. The FGH model features a hinged door for convenient access to concealed building services.
What does GFRG stand for?
GFRG stands for glass fiber reinforced gypsum, a gypsum-based material reinforced with glass fibers.
Can the FGH access door be installed in walls and ceilings?
Yes. Karp identifies the FGH for both wall and ceiling applications.
What type of hinge does the FGH use?
The FGH specification identifies an offset cabinet hinge.
Does the FGH have a locking mechanism?
Yes. The product specification lists a cylinder lock.
What standard sizes are available?
The five standard sizes are 9 × 9, 12 × 12, 16 × 16, 18 × 18 and 24 × 24 inches.
What is the required opening size?
The specification drawing indicates an opening 6 inches larger than the nominal door size in both dimensions. For example, a 12 × 12-inch door requires an 18 × 18-inch opening.
Is the FGH fire rated?
The published FGH specification does not establish a fire-resistance rating. Do not specify it for a fire-rated wall or ceiling assembly without a verified applicable listing.
Glass Fiber Reinforced Gypsum Hinged

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