Trade Grade Gypsum Fiber Cornice, 4-Inch Profile, 2.4m Length

4-Inch Gypsum Cornice

The Gypsum Fiber Cornice serves as a high-density architectural trim designed to bridge the transition between wall and ceiling surfaces. This 100mm profile molding features integrated fiberglass reinforcement to prevent snapping during handling and to minimize long-term shrinkage. It provides a clean, professional finish for interior spaces, effectively masking structural movement cracks that often appear at the wall-to-ceiling junction.

Built for the Job

Contractors specify this molding for both residential and commercial interior fit-outs where a standard 4-inch drop is required. The fiber-reinforced gypsum composition allows for cleaner cuts with a miter box or fine-tooth saw compared to standard plaster alternatives. It withstands the rigors of a busy job site, resisting the chipping that often occurs with unreinforced plaster products. This material remains stable under varying humidity levels, making it suitable for high-traffic office environments and standard living areas.

• Concealing wiring or minor structural gaps at the ceiling line.

• Creating a decorative perimeter in boardrooms and lobbies.

• Standardizing finishes across large-scale housing projects.

Product Highlights

High-Density Reinforcement

Internal fiberglass strands increase the tensile strength and flexibility of the gypsum core.

Installation Efficiency

• Pre-primed smooth surface reduces paint consumption on site.
• Standard 8-foot lengths minimize the number of joints required for long runs.

Technical Specifications

What’s Included

• 1 x 8-Foot Gypsum Molding Strip

On-Site & Workshop Notes

• Store this material flat on a level surface in a dry area to prevent warping or moisture absorption before installation.

• Apply a high-quality gypsum-based adhesive to the back edges for a secure bond to the substrate.

• Use a miter saw with a high tooth count to achieve sharp, 45-degree corner joints without crumbling the edges.

• Sand the joints lightly with fine-grit sandpaper after the filler has cured for a seamless appearance before painting.