GFRG/GFRC Column Covers
Industry Leader in GRG Building Components
Castle is a trusted manufacturer of Glass Reinforced Gypsum (GRG) building components, serving commercial, institutional, and luxury residential construction projects. Our architectural GRG elements are designed for durability, elegance, and precision.
We offer one of the largest selections of stock molds for GFRG/GFRC column covers, with diameters ranging from 8” to 60” and heights up to 16 feet—ideal for interior columns, decorative moldings, coffered ceilings, and custom architectural designs.
Why Choose Castle for GFRG/GFRC Architectural Products?
✔ Fast Turnaround Times – Minimize project delays with efficient production
✔ Custom GFRG/GFRC Fabrication – Bespoke designs tailored to your exact specifications
✔ Expert Design & Technical Drawings – Precision-crafted solutions for architects & contractors
✔ Free Freight for Qualified Orders – Cost savings on bulk and custom orders
✔ Full-Service Mold Shop – In-house capabilities for unique and complex designs
Castle is committed to providing high-quality GRG solutions for column covers, ceiling domes, wall panels, cornices, and decorative architectural elements.
Sizes and Installation
GFRG
| Diameter | Height |
|---|---|
| 8" | 12'-0" |
| 10" | 12'-0" |
| 12" | 12'-0" |
| 14" | 12'-0" |
| 16" | 12'-0" |
| 18" | 12'-0" |
| 20" | 14'-0" |
| 22" | 14'-0" |
| 24" | 12'-0" |
| 26" | 14'-0" |
| 28" | 14'-0" |
| 30" | 14'-0" |
| 32" | 14'-0" |
| 34" | 13'-0" |
| 36" | 13'-0" |
| 38" | 12'-0" |
| 40" | 12'-0" |
| 42" | 13'-0" |
| 44" | 14'-0" |
| 46" | 10'-0" |
| 48" | 8'-0" |
| 50" | 8'-0" |
| 52" | 8'-0" |
| 54" | 8'-0" |
| 56" | 8'-0" |
| 58" | 8'-0" |
| 60" | 8'-0" |
GFRC
Installation Process:
Secure Attachment – Installed using screws and adhesive for a strong, reliable hold.
Seamless Joints – Sections are taped and floated to create a monolithic appearance with no visible seams.
Ready for Finishing – Once installed, column covers can be painted or finished to match your design vision.
Detailed Installation Guide – Shop drawings include all necessary installation details for a smooth process.
Castle’s GRG column covers offer architectural elegance, fire resistance, and long-lasting durability—perfect for commercial, institutional, and high-end residential projects.
Contact us for expert guidance!
General Guidelines
- GRG Column covers should be stored in an enclosed area and protected from weather
- Fasteners are standard self tapping or self drilling drywall screws and drywall type adhesive such as PL 100
- Joints in GRG column covers are finished similar to gypsum board in according to ASTM C-475 guidelines.
Fiberglass tape is recommended - Column covers are typically made to length, but if cutting is required, a dry diamond saw blade or a fine toothed carbide tipped metal blade is recommended.
- As with all gypsum, fiberglass or construction materials avoid breathing the dust (See installation instructions)
When dry and dust free, prime and paint or finish the GRG column covers as desired - As with any gypsum product, GRG column covers that are to receive a semi gloss or gloss finishes will require additional preparation of the surface.
Resources
Get instant access to CAD drawings, installation guides, specs, and sustainability data. Whether you’re submitting for approvals or sourcing for a large-scale project, Castle gives you everything you need — fast.
If you have any questions, feel free to reach out to us via email at inquiries@castleaccesspanels.com
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INFORMATION
135 Wendell Ave,
North York, ON,
M9N 3K9 Canada
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