20mm Sanded Magnesium Oxide Subfloor Board
20 mm sanded magnesium oxysulfate board for structural subfloor applications.
Available in project-specific sizes and edge profiles. This is a subfloor panel—not a finished flooring product.
Minimum order: 1×20GP container.
20mm Sanded MgO Board for Structural Subfloors
This 20 mm magnesium oxysulfate board is manufactured with a sanded surface for subfloor and single-layer structural subfloor applications. It forms the supporting board layer beneath the selected finished floor system; it is not supplied as finished flooring.
The required board size, density, edge profile, span, support spacing, fixing method and design load must be reviewed together before an order is confirmed.
Product Specification
| Product | Sanded magnesium oxysulfate subfloor board |
|---|---|
| Thickness | 20 mm |
| Standard sizes | 1220 × 2440 mm and 1220 × 2740 mm |
| Surface | Sanded |
| Edge options | Square edge, tongue-and-groove or shiplap; subject to project confirmation |
| Density | Project specification to be confirmed |
| Minimum order | 1×20GP container |
Intended Use
| Structural subfloor | Single-layer board applications where span, load, support and fixing requirements have been reviewed |
|---|---|
| Subfloor replacement | Mineral-board alternative to wood-based subfloor panels, subject to system design |
| Underlayment | Only where the selected thickness and assembly are appropriate; non-structural underlayment requirements should be stated separately |
Information Required Before Quotation
- Subfloor application and supporting structure
- Panel size, edge profile and estimated quantity
- Joist or support spacing, design load and fixing method
- Destination and applicable project standards
Performance and Documentation
Sulfycor magnesium oxysulfate board samples have been evaluated for relevant fire and physical-performance properties. Results apply to the tested sample, thickness or assembly. The applicable documentation is matched to the confirmed product specification during technical review.
Compare other options in the Sanded Magnesium Oxide Board series or review the MgO subfloor application page.
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