For heavy-duty flooring applications, Tongue & Groove (T&G) MgO boards are often the gold standard due to their structural integrity and superior fire resistance compared to traditional plywood or OSB.
Here is a breakdown of the technical specifications, benefits, and installation considerations for T&G MgO flooring:
- Key Technical Advantages
- Fire Rating: Most high-quality MgO boards are classified as non-combustible (Class A1/UL 050). They do not contribute to flame spread and maintain structural stability under high heat.
- Dimensional Stability: Unlike wood-based subfloors, MgO does not warp, swell, or delaminate when exposed to moisture. This is critical for maintaining the T&G joint integrity.
- Insects & Mold: Naturally resistant to termites and mold growth, as the inorganic composition does not provide a food source for biological agents.
- Acoustics: Due to its high density, MgO flooring offers excellent sound dampening properties (STC and IIC ratings) compared to lightweight timber boards.
- Common Flooring Specifications
| Feature | Standard Range |
| Thickness | 18mm to 20mm (Typical for structural subflooring) |
| Density | $1,000 \text{ kg/m}^3$ to $1,200 \text{ kg/m}^3$ |
| Edge Profile | 2-sided or 4-sided Tongue & Groove |
| Bending Strength | 15–20 MPa (Depending on glass fiber mesh layers) |
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APR
2026
APR
2026
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