SUPERIOR
MgO FLOORING
The future of sub-flooring is here. Fire-proof, water-proof, and mold-proof solutions that outperform traditional OSB in every category.
MgO vs. OSB COMPARISON
See why Magnesium Oxide (MgO) is the superior choice for modern construction projects.
| CATEGORY | 3/4" OSB FLOORING | 3/4" MgO FLOORING | WINNER |
|---|---|---|---|
| Fire Resistance | Combustible; burns, smokes, delaminates | Non-combustible; extremely high fire rating | MgO |
| Moisture Resistance | Swells when wet; mold-prone; delaminates | Waterproof, mold-proof, rot-proof | MgO |
| Acoustic Performance | Low density → minimal sound reduction | Higher density → better STC/IIC performance | MgO |
| Durability | Can warp, swell, or chip | Highly durable and stable | MgO |
| Installation | Uses standard tools; easy for crews | Needs carbide/diamond blade; heavier handling | OSB |
SEE IT IN ACTION
Watch our installation process and see the durability tests firsthand.
TECHNICAL RESOURCES
Download detailed specifications and playbooks.
PROJECT SPOTLIGHT
See Superior MgO Sub Flooring in action on recent major developments.
ALPS Cleburne Apartments
Replaced gypcrete with MaxTerra MgO single-layer structural floor panels. Accelerated schedule by 2-3 weeks and reduced jobsite complexity.
Trilogy Senior Center
Reimagined 73,777 sq ft wood-framed design to Cold-Formed Steel (CFS) and MaxTerra MgO. Enhanced fire safety and structural longevity.
University Heights
A 350-unit mixed-use development utilizing MaxTerra MgO for superior fire resistance and durability in high-traffic student living areas.
INSTALLATION OPTIONS
Flexible solutions designed to meet the specific needs of your project.
Ideal for conventional wood framing or developers looking to upgrade their underlayment system without changing the structural base.
- Installs over OSB or plywood
- Fire-rated assemblies
- Meets STC/IIC code without a sound mat
- No curing time, no callbacks
The ultimate efficiency solution. Replaces OSB entirely with a single layer of structural MgO board directly on joists.
- Direct to joist installation
- Eliminates gypsum underlayment entirely
- Non-combustible structural deck
- Saves weeks on construction schedule
FREQUENTLY ASKED QUESTIONS
READY TO START?
Connect with our central team to discuss your project needs across any or all of our divisions.
BY MAIL
Superior Connects
8520 Steilacoom Blvd SW STE 101A, #311
Lakewood, WA 98498
Serving clients nationwide with rapid mobilization capabilities.