
16 Dec Top Applications for Magnesium Oxide Board
Table of Contents
You see magnesium oxide board used for walls, ceilings, and floors in homes and offices. Builders pick mgo board because it helps stop fires. It blocks water and lasts longer than wood or gypsum. This material works well in kitchens and bathrooms. It is good for places with strong fire safety rules. Many people like it in new houses and renovations. It is also used in green buildings. People choose magnesium oxide board used for areas where there is a lot of humidity or wildfires.
Key Takeaways
Magnesium oxide board stops fire very well. It is a safe pick for walls, ceilings, and floors in homes. It is also good for commercial buildings.
This board does not let water in easily. It stops mold and water damage. This makes it great for kitchens, bathrooms, and other wet places.
Magnesium oxide board is very strong. It does not get ruined by bugs, rot, or bad weather. You do not need to fix it often.
Magnesium oxide board is good for the planet. It uses natural things and can be recycled. This helps with green building.
Magnesium oxide board can be used in many ways. It is simple to put in place. You can use it for inside walls, ceilings, and outside coverings.
Magnesium Oxide Board Benefits
Fire Resistance in Construction
You want your building safe if there is a fire. Magnesium oxide board used for walls, ceilings, and floors gives strong protection. Lab tests show magnesium oxide board works better than drywall and plywood. It blocks fire, does not burn, and stops smoke from moving. This makes it a great choice for building in 2025. You can see how it compares in the table below:
Property/Material Aspect | Magnesium Oxide (MgO) Boards | Gypsum Board | Cement Board | Plywood | OSB |
|---|---|---|---|---|---|
Fire Resistance | Superior, up to 4 hours | Medium | High | Low | Low |
Thermal Stability | Withstands heat up to 1200°C | Lower | Moderate | Low | Low |
Combustibility | Noncombustible (Class A rating) | Combustible | Combustible | Highly combustible | Highly combustible |
Smoke and Toxicity | No harmful gases or smoke | Emits smoke | Emits smoke | Emits smoke | Emits smoke |
Structural Integrity in Fire | Maintains strength and shape | Weaker under high heat | May crack or break | Weakens quickly | Weakens quickly |

You also feel safe because magnesium oxide board used for building meets tough fire safety rules. It usually gives at least one hour of fire protection. You can use it in places that need more safety.
Moisture and Mold Protection
You need materials that do not get ruined by water. Magnesium oxide board used for bathrooms, kitchens, and wet places keeps your building safe from mold. Studies show it handles water better than gypsum drywall. It does not swell, crack, or grow mold when wet. The table below shows how it works:
Material | Moisture Resistance Rating | Performance in Wet Areas |
|---|---|---|
MgO Board | High | Excellent for constant water exposure, does not absorb water. |
Cement Board | Moderate | Good for wet areas, often used under tiles in bathrooms. |
Gypsum Board | Low | Suitable for light moisture, can weaken with prolonged exposure. |
You can trust magnesium oxide board used for wet places to keep your rooms healthy and strong.
Durability and Strength
You want your building to last a long time. Magnesium oxide board used for many jobs is very tough. It does not get ruined by bugs, rot, or bad weather. You do not have to fix it often. Tests show it is strong and does not break easily. This means you get good performance and spend less on repairs.
Eco-Friendly Features
You care about the earth. Magnesium oxide board used for green buildings helps you make less pollution. It is made from natural things and does not let out bad gases. When it is made, it even takes in some carbon dioxide from the air. The carbon released for magnesium oxide board is much less than cement or gypsum boards. Many brands have special certificates for being good for the planet.
MAXTERRA®’s EPD is checked by others and follows ISO 14025 and ISO 21930 rules, based on a Life Cycle Assessment (LCA) study of how it is made.
You can feel good picking magnesium oxide board used for your next job because it can be recycled, is safe, and helps the earth.
Magnesium Oxide Board Used for Interior Construction

Magnesium oxide board gives you lots of choices for building inside. You can use it for walls, ceilings, floors, doors, furniture, and acoustic panels. These uses help you make spaces that are safe, strong, and last a long time.
Walls and Partitions
You want walls that keep you safe from fire and last many years. Magnesium oxide board works great for fire-rated walls in homes, offices, and stores. You get smooth walls that are easy to paint or finish. The board stops fire and blocks sound, so rooms are safer and quieter. You can build walls fast and change them when needed. In stores, magnesite hollow boards helped workers finish walls 20% faster. These walls are used where safety and flexibility are important.
Tip: Pick magnesium oxide board for inside walls if you need strong fire protection and easy setup.
Application Type | Description |
|---|---|
Interior Walls | Strong and fire-safe walls in homes, offices, and stores. |
Partition Walls | Stops fire and sound, makes safe areas, and lets you change layouts quickly. |
You get strong walls that resist water, so they stay solid even in tough places.
Ceilings
You need ceilings that look nice and protect you from fire. Magnesium oxide board is lighter than cement board, so it is easy to put up. You see it in malls, theaters, and classrooms. The board fights fire and mold, so your ceiling stays safe and clean. It also blocks noise, with a sound value of 30 dB. You save energy because the board does not let heat pass through easily. Your ceiling stays strong and quiet.
Magnesium oxide board is simple to use for ceilings.
You get fire and moisture protection.
The board helps keep loud places quieter.
Floors and Subflooring
You want floors that hold heavy things and stand up to lots of walking. Magnesium oxide board gives you strong and tough floors. You can use it under tiles or wood. The board fights water, fire, and mold, so floors last longer. In wet places, you get protection from water and mildew. For subfloors, a 3/4-inch MagPanel gives extra support and stops bending.
Magnesium oxide board is tougher than plywood or drywall.
You get floors that resist water in humid places.
The board keeps out mold and water damage.
Doors and Furniture
You need doors and furniture that are safe and strong. Magnesium oxide board is used inside fire-rated doors, giving heat protection for up to two hours. You get light panels for cabinets and shelves. The board has a smooth surface you can paint or finish. You see it in projects where fire safety matters.
Application Area | Mgo Board Benefit | Safety Impact |
|---|---|---|
Fire Doors | Protects doorways | |
Furniture Panels | Strong, easy to paint | Safe and lasts long |
You get strong and fire-safe doors and furniture for inside spaces.
Acoustic Panels
You want rooms that are quiet with less noise. Magnesium oxide board works well for sound panels. The thick board blocks sound better than gypsum board. You get panels that last long and resist water. The board is fireproof and made from earth-friendly materials. You can use it in offices, schools, and theaters.
Attribute | MgO Board | Gypsum Board |
|---|---|---|
Sound Insulation | Great because it is thick | Not as good at blocking sound |
Durability | Resists water and mold | Can be hurt by water |
Fire Resistance | Fireproof | Can be damaged by heat |
Eco-Friendliness | Made from green materials | Needs lots of mining |
You get strong, fire-safe, and water-resistant sound panels. These uses help you make spaces that are safe, quiet, and comfy.
Exterior and Specialized Construction Uses

Magnesium oxide board is used outside because it is tough. It stops fire, blocks water, and lasts a long time. Builders use it for cladding where safety matters most. You can use it in many outside and special building jobs.
Exterior Walls and Sheathing
You want walls outside that keep out fire, wind, and water. Magnesium oxide board works for wall cladding and sheathing. It stands up to strong winds and hard hits. The board does not rot or get bugs. Your walls stay strong for years. You can use it for fascia, soffit, trim, and lap siding. Many buildings in hurricane areas use magnesium oxide board. It keeps the building safe in storms.
Here is a table that shows how magnesium oxide board works in different weather:
Performance Feature | Description |
|---|---|
Structural Support | Makes outside walls and cladding strong. |
Blocks water, air, and vapor, good for all weather. | |
Gives fire protection for outside jobs. | |
Thermal Insulation | Comes in many thicknesses for hot and cold places. |
Vapor Permeability | Lets walls dry if water gets inside. |
Chemical Bonding | Paint and coatings stick well, so it lasts longer. |
You can use magnesium oxide board for wall cladding in DIY jobs, fixes, and fast builds. The board gives you safety and quality every time.
Bathrooms and Wet Areas
You need stuff that does not get ruined by water in bathrooms. Magnesium oxide board does not soak up water. You can use it behind tiles, in basements, and kitchens. The board does not swell, rot, or change shape, even when wet. It works better than cement board, which may need extra waterproofing.
Here is a table that compares magnesium oxide board and cement board:
Material | Additional Notes | |
|---|---|---|
Magnesium Oxide Board | Very good at stopping water; does not swell or rot | Stops mold and mildew because it is alkaline |
Cement Board | Blocks water but can soak some up over time | May need more waterproofing in some places |
Magnesium oxide board is lighter and easier to put in than cement board. It gives better fire safety and is good for the planet. You can trust it for wet places.
Tip: Pick magnesium oxide board for bathroom walls if you want strong water and mold protection.
Soffits and Facades
You want soffits and facades that look nice and last in any weather. Magnesium oxide board is not made from wood, so it does not soak up water. The board stays strong and keeps its shape in wet or dry weather. It stops mold and mildew, so your building stays healthy. The board is better than gypsum and OSB in wet places.
Here is a table that shows why magnesium oxide board is good for soffits and facades:
Advantage | Description |
|---|---|
Moisture Protection | Does not soak up water, stays strong in wet weather. |
Stops mold, works better than gypsum and OSB. | |
Durability | Stays tough in wet and dry weather, so cladding lasts longer. |
You can use magnesium oxide board for soffits and facades to get strong cladding and easy care.
Fireplace Surrounds
You need safe walls around fireplaces. Magnesium oxide board stops fire and does not burn. The board can take heat up to 1200°C for four hours. It keeps its shape and does not make bad smoke or gases in a fire. The board is easy to cut and put in. You can make custom fireplace walls that follow safety rules.
Note: Magnesium oxide board is a great pick for fireplace walls because it is safe and works well.
Tunnels and Infrastructure
You want materials that protect tunnels from fire and water. Magnesium oxide board does not burn and stays strong in high heat. The board lowers fire risks in tunnels. It stops mold and keeps water out better than other boards. The board does not make toxic gases, so people are safer in emergencies.
Here is a table that shows why magnesium oxide board is good for tunnels and big projects:
Evidence Description | Key Points |
|---|---|
Fire Resistance | Handles heat up to 1200°C for four hours, stays strong. |
Non-combustibility | Does not burn, lowers fire danger. |
Structural Integrity | Stays strong in high heat, makes things safer. |
Mold and Moisture Resistance | Stops mold, keeps water out better than other boards. |
Safety in Evacuations | Does not make bad gases or smoke, keeps people safer. |
You see magnesium oxide board used for tunnels, bridges, and other big jobs where fire safety and strength matter most.
Callout: Magnesium oxide board gives you strong cladding for outside walls, wet places, soffits, facades, fireplaces, and big projects. You get fire safety, water protection, and long-lasting use for every job.
Sector Uses in Construction
Commercial Buildings
Magnesium oxide board is used in many commercial buildings. Builders pick it because it stops fires and is strong. Walls and ceilings made with it help keep people safe. The board does not get ruined by water, so it works in humid places. It is easy to install, so you save time. The table below shows why magnesium oxide board is good for commercial projects:
Benefit/Feature | Description |
|---|---|
Fire Resistance | Stops fire and keeps buildings safe. |
Moisture and Mold Resistance | Protects against water and mold. |
Durability | Lasts longer than other materials. |
Ease of Installation | Saves time and labor costs. |
Environmental Safety | Made from eco-friendly materials. |
Application in Various Settings | Used in schools, hospitals, and modular construction. |
You get better results and spend less money on your building.
Educational Facilities
Schools need to be safe and healthy. Magnesium oxide board helps stop fires and water damage in classrooms. Walls and ceilings made with it are strong and do not break. The board is light, so workers put it up fast. The table below shows how magnesium oxide board helps schools:
Application Type | Benefits |
|---|---|
Classrooms | Fire resistance, mold and mildew resistance |
Meeting Rooms | Durability and easy installation |
Libraries | Lightweight and easy to move |
Ceilings | Reduces construction time |
Gyms | Works well in high-traffic areas |
Students stay safe and buildings last longer.
Healthcare Environments
Hospitals need to be clean and safe. Magnesium oxide board helps keep walls dry and stops germs. It protects against mold, mildew, and dust mites. The board does not crack, so germs cannot hide. It is strong and does not get scratched in busy places.
Stops mold and mildew by letting water vapor out.
Keeps humidity low, so mold does not grow.
Safe for people who are sensitive.
Strong and does not crack, so walls stay clean.
Does not get dents or scratches in busy areas.
Patients and staff stay safer and healthier.
Public Infrastructure
Magnesium oxide board is used in modular homes and public buildings. It gives walls that resist fire and water. You can build faster and spend less on moving parts. The board meets building rules and keeps people safe. The table below shows how it works:
Application | Benefits | Outcome |
|---|---|---|
SIPs in modular housing | High fire resistance, moisture and mold resistance, thermal and acoustic insulation | Faster assembly, reliable shipping, better safety |
Exterior wall sheathing | Fire-resistant, UV and heat-resistant, lightweight | Durable solutions that meet codes |
More safety from fire
Faster building with quick assembly
Meets rules in many places
Public spaces are strong and safe.
Recreational Spaces
Gyms and sports centers need to be safe. Magnesium oxide board makes buildings strong and protects from fire. The board does not get ruined by water, so it stops damage. You spend less fixing things because the board lasts long. The table below shows the benefits:
Property | Benefit in Recreational Spaces |
|---|---|
Structural Strength | Keeps areas safe and stable |
Fire Resistance | Reduces fire hazards |
Moisture Resistance | Prevents damage and keeps facilities strong |
Low Maintenance | Cuts upkeep costs and ensures durability |
You make gyms and sports centers safe and strong for everyone.
Material Comparison and Installation
Magnesium Oxide Board vs. Gypsum Board
You need to choose the best material for your job. Magnesium oxide board and gypsum board are not the same. Magnesium oxide board protects well from fire. It does not burn or change shape in heat. Gypsum board can get weak if it gets wet or hot. Look at the table below to see the differences:
Material | |
|---|---|
Magnesium Oxide | Non-combustible, does not ignite or support flame, maintains structural integrity under prolonged exposure to fire. |
Gypsum Board | Can lose integrity when exposed to moisture or sustained heat, releases water vapor under high heat conditions. |
You want a material that can handle water. Magnesium oxide board does not get ruined in wet places. Gypsum board can break and get weak when wet. Magnesium oxide board works better in bathrooms and kitchens.
Magnesium oxide board: Handles water well, stays strong in humidity.
Gypsum board: Gets weak and can break when it gets wet.
Magnesium oxide board is easy to put in. You can use it in many places without extra steps. Gypsum board needs more care and extra help in wet rooms.
Magnesium oxide board: Simple to install, works in many jobs.
Gypsum board: Needs careful work and extra support in wet spots.
MgO panels like EXACOR® are strong and fire-safe. You can use them under floors in apartments and stores. They are easy to install and may not need extra sound mats, which you often need with gypsum concrete.
Magnesium Oxide Board vs. Cement Board
You might want to know how magnesium oxide board compares to cement board. Magnesium oxide board costs more at first. Cement board is cheaper to buy. Magnesium oxide board lasts longer and needs less fixing, so you save money later.
First Cost: MgO boards cost more than cement boards.
Total Cost: MgO boards save money because they last and need less fixing.
MgO board: Costs more at first but saves money over time.
Cement board: Cheaper at first but may need more repairs.
MgO boards cost more than cement boards when you buy them. They last longer and need less fixing, so you save money later. You do not have to replace them as much.
Installation Tips and Cost Analysis
You want to install your boards without trouble. Magnesium oxide board is easy to cut and shape. You can use regular tools. You attach it with screws or nails. You do not need special tools. You can paint, tile, or wallpaper the surface.
Tip: Always read the instructions from the maker. Use the right screws or nails for your job.
You pay more for magnesium oxide board at first. You save money later because it lasts and needs fewer repairs. You get good fire safety, water protection, and easy setup for every project.
You see why magnesium oxide board stands out for construction in 2025. You get strong fire resistance for walls, floors, and ceilings. The board protects your building from fire and water. You use it in homes, schools, and offices. You save money because it lasts longer.
Choose magnesium oxide board for your next project if you want better fire resistance and durability.
FAQ
What makes magnesium oxide board better than drywall?
You get stronger fire protection with magnesium oxide board. It resists water and mold. Drywall can break down in wet areas. Magnesium oxide board lasts longer and keeps your building safer.
Can you use magnesium oxide board outside?
You can use magnesium oxide board for exterior walls, soffits, and facades. It stands up to rain, wind, and heat. The board does not rot or attract bugs. You get durable protection for outdoor projects.
Is magnesium oxide board safe for bathrooms?
You can trust magnesium oxide board in bathrooms. It does not absorb water or grow mold. The board keeps walls strong and healthy in wet spaces.
Tip: Use magnesium oxide board behind tiles for extra moisture protection.
How do you install magnesium oxide board?
You cut magnesium oxide board with regular tools. You attach it using screws or nails. The board is easy to paint, tile, or finish. You save time on installation.
Step | Tool Needed |
|---|---|
Cutting | Utility knife |
Fastening | Screws or nails |
Finishing | Paint or tile |
Is magnesium oxide board eco-friendly?
You help the planet when you choose magnesium oxide board. It uses natural materials and does not release harmful gases. Many brands offer recycled options. You support green building with this choice.

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