Fiber cement boards for floors and flooring – 18 mm, 20 mm, 22 mm, 24 mm
Rainzcube sells fiber cement boards. Call 0720.075.705
Are you looking for a solid, stable, and durable solution for your floor, subfloor, or flooring? Fiber cement (also spelled fiber cement) boards are the right choice when you want a durable substrate for finishes such as parquet, laminate, vinyl (LVT/PVC), linoleum, carpet, tile, ceramic tile, or natural stone. Whether you are working on a light-frame house, a commercial building, a technical space, or a renovation project, fiber-reinforced cement board provides you with a secure foundation: moisture resistance, good fire performance (depending on the product), dimensional stability, and a "solid" feel when walking.
We sell fiber cement floor boards in thicknesses of 18 mm, 20 mm, 22 mm, and 24 mm, specifically designed for flooring/subflooring/rigid subflooring/dry screed applications.
What is fiber cement and why is it ideal for flooring?
Fiber cement is a mineral-based material reinforced with fibers (usually cellulose fibers), resulting in a rigid and stable board. You will encounter similar names such as:
- fiber cement board
- fiber cement boards
- fiber cement board
- fiber cement boards
- cement board
- cement slabs
- cement board
- fiber cement board
- fiber-reinforced cement board
In flooring, the major advantage is that you get a "mineral" substrate with high rigidity, compatible with a very wide range of construction systems and finishes.
Benefits of fiber cement boards for flooring and subflooring
1) Moisture and water resistance (for wet areas)
Compared to wood-based solutions (e.g., OSB) that can work better in humid conditions, fiber cement floor boards are an excellent option in spaces where moisture resistance is important:
- bathrooms, kitchens, laundry rooms
- hallways and entrances with traffic and dirt
- technical rooms, spaces with condensation
- covered semi-outdoor areas (depending on the system)
Important: in wet areas, we recommend the correct application of waterproofing and attention to joint and sealing details for a complete and durable system.
2) Dimensional stability and solid feel when walking
Mineral board provides a rigid subfloor that reduces the feeling of "springiness" and helps achieve a uniform floor. It is highly valued in projects where you want:
- Good flatness for vinyl/PVC/LVT
- Stable base for laminate flooring and floating floors
- Proper support for tiles and ceramic tiles (including larger formats, with compatible adhesives)
3) Mechanical resistance: traffic, impact, loads
Fiber cement is designed for technical applications. As a floor support, it can contribute to a more robust structure, especially when you choose the correct thickness (18/20/22/24 mm) and comply with the support pitch, fastening, and joints.
4) Good fire behavior (depending on the product)
As a material with high mineral content, fiber cement is often chosen for projects with high safety requirements. Depending on the product and system, there may be fire reaction classifications (type A1/A2, etc.). If you have a project with strict requirements, we can provide you with the technical information you need to make the right choice.
5) Resistance to mold and biological degradation
In flooring applications, long-term durability is important. A mineral substrate is generally less prone to problems such as rot or moisture-related deterioration when the system is installed correctly.
Available thicknesses: 18 mm, 20 mm, 22 mm, 24 mm – how do you choose?
We offer 18mm, 20mm, 22mm, and 24mm fiber cement for flooring and decking. The thickness is chosen based on the structure, loads, joist spacing, and type of finish:
18 mm fiber cement
- excellent for residential use
- subfloor for laminate, parquet, vinyl, linoleum, carpet
- balanced solution between rigidity and weight
- suitable for floors, attics, renovations (where heights are also important)
20 mm fiber cement
- increased rigidity compared to 18 mm
- Recommended for areas with heavier traffic or when you want a more "solid" feel.
- Very good as cement board for flooring in mixed projects (residential + light commercial)
22 mm fiber cement
- preferred thickness when high stability is desired
- Suitable for subfloors over lightweight structures (wood/metal), in compliance with installation details
- useful when installing more demanding finishes or when you want extra rigidity
24 mm fiber cement
- for high demands: heavier loads, heavy traffic, technical spaces
- Ideal when the project requires a more solid board or when maximum rigidity is desired.
If you tell us the type of substrate (concrete/wood/metal), the spacing of the supports, and the desired finish, we will quickly recommend the right thickness: 18 mm, 20 mm, 22 mm, or 24 mm fiber cement board.
Where is fiber cement used for flooring and decking?
Our tiles are suitable for:
- subfloor and floor in lightweight construction
- dry screed / dry leveling systems
- support for tiles and ceramics (in the correct system)
- support for parquet and laminate flooring
- support for vinyl/PVC/LVT (where flatness is critical)
- spaces with variable humidity (with waterproofing)
- modular construction projects / modular houses / modular containers, where rigidity, durability, and stable technical support are sought
Recommended installation (in brief) – to achieve a proper floor
A very good result depends on the "system," not just the board. General recommendations for installation:
- Flatness and stable support: eliminate any gaps in the structure before plating.
- Joints and seams: follow the perimeter seam and technological seams; do not "lock" the board into the walls.
- Correct fastening: mechanical fastening (screws/dowels) and/or compatible adhesives, depending on the substrate. Fastening distances and positioning at the edges are important.
- Joint treatment: depending on the system, joints can be filled/reinforced to achieve continuity and flatness.
- Waterproofing in wet areas: mandatory in bathrooms and areas exposed to splashing, with strips and corners where necessary.
- Preparation for finishing: vinyl/LVT usually requires a perfectly smooth surface; fine leveling may be necessary.
When cutting and processing: use suitable tools, extraction or controlled cutting, and protective equipment (mineral dust must be managed correctly).
Why choose fiber cement boards from us?
Availability for construction site orders, residential and commercial projects
Special thicknesses for flooring: 18 mm / 20 mm / 22 mm / 24 mm
Advice on choosing the right thickness for your project
Solutions for: rigid subfloor, tile backing board, parquet backing board, vinyl/PVC backing board
Durable, stable material, suitable for many applications
Rainzcube sells fiber cement boards. Call 0720.075.705.