Calcium Silicate Board

Strong buildings start with strong materials. Wall panels make it possible. They play an important role in today’s building and construction. The boards shape the structure, protect it from moisture, fire, and prepare the surface for finishing.

In the UK calcium silicate boards offer high strength, stability, and reliable fire resistance that lasts for years. Calcium silicate board is a strong, non-combustible sheet for fire protection, home construction, commercial interiors and service areas.

What is a Silicate board?

A silicate board (often called calcium silicate board), is a strong mineral sheet made from calcium and silicate compounds and reinforced with cellulose fibres for extra stability.

The mix of calcium and silicate compounds gives the board its strength and stability. It does not burn or deform when exposed to heat, and it stays firm even in humid or demanding conditions. Builders use it for fire rated walls, service shafts, and ceilings, as well as for lining areas around fireplaces or boilers.

The surface is smooth and easy to work with. It can be painted, plastered or tiled to match any design. Thanks to this flexibility, silicate boards have become a dependable and eco-friendly choice compared to plywood, cement boards or standard plasterboard.

What is calcium silicate board in UK used for?

• Builders often use the board for creating fire-safe walls, ceiling and room partitions. It performs impressively in areas that must meet building regulations, such as corridors, stairwells and service risers.
• It is non-combustible (Euroclass A1). Calcium silicate board provides lasting protection around heating equipment, chimneys and boiler rooms. It also does not burn, swell, or crack under heat, and it stays firm even in places with constant humidity or temperature changes.
• In industrial spaces, it helps protect structural steel, ducts and plant room enclosures, providing both insulation and fire resistance in one product.
• Homeowners use it as a reliable backer board behind fireplaces and wood stoves, where standard plasterboard or general purpose boards may not perform well.
• Architects and interior contractors appreciate that it can be painted, plastered or tiled to achieve a neat decorative finish without extra preparation.

Benefits of using A1 calcium silicate boards

A1 calcium silicate board is a trusted material on construction sites across the UK. Professionals use it for projects that require fire resistance, strength and long-term stability.

• Fire protection. The board has a Euroclass A1 fire rating, meaning it will not burn and produces very low levels of smoke. Similar in performance to Promat Supalux, it is used in fire rated walls, ceilings, shafts and boiler rooms across the UK. Please refer to the datasheet for full performance details.
• Dimensional stability. Calcium silicate boards do not bend, swell, or crack when exposed to heat or moisture. Each calcium board keeps its shape and surface smooth, even after years of use.
• Ease of installation. The surface is ready for paint, plaster or tile. Less preparation means faster work and fewer finishing problems on site.
• Durability and value. The board resists wear and does not need regular maintenance. It is a cost-effective choice that lasts, helping reduce replacement and labour costs.

Why Choose Our Silicate Boards?

At Sheet Materials Wholesale, we know what builders need on site: reliable materials, quick supply, and clear support. Our calcium silicate boards are rated Euroclass A1 and stay stable when heat, moisture, and pressure put others to the test.

We stock Ramco Hilux sheets in the standard 2440 x 1220 size and in several thicknesses, from 6mm, 10mm, 12mm, 16mm. Each board arrives smooth, even and ready for finishing.

• Fire performance you can trust. The boards are Euroclass A1 rated, so they do not ignite or release smoke. It is perfect for fire-rated walls, ceilings, ducts, and boiler rooms.
• Accurate sizing and clean finish. Consistent stock of 6, 10, 12 and 16 mm boards in 2440 x 1220, ready to load.
• Value you can see. Our calcium silicate board price stays fair without cutting quality, helping you meet safety standards on budget.
• Fast nationwide delivery. We ship across the UK, so your build keeps moving.
• A supplier you can speak to. At sheetmaterialswholesale.co.uk we recommend using calcium silicate boards in fire-rated interiors, service risers, and plant rooms across the UK. For calcium silicate board UK customers, we focus on stock, speed and support from quote to delivery.

Quality boards, fast delivery and real support. Get a quote from Sheet Materials Wholesale now.

FAQ

Where to buy calcium silicate board?

You can buy calcium silicate boards directly from Sheet Materials Wholesale online. We keep all main thicknesses; 6mm, 10mm, 12mm and 16mm.

What is a calcium silicate board used for?

It is mainly used in fire-rated walls, ceilings, partitions and boiler rooms. The boards are also popular behind fireplaces, around stoves, or in plant rooms where heat protection is needed. Because it stays strong and smooth, it can be painted, plastered or tiled after it is fitted.

What is a calcium silicate board?

Calcium silicate board is a strong, non-combustible building sheet. It is designed to resist fire, moisture and heat, making it a safe choice for both residential and commercial projects.

What is calcium silicate board made of?

It is made from natural materials, mainly calcium and silicate compounds, reinforced with cellulose fibres. This mix makes the board light, solid and resistant to heat or humidity.

How to cut calcium silicate board?

You can cut it with a fine-tooth saw or a power saw with dust extraction. Always mark your line first, cut slowly and wear a mask with eye protection. For small jobs, a simple score and snap method with a utility knife also works well.