STS A1 Fire Rated Construction Cement Board 6mm


Sale price£176.28 

inc VAT

Pay in 3 prices shown are an example only. Total calculated at checkout.

Delivery within 3 - 5 working days

Free Delivery On Orders
Over £599.95 Ex-Vat

Need something quicker?

Contact us on 0300 303 4578
or email here!

High Performance & High Strength Render Carrier Board.

The STS Construction Board is a heavy-duty fibre cement board highly recommended by many leading render manufacturers.

It’s high strength and density create an impact resistant, dimensionally stable and weatherproof construction board which lends itself for use as an external render carrier.

The simple fibre cement composition provides a perfect surface on which to receive thin coat render systems such as the brands stated below.

By using the STS Construction Board you have the assurance of a solid foundation meaning not only a stunning render finish, but also the peace of mind that it will last for years and remain crack free. 

What is fibre cement board made of?

Portland Cement: binds the ingredients and is made with limestone, clay and iron. Cellulose Fibres: treated, organic fibres which act as a filler. Sand: highly durable and creates all weather performance. Water: dissolves the wood pulp; activates and hardens the cement. STS Construction Boards have no need of fibreglass mesh for strengthening, which of course is almost impossible to recycle and very irritable when cutting.

  • Euro Class A1 Fire Rating (BS EN 12467)

  • Impact Resistant

  • High Density

  • Weatherproof & Water Resistant

  • External Heavy-Duty

  • Maintains Minimum Board Movement

  • Render Ready

Suitable For:

  • Timber Frame

  • Lightweight Steel Frame

  • Offsite/Modular Build

Technical Data:

  • Board Dimensions & Weight - 2400mm x 1200mm

  • Test Standard - BS EN 12467:2016 + A1:2016

  • Density - 1.28g cm3

  • Bending Strength (dry) - 12.46 MPa

  • Bending Strength (saturated in warm water) - 12.91 MPa

  • Reaction to Fire - EuroClass A1  Non-Combustible (A1fl)

  • Test Standard - EN ISO 1182 & EN ISO 1716

  • Fire Insulation - BS 476 part 22 118 min burn time for timber frame party wall

  • Test Standard  - EN ISO 1182 & EN ISO 1716

  • Thermal Conductivity - ≤0.25W/ (m.k)

  • Density - 1.23g/cm3

Applications Brochure - Click Here

Need bespoke cutting of STS boards? See our cutting service HERE



Order Value Delivery Charge
Up to £200.00 ex-vat £100.00 ex-vat
£200.00 - £599.95 ex-vat £59.95 ex-vat
Above £599.95 ex-vat Free Delivery


Weekend Delivery
Available upon request


Parcel Rates
Delivery charge may vary depending on quantity and volume of your order.
Pricing will be calculated during checkout.


Local Delivery Charge
Within 35 miles of Postcode S63 9BL - Up to £500.00 ex-vat
Delivery Charge £35.00 ex-vat
Please contact us to arrange collections
Tel: 0300 303 4578 | Email:


Delivery charges will automatically be calculated within the checkout process.
Orders are only processed for delivery between 8.00am - 5.00pm Monday to Friday excluding bank holidays.
Moffett offload will be used for large bulky deliveries and only when agreed with you.
Please advise of any access issues on ordering.
Delivery is Kerbside only.
In the unlikely event that your delivery is not correct or damaged please notify us immediately and mark any issues on the delivery slip.


    Where We Deliver

    Delivery Areas

    We have a fleet of FORS delivery vehicles all with Moffett mechanical off loads that deliver nationwide. Sometimes we may use 3rd party carriers for smaller orders.


      Product Delivery Times

      The vast majority of our orders are dispatched within 3 working days, this can however be up to 5 working days, please contact us if you require something urgent.
      Speciality items may take up to 5-7 working days.
      We will contact you with in 24/48hrs of your order been placed to confirm delivery times and dates.

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        Customer Reviews

        Based on 1 review
        K Thomas
        STS A1 Fire Rated Construction Cement Board 6mm

        Good quality boards