Hardiebacker 1200mm x 800mm x 12mm

Key features

• Non-combustible A1 fire rating for safety in high-heat and fireplace applications
• Fully moisture-resistant core prevents swelling, warping and mould growth in wet areas
• Smooth, stable surface supports heavy materials including natural stone and large-format tiles
• Lightweight and easy to cut with standard hand tools, reducing installation time
• Dimensionally stable substrate ensures precise detailing and clean tile finishes
• Bonds reliably with standard tile adhesives and grouts without additional primers
• Suitable for bathrooms, kitchens, utility spaces and moisture-exposed interiors
• Non-toxic fibre cement composition safe for residential and commercial use

Specifications

Length

1200mm

Width

800mm

Thickness

12mm

Material

Fibre cement

Fire Rating

A1 non-combustible

Moisture Resistance

Fully resistant to moisture penetration and swelling

Surface Finish

Smooth

Weight

Approximately 11.5kg per sheet

Density

Approximately 1200 kg/m³

Compressive Strength

High-performance fibre cement

Suitable Adhesive

Standard tile adhesive (cement-based or modified)

Cutting

Compatible with standard hand saws, circular saws and tile cutters

Common applications

• Bathroom wall substrate behind ceramic and porcelain tiles
• Kitchen splashback and worktop upstand backing
• Shower enclosure walls and wet room construction
• Fireplace surround and high-heat area protection
• Utility room and laundry wall substrate
• Wet room floor substrate preparation
• Steam room and sauna wall backing
• Commercial kitchen and food preparation area walls
• Moisture-prone interior wall lining in new build and renovation
• Large-format tile and natural stone substrate in residential projects

Search keywords

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Description

Hardiebacker 1200mm x 800mm x 12mm is a fibre cement backerboard that delivers a stable, non-combustible base for interior wall and floor finishes in moisture-prone environments. Its smooth surface is engineered to support heavy tile formats and natural stone without deflection, whilst its A1 fire rating provides safety assurance in high-heat applications such as fireplace surrounds. The board resists moisture penetration, swelling and mould growth, ensuring long-term durability in bathrooms, kitchens and utility spaces where conventional plasterboard would fail.

Lightweight and easy to cut with standard tools, Hardiebacker installs quickly without specialist equipment, reducing labour time on site. Its dimensional stability allows precise detailing and clean finishes, and it bonds reliably with tile adhesives and grouts. The 12mm thickness suits most residential and light commercial tiling projects, offering a cost-effective alternative to thicker boards where standard performance is required.