Hardie CTU 6mm Tile Underlay (1800 x 1200mm) is a fibre cement substrate designed to stabilise and strengthen floors and walls before tiling. It helps prevent tile cracking by minimising movement over timber and other subfloors. Moisture-resistant and dimensionally stable, it provides a reliable base in bathrooms, laundries, and kitchens. Easy to cut and fix, it offers consistent thickness and a smooth surface for adhesive application. Suitable for residential and light commercial projects seeking a durable, professional tiling substrate.

$29.95

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