1.5 mm XPS Vinyl Flooring Underlay – Thin, Practical Sheets for Click Vinyl and LVT
This high-density extruded polystyrene underlay is designed for vinyl flooring. Installed beneath floating click vinyl and LVT floors, it provides a thin intermediate layer between the subfloor and the floor covering.
At just 1.5 mm thick, it adds very little to the overall floor height. The convenient 100 × 50 cm sheet format makes measuring, cutting and installation straightforward.
Key Features
• Designed for use beneath click vinyl and LVT flooring.
• Just 1.5 mm thick for minimal additional floor height.
• Made from high-density extruded polystyrene, XPS.
• Helps compensate for minor localised subfloor imperfections.
• Easy to trim with a suitable cutting tool.
• Individual sheets allow you to order the quantity you need.
Subfloor Preparation and Installation
The subfloor must be clean, dry, level and sound. Remove dust, dirt and loose debris before installation. Larger uneven areas must be levelled beforehand; this underlay is not a substitute for a levelling compound.
Measure the installation area and cut the sheets to fit. Lay a single layer with staggered joints, placing the edges closely together without overlapping. Install the floating vinyl flooring over the underlay.
Technical Specifications
• Material: high-density extruded polystyrene, XPS
• Application: underlay for vinyl flooring
• Length: 100 cm
• Width: 50 cm
• Thickness: 1.5 mm
• Coverage per sheet: 0.5 m²
• Mass per unit area: 147.83 g/m²
• Water absorption: 0.68%
• Compressive stress: 115.9 kPa
Technical values are taken from the available product specifications.
What You Receive and How Much to Order
You receive 1 sheet covering 0.5 m². The order quantity refers to the number of individual sheets.
• 1 sheet = 0.5 m²
• 2 sheets = 1 m²
• 10 sheets = 5 m²
• 20 sheets = 10 m²
Calculation: required area in m² × 2 = number of sheets required. Round up to a whole number of sheets and allow extra for cutting waste.
Only the XPS underlay is included. Any flooring or tools shown are for illustration.











