
Linx Square
inc. VAT
Free Samples
See the finish before you commit
Trade Account
Trade prices on every range
Expert Advice
Speak to our team · 020 4634 2203
Free Delivery
On orders over £300
Sold By The m²
Calculator on every tile and floor
Klarna & PayPal
Spread the cost, subject to status
Free Samples
See the finish before you commit
Trade Account
Trade prices on every range
Expert Advice
Speak to our team · 020 4634 2203
Free Delivery
On orders over £300
Sold By The m²
Calculator on every tile and floor
Klarna & PayPal
Spread the cost, subject to status

Trade Prices
Always trade prices, never retail markup.
UK Delivery
£50 flat rate • up to 20 business days.
FENSA Fitting
Professional install available.
by Linx Square
SKU: BOU34004
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Linx Square
inc. VAT

Linx Square
inc. VAT

Linx Square
inc. VAT

Linx Square
inc. VAT
*SPECIAL ORDER*
Bona U340 is a polyester fibreboard underlay (4mm) that reduces the stress transferred to the sub-floor when installed prior to the final floor covering, such as ceramic tiles, natural stone and wood flooring.
Sold singularly, board size 0.6sqm
Bona U340 is a polyester fibre board to be used as a stress relieving decoupling layerbelow floor coverings such as parquet and other floor coverings. It can be used onpoor–quality surfaces, like cracked or weak subfloors, or before the installation of solidparquet types on dry screeds or particle boards. The high compressive strengthrenders it capable of tolerating high loads (up to 5.0 kN/m²). It is suitable for use indomestic and commercial premises. Additionally, the impact sound becomes reduced.It is unaffected by damp and fungal decay. Due to its low heat transmission coefficientBona U340 may even be installed on warm–water floor heating.• Stress relieving• Water and rot proof• Suitable as height adjustment• Bridges cracks /breaks in the subfloor• Reduces sound transmission• Easy to handle• Very low emissions – EMICODE EC1 Plus• Traffic load up to 5 kN/m²