Marmox Soundboards 600x1250mm (Pack of 6)
Marmox Soundboards 600x1250mm (Pack of 6)
- Reduces impact (footfall) noise through tiled floors
- Provides a decoupling layer to help protect tiles and grout
- Typical impact sound reduction of up to approx. 20 dB
- Waterproof board suitable for bathrooms and wet areas
- Lightweight and easy to cut and install
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| Type | Backer Boards |
|---|---|
| Brand | Marmox UK |
Marmox Soundboard
Marmox Soundboard is an impact sound reduction board designed for use beneath ceramic and porcelain tiled floors. It helps reduce footfall noise transferring into rooms below while also acting as a decoupling layer to protect tiles and grout.
By combining a resilient rubber-foam acoustic layer with an XPS insulation core, Soundboard creates a break between the tiled surface and the structural floor, improving both acoustic comfort and floor performance.
Key features
- Designed to reduce impact (footfall) sound through tiled floors
- Typical impact sound reduction of up to approximately 20 dB
- Decoupling effect helps reduce stress on tiles and grout
- Waterproof board suitable for bathrooms and wet areas
- Improves thermal comfort beneath tiled floors
- Lightweight, rigid, and easy to cut on site
Technical details
| Product type | Impact sound reduction and decoupling board for tiled floors |
|---|---|
| Board size | 600 × 1250 mm |
| Thickness options | 8 mm or 12 mm |
| Construction | XPS insulation core with polymer cement coating, fibreglass reinforcement, and bonded rubber-foam acoustic layer |
| Thermal conductivity | 0.034 W/mK |
| Sound reduction | Approx. 20 dB impact sound reduction (installation dependent) |
| Water resistance | Waterproof board (joints and perimeters must be sealed in wet areas) |
Where it is used
Marmox Soundboard is suitable for use beneath tiled floors in both residential and commercial environments, particularly where reducing impact noise is important.
- Flats and apartments
- Upper-floor rooms and living spaces
- Bathrooms and wet rooms
- Kitchens and general tiled areas
- Projects aiming to improve acoustic performance
Installation notes
- Ensure the subfloor is clean, dry, level, and structurally sound
- Install boards rubber-side down using a flexible tile adhesive or suitable acoustic adhesive
- Leave a perimeter isolation gap of approximately 4 mm at walls and upstands
- Fill perimeter gaps with a flexible or visco-elastic sealant
- Tape all board joints before tiling
- Tile as normal using flexible adhesive and grout
Frequently asked questions
What type of sound does Marmox Soundboard reduce?
Marmox Soundboard is designed to reduce impact sound such as footsteps and movement noise transferring through tiled floors into rooms below.
Is Marmox Soundboard suitable for bathrooms?
Yes. The board itself is waterproof and suitable for wet areas when joints and perimeters are sealed correctly.
What is the difference between 8 mm and 12 mm boards?
Both thicknesses offer similar impact sound reduction, but the 12 mm board provides improved thermal insulation.
Will Soundboard help prevent tiles cracking?
Yes. The decoupling layer helps absorb minor subfloor movement, reducing stress transferred to tiles and grout.
Does this product help with building regulations?
Marmox Soundboard can assist in improving impact sound performance for Part E requirements, but overall compliance depends on the full floor build-up and installation.
UK Mainland & Scottish Highlands only
We do not deliver to Islands, Ireland or Northern Ireland
How is shipping calculated?
Shipping is based on your order weight and delivery location. Add items to your cart and enter your postcode to see the exact cost before checkout.
Some products supplied directly from our manufacturers (non-stocked brands) carry a separate delivery charge — this is shown clearly at checkout.
Free delivery on orders £450+ inc VAT
Tiles & tiling materials only · Free samples always ship free
Next working day delivery
Order before 12:00 pm · From £6.50 + VAT · APC Overnight or DPD · Under 50 kg
Not available weekends or bank holidays
No next-day to Scotland postcodes
AB · IV · KW · PA — please allow additional working days for these regions
Pallet delivery — orders over 50 kg
Semi, half or full pallet · Palletways or K & R Mason · Next working day
Kerbside delivery only — driver cannot bring goods onto the property
Supplier direct delivery (non-stocked products)
Some brands are shipped directly from the manufacturer and carry a separate delivery charge, shown at checkout.
Genesis (trims) — £19 + VAT · 1–3 days · cut-off 11:00 am
Marmox (mosaics, shower trays) — £15 + VAT · 1–3 days
Marmox (oversized backing boards) — £65 + VAT · 1–3 days
Schluter (trims) — £20 + VAT · 1–3 days
Bihui (trims) — £15 + VAT · 1–3 days
Free sample delivery
No minimum spend · Up to 4 free samples · Next working day
Free Click & Collect
Select Click & Collect at checkout to pick up your order from our Croydon warehouse. We'll send an email confirmation once it's ready — please wait for this before visiting.
Bring your order confirmation email or order number when collecting.
If someone is collecting on your behalf, they must have the order number and the name on the order.
Mon – Fri, 8:30 am – 4:30 pm. Closed weekends & bank holidays.
Tile Experience, 108 Beddington Lane, Croydon, London, CR0 4YY
Order tracking
Email or SMS sent by the carrier once your order is dispatched
30-day return window
Returns accepted within 30 days of delivery. You also have a statutory 14-day cancellation right from the date of receipt.
Items must be unused & in original packaging
Returned goods must be uninstalled, unaltered and in the same condition as received.
Installed or cut items cannot be returned
Once tiles or materials have been cut, altered or installed, no return or refund is possible under any circumstances.
How to start a return
Contact us first at info@tileexperience.co.uk or call 0208 689 4187. Send the item back with your name and order number. Return shipping is the customer's responsibility.
Refund to original payment method
Processed within 3–5 working days of us receiving and approving your return.
Original delivery charges are not refunded. If no refund after 15 business days, contact us.
Damaged or incorrect items
Report within 48 hours of receipt. Email info@tileexperience.co.uk with your order number and photos of the damage. Confirmed replacements are sent next working day at no charge.
Non-stocked brands — restocking fee may apply
Returns for Genesis, Marmox and Bihui carry up to a 20% restocking fee. Schluter trims: 35% standard return, 15% if returning with a replacement order.
Cancellations
Cancel before dispatch for a full refund including delivery. Cancel after dispatch by rejecting the delivery — refund for goods only, not the delivery charge.
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