28mm Acustop Acoustic Floor Deck
2400mm x 600mm | 1.44m² per board
Express delivery, 2 to 3 working days*
FREE delivery over £500 excluding VAT
*Selected postcodes. Confirmed at checkout or call 03003 034 578.
28mm Acustop Acoustic Floor Deck
2400mm x 600mm | 1.44m² per board
Express delivery, 2 to 3 working days*
FREE delivery over £500 excluding VAT
*Selected postcodes. Confirmed at checkout or call 03003 034 578.
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Product Description
Product Description
28mm Acustop Acoustic Floor Deck is a P5 moisture resistant tongue and groove chipboard bonded to a 100% twice recycled 10mm PET resilient mat, supplied as a 2400mm x 600mm board covering 1.44m². Unlike a slimline overlay, it can work either as an overlay across an existing timber, concrete or screed subfloor, or as the structural deck itself fixed direct to timber joists over acoustic joist isolation strips.
That direct to joist application carries a firm limit. The 28mm board can only be fitted at a maximum of 400mm joist centres with joist strips. Where joists are built at 600mm centres, the 32mm board is required instead. Boards laid direct to joists run at 90° to the joists, no board is installed with unsupported ends, and it remains the customer's responsibility to confirm the joists or subfloor can carry the load, with noggins or additional bracing fitted where needed.
Under laboratory test to BS EN ISO 10140-3:2021 and rated to BS EN ISO 717-2:2020, the board returned a weighted reduction of impact sound pressure level of ΔLw = 20 dB, with spectrum adaptation terms of C<sub>I,Δ</sub> −11 dB and C<sub>I,r</sub> 0 dB. Tested again over 5mm Acustop decoupling isolation strips at 600mm centres, the same board returned ΔLw = 25 dB, with C<sub>I,Δ</sub> −9 dB and C<sub>I,r</sub> −2 dB. Testing was carried out at the University of Salford.
That five decibel difference is the most useful thing on the datasheet. It shows how much of the result comes from decoupling rather than from the board, and it is the reason the isolation strips and perimeter strip are specified components rather than accessories. Both figures are product-level laboratory results showing the improvement the board adds over an existing floor structure that already reduces some impact noise. Neither is a whole-floor result, and neither on its own demonstrates compliance with Approved Document E, which is a whole-construction requirement verified by pre-completion testing or Robust Details.
Reaching those standards depends on the complete Tekfon system, and the ceiling below matters as much as the deck above. The specified treatment is two layers of 15mm acoustic plasterboard fitted to resilient bars at 400mm centres, plus a 100mm 60kg/m³ slab between the joists or in the ceiling void, with all edges sealed using acoustic sealant.
The chipboard is P5 grade to resist moisture, PEFC and FSC certified, and carries a heat-treated green top surface that stands up to site traffic before the finish goes down. Boards are laid in a half bond pattern, starting as far from the doorway as possible, with tongues cut from any board abutting a wall. Tongue and groove joints are glued top and bottom with the Tekfon Water Resistant 2 in 1 Adhesive. Mechanical fixings are not used except where two cut edges meet at a doorway, and the floor is left untrafficked for at least 24 hours before skirtings and finishes.
On finishes, the deck takes carpet with underlay, LVT and vinyl directly, and unlike the slimline MDF board it can also be tiled over when used with a decoupling mat, which opens it up to kitchens, bathrooms and utility areas where a tiled finish is expected.
Key Benefits of 28mm Acustop Acoustic Floor Deck:
- Works as a structural deck direct to joists at up to 400mm centres, or as an overlay on timber, concrete and screed subfloors.
- Laboratory tested reduction of impact sound pressure level of ΔLw = 20 dB, rising to 25 dB over 5mm Acustop decoupling isolation strips at 600mm centres.
- Tested to BS EN ISO 10140-3:2021, rated to BS EN ISO 717-2:2020 at the University of Salford.
- 2400mm x 600mm board covering 1.44m², so fewer boards and fewer joints across a large floor.
- P5 moisture resistant chipboard with a heat-treated green surface that takes site traffic.
- PEFC and FSC certified chipboard, bonded to a mat made from 100% twice recycled PET using 14 bottles per board.
- Tongue and groove edges glued top and bottom for a continuous, tightly jointed deck.
- Can be tiled over when used with a decoupling mat, as well as taking carpet with underlay, LVT and vinyl.
- PET mat is considered hypoallergenic and the board is extremely low in VOCs.
- Suits four build-ups: acoustic cradles, concrete or screed subfloor, timber subfloor and direct to timber joists.
28mm Acustop Acoustic Floor Deck good to know:
- Direct to joists, the 28mm board is limited to 400mm joist centres with joist strips. At 600mm centres the 32mm board must be used instead. Getting this wrong is the most common specification error on this range.
- Boards fixed direct to joists are laid at 90° to the run of the joists, and no board is installed with unsupported ends.
- The tested performance applies to the complete Tekfon system. All specified components must be used, and the acoustic ceiling treatment below is integral to how the floor performs.
- The published ΔLw figures are product-level results, not whole-floor ones, and do not on their own demonstrate compliance with Approved Document E.
- The acoustic perimeter strip is a required component, isolating the deck from the surrounding structure and skirtings.
- Boards measure 2400mm x 600mm and are sold individually, each covering 1.44m².
- Tongue and groove joints are glued top and bottom with the Tekfon Water Resistant 2 in 1 Adhesive. Mechanical fixings are not used except where two cut edges meet at a doorway.
- Leave the floor untrafficked for at least 24 hours after laying, before skirtings and floor finishes go down.
- A tiled finish is possible over this deck, but only in conjunction with a decoupling mat.
- In bathrooms and kitchens, units are mounted on a separate plywood or OSB platform on isolating pads rather than fixed straight through the board.
- Pipe and service penetrations pass through an oversized hole sealed with Tekfon Acoustic and Intumescent Mastic.
- P5 chipboard is moisture resistant but not waterproof: store boards flat, off the ground and dry before installation.
For separating floors in conversions, new build and refurbishment alike, the 28mm deck covers more ground per board than a slimline overlay and can carry the floor itself where joist centres allow, with two published test figures showing exactly what the board does and what the decoupling adds.
Certifications & Standards
Certifications & Standards
Technical Datasheets
Technical Datasheets
Customer Information
Customer Information
Free delivery on orders over £500 ex-VAT. All orders below £500 (ex-VAT) are subject to a £50 delivery charge.
Ordering & Delivery
How do I place an order with Insulation UK?
You can place an order for delivery anytime online. If you want to collect from our distribution centre in South Yorkshire then please email us your requirements at sales@insulationuk.co.uk
and we will send a payment link and collection instructions. If you can’t see what you are looking for or need more information, then call our team on 03003 034 578 and we can sort your order from there.
How do I know what’s happening with my order and when I will receive it?
When you have placed your order, you will then receive an email confirmation, giving you an order reference number and asking you to double check everything is correct on your order such as delivery address, quantities etc. If there are any amendments to be made, then please reply to your confirmation email with any details.
Once the team has processed the order you will receive an email with a BY delivery date, this is the latest date you will receive your delivery.
Your final email will be a 24/48hr notification, on the day of the delivery if you need a more accurate ETA then contact the office on 03003 034 578.
Do you offer next-day delivery?
Yes, we do on certain lines, you will see our next day delivery products marked as NEXT DAY. Order before 12pm for next day delivery (charges will apply)
How much does delivery cost and how long will it take?
Standard delivery is £50 + VAT for all orders below £500 excluding VAT, above £500 excluding VAT delivery is free. Bespoke deliveries can be made but will incur charges. Each product page gives you an estimate delivery by date. For more accurate information call the team on 03003 034 578
Can I choose a specific delivery date or time slot?
We will endeavour to try and accommodate a preferred date, if you need a delivery on a certain day, then please call us on 03003 034 578.
Do you deliver nationwide?
We deliver across most of the UK; however, some postcodes are restricted due to their location. Check out our delivery map for more information. If you find that you are in area we don’t deliver to, we have access to a wide range of haulage options, please call the team on 03003 034 578 to discuss your requirements further.
Will the driver help unload the insulation products?
Most of our deliveries are made with vehicles with mechanical off-load (known as a moffett or fork-lift), the driver will leave them in a safe place of your choice. They will help as much as they are allowed but are not insured to bring anything into a property.
What happens if my order arrives damaged or incomplete?
In the unlikely event your order arrives damaged, then please contact within 48 hours at sales@insulationuk.co.uk with any images of the damage and the team will be in touch. If there is anything missing, then notify the team within 48 hours on 03003 034 578
What if my order doesn’t arrive and I have paid for trades to be on site, can I claim anything towards the costs I have incurred?
We advise not to have trades booked in and around the day of your delivery. Things can happen beyond our control, and your delivery may be delayed or abandoned. We cannot be held liable for any consequential loss such as tradesman wages etc.
Product Advice & Support
How do I know which insulation product is right for my project?
With such a variety of insulation products, we fully understand making sure you have the right one can seem daunting. Our team have over 50 years of experience in the construction industry and there isn’t a question they haven’t been asked! Speak to our technical team on 03003 034 578 and they will be happy to offer some help and guidance.
Do you offer technical advice or support before I buy?
Yes we do! Just call 03003 034 578 and ask for our technical team and we will be happy to support you.
Product Information & Suitability
Product descriptions on this website are provided as general guidance only and are not a substitute for the manufacturer’s Technical Data Sheet (TDS), fire classification information, and the project’s design/specification requirements. Suitability depends on the full build-up and intended use (including any requirement for encapsulation, coverings, and compliance with Building Regulations and the project fire strategy).
It is the customer’s responsibility to confirm, before ordering, that the product specification and performance are suitable for the intended application by reviewing the relevant TDS and taking professional advice where required. If you are unsure, contact us before purchase and provide your intended build-up so we can confirm what information we can support.
Nothing in this notice limits or excludes your statutory rights
Can I speak to someone to confirm product specifications?
Of course you can! There is also a range of data sheets and guides available on the product pages under Technical Information.
Are your products suitable for both DIY and trade customers?
Yes, they are. If you are new to DIY projects involving insulation,
then we advise to always do your research. We have a handy guides section which may help.
Do you offer fire-rated or eco-friendly insulation options?
Yes, we do. Fire ratings are indicated in the specification table on the product page, and our sustainable range is continually growing.
Pricing & Payments
Do you offer trade or bulk-buy discounts?
We always aim to offer the best price online; however we do offer project pricing for larger orders, speak to our sales team with your requirements on 03003 034 578.
What payment methods do you accept?
We accept all major cards including American Express, as well as Apple Pay, Google Pay and PayPal
Can I set up a trade account with credit terms?
We do offer trade accounts, however there are certain criteria we ask for, and any credit account application is subject to credit checks. Call the team on 03003 034 578 to discuss any credit applications.
Do your prices include VAT?
The website has a toggle at the top right of the page so the prices can be displayed including and excluding VAT. VAT, where applicable, is charged at checkout.
Returns & Cancellations
Can I return unwanted insulation products?
Contact the team via email sales@insulationuk.co.uk with the items you wish to return and any other information. Please note if we you need us to collect any unwanted items,
a collection fee will apply.
How do I arrange a return or exchange?
Contact the team via email sales@insulationuk.co.uk or check out our refund policy.
Are there any restocking fees?
Restocking charges will apply in certain instances, please contact the team via email at sales@insulationuk.co.uk check out our refund policy.
What if I’ve ordered incorrectly or need to cancel my order?
Contact the team via email as soon as possible. The best way to get in contact is to reply to any of the emails we have sent you, they will come straight through to the team and will have any relevant order information already on there.
Installation & Compliance
Do you offer installation services or just supply materials?
We do not offer any installation services; we are a supplier of insulation and building materials.
Can I get a datasheet or certificate of performance for your products?
Yes, data sheets can be found in the Technical Information drop down on the product page.
How should I store insulation products before installation?
There are a variety of insulation products each with their own storage instructions. Generally, please keep them off the ground, in a dry area, away from the elements.
Sustainability & Quality
Are your insulation products environmentally friendly?
This depends on the individual products, data sheets are available,
and any environmental benefits are noted on the product pages.
Do your products help reduce energy bills?
The correct insulation properly installed can reduce heat loss from a building and therefore help reduce energy costs.
Are your products made in the UK or imported?
With such a wide variety of products some are made in the UK and some are imported.
Customer Service & Support
How can I contact your support team?
By phone on 03003 034 578, email sales@insulationuk.co.uk or via our
webchat online
What are your opening hours?
Monday to Friday 8am to 5pm for sales and technical support, orders can be placed on line 24/7
How quickly can I expect a reply to my enquiry?
We aim to respond to our customers as quickly as possible.
Technical Details
- Brand:
- Tekfon
- Material:
- Chipboard
- Manufacturers Part Number:
- PR008042
- Size:
- 2400mm x 600mm x 28mm
- Length:
- 2400 mm
- Width:
- 600 mm
- Thickness:
- 28 mm
- Unit Coverage:
- 1.44 m²
- Qty Per Pack:
- 1 Items
- Edge Type:
- Tongue and Groove
Acoustic performance helps show how effectively a product or build-up can reduce sound transfer.
Impact performance relates to contact noise, such as footsteps or dropped objects. Where shown as Ln,w, lower dB figures generally mean better impact sound performance.
Airborne performance relates to sound travelling through the air, such as voices, music or traffic. Where shown as Rw, higher dB figures generally mean better sound reduction.
These figures should be checked against the product datasheet and considered as part of the full floor or ceiling build-up.
- Impact Performance:
- 62 dB
- Airborne Performance:
- 45 dB
