Kingspan Kooltherm K103 Phenolic Floorboard 2400 × 1200mm – 75mm (Pack of 4, 11.52m²)
Kingspan Kooltherm K103 Phenolic Floorboard 2400 × 1200mm – 75mm (Pack of 4, 11.52m²)Spread the cost: pay in 3 with Klarna, PayPal or Shop Pay at checkout Subject to status.
Bulk orders? Call 03330 908479 or contact us for a bulk quote.
Free delivery across England on qualifying orders, usually 2-5 working days. Need it urgently? Our dedicated man and van service can make urgent drops, next working day when you order by 5pm (Mon-Fri). Extra charge applies. Get a courier quote
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Free delivery with forklift offload across mainland England, including Devon & Cornwall (min order £400 ex VAT).
Delivered by Moffett lorry (truck-mounted forklift) – we’ll call to arrange a delivery day that suits you.
Delivery details · Questions? Call 03330 908479
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- Genuine manufacturer stock
- Trade pricing, shown ex VAT
- Call 03330 908479 for bulk quotes
Kingspan Kooltherm K103 is a phenolic floorboard (phenolic insulation core, glass tissue facings) for solid concrete and suspended timber floors. It has a declared thermal conductivity of 0.019 W/mK and, at this thickness, a thermal resistance of 3.90 m²K/W according to the manufacturer's datasheet. Kooltherm K-range boards are sold by the full pack only: this listing is for 4 boards covering 11.52m².
Specifications
| Brand | Kingspan |
|---|---|
| Thickness | 75mm |
| Board size (L × W) | 2400 × 1200mm |
| Material | Phenolic insulation core, glass tissue facings |
| Thermal conductivity (λ) | 0.019 W/mK |
| Thermal resistance (R-value) | 3.90 m²K/W |
| Reaction to fire | Euroclass C-s2,d0 |
| Product standard | BS EN 13166 |
| BBA certificate | 16/5299 |
| Boards per pack | 4 |
| Coverage per pack | 11.52m² |
| Sold as | Full pack of 4 boards (11.52m²) – full packs only, packs are not split |
Delivery
Free delivery to England on every order; minimum order £400 + VAT. Delivered by Moffett lorry (forklift offload); someone must be present to receive it.
Downloads & technical information
- Kingspan Kooltherm K103 technical datasheet (PDF)
- Kingspan Kooltherm K103 Declaration of Performance (PDF)
- Kingspan Kooltherm K103 BBA certificate (PDF)
- Kingspan product page (manufacturer website)
See the full range of Kingspan insulation boards.
FAQs
Can I buy single boards?
No. This product is sold in full manufacturer packs only. One pack contains 4 boards (11.52m²) and the price shown is for the whole pack.
How many do I need?
Divide the area to be covered (m²) by 11.52m² and round up, then allow around 10% extra for cutting and waste.
What are the delivery charges?
Free delivery to England on every order; minimum order £400 + VAT. Delivered by Moffett lorry (forklift offload); someone must be present to receive it. We deliver to England only; we cannot deliver to Wales, Scotland, Northern Ireland or the islands.
Where can I find U-values and installation guidance?
See the manufacturer documents linked in the Downloads & technical information section above, or contact our team for help.
Thickness & R-value table
Thickness & R-value table
Kingspan Kooltherm K103 Phenolic Floorboard – all 11 thicknesses we stock.
| Thickness | λ (W/mK) | R-value (m²K/W) |
|---|---|---|
| 25mm | 0.019 | 1.30 |
| 40mm | 0.019 | 2.10 |
| 50mm | 0.019 | 2.60 |
| 60mm | 0.019 | 3.15 |
| 70mm | 0.019 | 3.65 |
| 75mm | 0.019 | 3.90 |
| 90mm | 0.019 | 4.70 |
| 100mm | 0.019 | 5.25 |
| 120mm | 0.019 | 6.30 |
| 140mm | 0.019 | 7.35 |
| 150mm | 0.019 | 7.85 |
R-value = thickness (m) ÷ thermal conductivity λ, using the λ declared for each product, rounded down to the nearest 0.05 m²K/W. Always check the manufacturer's declaration of performance and your U-value calculation for Building Regulations.
Delivery information
Delivery information
Insulation, plasterboard and drylining: free delivery, minimum order £400 ex VAT.
Timber, aggregates and cement: minimum order £250 ex VAT, £25 ex VAT delivery, free on orders over £500 ex VAT.
Suspended ceilings only (grid, tiles and wire): minimum order £350 ex VAT, free delivery.
We deliver to England only (not Wales, Scotland or Northern Ireland). Delivery timing depends on stock and location; contact us before ordering if your project has a deadline.
Deliveries arrive on a Moffett lorry (truck-mounted forklift) and are offloaded at your site. Someone must be present to receive the delivery, and we need a contact phone number for the driver.
