25mm Kingspan Kooltherm K103 Floorboard (pack of 12)




25mm Kingspan Kooltherm K103 Floorboard (pack of 12)
Price: £428.04 (£513.65 inc VAT)
Price per m2: £12.39/m2 (£14.86 inc VAT)
2 or more £460.01 (£552.01 inc VAT)
3 or more £452.34 (£542.81 inc VAT)
4 or more £440.84 (£529.01 inc VAT)
- Product Code: A1-2076
- Delivery Time: 3 - 7 days
- Brand: Kingspan (Tech. support: 01544388601)
- Model and Size: 2400x1200mm - 34.56m2
- Weight: 34.56kg
Our ratings on 12-06-2025:

4.8 out of 5
25mm Kingspan Kooltherm K103 Floorboard (pack of 12)
Width: 1200mm
Length: 2400mm
Pack Quantity: 12
Density: 40kg/m3
Weight/m2: 1kg
Weight: 34.56kg
Thermal Conductivity: 0.019W/mK
R-Value: 1.32m2K/W
Compressive Strength: 120kPa
25mm Kingspan Kooltherm K103 Floorboard is a premium performance lower lambda insulation with a fibre-free rigid thermoset phenolic core. The board faced on both sides with a glass tissue based facing, autohesively bonded to the insulation core during manufacture. It used for insulating beam and block, concrete, and timber floors. If correctly installed, Kingspan Kooltherm K103 Floorboard can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.
APPLICATION
- Beam and Dense Block Ground Floors
- Suspended Timber Ground Floor
- Solid Concrete Ground Based Floor


- Premium performance rigid thermoset insulation
- Unaffected by air infiltration
- Resistant to the passage of water vapour
- Fire Rating (Reaction to Fire) - Euroclass: C-s2,d0
- Easy to handle and install can reduce the cost of related items - soil removal, service connections
- Ideal for new build and refurbishment
- Resistant to short term contact with petrol and with most dilute acids, alkali and mineral oils
- Resist attack by mould and microbial growth, and do not provide any food value to vermin
Kingspan Kooltherm K103 is manufactured under a
- management system certified to ISO 9001: 2015 (Quality management systems),
- ISO 14001: 2015 (Environmental management systems),
- ISO 37301: 2021 (Compliance management systems),
- ISO 45001: 2018 (Occupational health and safety management systems)
- ISO 50001: 2018 (Energy management systems).
BBA Certificate 16/5299
Brand: Kingspan
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1 - 5 working days
150mm Kingspan Thermawall TW55 is a high-performance rigid insulation board designed specifically for use in wall applications, particularly in new build and refurbishment projects. Manufactured using a premium polyisocyanurate (PIR) core, this insulation board offers exceptional thermal performance..
Guide Price: £268.97
£322.76 inc VAT
Brand: Kingspan
Model and Size: 2400mm x 1200mm - 43.2m2
Delivery Time: 3 - 5 days
52.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance, lower lambda internal wall insulation, with a fibre-free rigid thermoset phenolic core. It has a 12.5mm plasterboard bonded to its front surface and a composite foil based facing on its reverse surface. It is suitable fo..
£1,188.18
£1,425.82 inc VAT
Brand: Kingspan
Model and Size: 1200mm x 2400mm - 34.56m2
Delivery Time: 3 - 5 days
25mm Kingspan Kooltherm K10 Soffit Insulation Board is a premium performance insulation solution specifically designed for soffit applications. It comprises a fibre-free rigid thermoset phenolic insulation core, which delivers exceptional thermal performance with a low thermal conductivity of just 0..
Brand: Kingspan
Model and Size: 1200mm x 600mm - 0.72 m2
Delivery Time: 2 - 3 working days
25mm Kingspan Kooltherm K5 External Wall Insulation Board is a premium performance external wall insulation board specifically designed for masonry walls. It features a rigid phenolic foam core, providing exceptional thermal insulation properties that help reduce energy consumption and enhance the o..
Brand: Kingspan
Model and Size: 2400mm x 1200mm - 34.56m2
Delivery Time: 3 - 5 days
62.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance, lower lambda internal wall insulation, with a fibre-free rigid thermoset phenolic core. It has a 12.5mm plasterboard bonded to its front surface and a composite foil based facing on its reverse surface. It is suitable fo..
£1,101.36
£1,321.63 inc VAT
Brand: Kingspan
Model and Size: 2400mm x 1200mm - 60.48m2
Delivery Time: 3 - 5 days
37.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance, lower lambda internal wall insulation, with a fibre-free rigid thermoset phenolic core. It has a 12.5mm plasterboard bonded to its front surface and a composite foil based facing on its reverse surface. It is suitable fo..
£1,643.15
£1,971.78 inc VAT