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Polystyrene Floor Insulation 25mm

SKU
20000569
Polystyrene Floor Insulation 25mm


The Polystyrene Floor Insulation 25mm is a lightweight, rigid insulation board designed to deliver exceptional thermal performance for domestic, commercial, and industrial flooring applications. Manufactured from expanded polystyrene (EPS), this insulation solution is an ideal choice for improving energy efficiency while providing long-lasting support beneath a wide range of floor finishes.

Product Features/Specifications:

Crafted from high-quality white EPS, each board measures 25mm in thickness, offering a smooth, clean appearance and easy handling. Designed to resist moisture and thermal loss, these boards are both durable and versatile—making them suitable for suspended, solid, or floating floor systems.

Detailed Product Benefits:

With a closed-cell structure, this insulation board significantly reduces heat transfer, helping to achieve compliant U-values and meet Building Regulations. Its lightweight composition ensures easy installation without compromising compressive strength, making it a cost-effective choice for underfloor heating systems or general floor insulation. The boards are also rot-proof, non-toxic, and maintenance-free, offering long-term peace of mind in any build.

Applications and Versatility:

Ideal for both new build and retrofit projects, the 25mm Polystyrene Floor Insulation is suitable for use beneath screeds, timber joists, or chipboard overlays. It enhances thermal comfort in domestic interiors, commercial spaces, and utility areas—delivering both functional efficiency and support for various flooring finishes, including laminate, vinyl, and carpet.

Features & Benefits List:

  • Lightweight and easy to handle
  • Excellent thermal insulation properties
  • Moisture-resistant and rot-proof
  • Compatible with underfloor heating systems
  • Compressive strength suitable for standard load-bearing applications
  • Maintenance-free and durable

Technical Specifications:

  • Thickness: 25mm
  • Material: Expanded Polystyrene (EPS)
  • Thermal Conductivity (λ): 0.038 W/mK
  • Board Size: Typically 2400mm x 1200mm (confirm at time of order)
  • Compressive Strength: ≥70 kPa
  • Water Absorption: <1% by volume

Additional Information:

Boards should be stored flat in a dry, sheltered area. While the product is lightweight, care should be taken to avoid contact with solvents or adhesives that may degrade EPS. Delivery is available in bulk or palletised loads—please check with your local branch for lead times and handling requirements.

For more information, please contact either:

  • Stoke: 01782 262211
  • Telford: 01952 200220
  • Email: orders@emerysltd.co.uk


£9.36 £7.80
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Polystyrene Floor Insulation 25mm


The Polystyrene Floor Insulation 25mm is a lightweight, rigid insulation board designed to deliver exceptional thermal performance for domestic, commercial, and industrial flooring applications. Manufactured from expanded polystyrene (EPS), this insulation solution is an ideal choice for improving energy efficiency while providing long-lasting support beneath a wide range of floor finishes.

Product Features/Specifications:

Crafted from high-quality white EPS, each board measures 25mm in thickness, offering a smooth, clean appearance and easy handling. Designed to resist moisture and thermal loss, these boards are both durable and versatile—making them suitable for suspended, solid, or floating floor systems.

Detailed Product Benefits:

With a closed-cell structure, this insulation board significantly reduces heat transfer, helping to achieve compliant U-values and meet Building Regulations. Its lightweight composition ensures easy installation without compromising compressive strength, making it a cost-effective choice for underfloor heating systems or general floor insulation. The boards are also rot-proof, non-toxic, and maintenance-free, offering long-term peace of mind in any build.

Applications and Versatility:

Ideal for both new build and retrofit projects, the 25mm Polystyrene Floor Insulation is suitable for use beneath screeds, timber joists, or chipboard overlays. It enhances thermal comfort in domestic interiors, commercial spaces, and utility areas—delivering both functional efficiency and support for various flooring finishes, including laminate, vinyl, and carpet.

Features & Benefits List:

  • Lightweight and easy to handle
  • Excellent thermal insulation properties
  • Moisture-resistant and rot-proof
  • Compatible with underfloor heating systems
  • Compressive strength suitable for standard load-bearing applications
  • Maintenance-free and durable

Technical Specifications:

  • Thickness: 25mm
  • Material: Expanded Polystyrene (EPS)
  • Thermal Conductivity (λ): 0.038 W/mK
  • Board Size: Typically 2400mm x 1200mm (confirm at time of order)
  • Compressive Strength: ≥70 kPa
  • Water Absorption: <1% by volume

Additional Information:

Boards should be stored flat in a dry, sheltered area. While the product is lightweight, care should be taken to avoid contact with solvents or adhesives that may degrade EPS. Delivery is available in bulk or palletised loads—please check with your local branch for lead times and handling requirements.

For more information, please contact either:

  • Stoke: 01782 262211
  • Telford: 01952 200220
  • Email: orders@emerysltd.co.uk


Delivery Information

We offer FREE local delivery on all orders over £120.00 (£100.00 excluding vat). For all other orders a £12.00 (£10.00 plus vat) local delivery charge will apply.

Please refer to our delivery radius maps below to see if you we deliver to your area. We aim to deliver stocked items usually within 2-3 working days but in busier periods this can sometimes take longer. On receipt of your order we will contact you as soon as possible to advise an intended delivery date, should this delivery date be inconvienent then we will try our best to accomodate a suitable delivery date. Our delivery radius maps below show the areas that we deliver to - we tend to deliver within 20 miles of our branches in Stoke-on-Trent and Telford on a regular basis.

Click & Collect Information

Orders can also be collected from either of our depots. We will contact you by phone or email when your order is ready for collection.

We aim to process your order and have goods ready for collection within the same working day (stocked items only) on all orders placed before 1pm, orders after 1pm will be ready the following working day. In the event of your ordered items being out of stock we will contact you with an estimated lead time on your order.