Pre-Order Your Bulk Polystyrene Nationally Online In Seconds! 

Respected National Suppliers Of ISO / SANS Rated (EPS) Expanded Polystyrene Sheets, Blocks, Polystyrene Insulation, XPS Extruded Polystyrene Ceilings Boards, XPS Cornice Blocks, Beads / Regrind & Void Formers In Johannesburg, Cape Town, Durban, East London & Port Elizabeth & For Export


Johannesburg (Gauteng)

011 678 5626

Cape Town (Western Cape)


021 200 5926

Durban (Kwazulu-Natal)

031 940 7056

East London & PE

087 095 3259

National Sales

PolyFloor - Polystyrene Surface Bed Insulation Boards

Extended Special Ends 18th June 2021
In stock
Product Details

PolyFloor - High-Density Polystyrene Surface Bed Insulation Boards

Extended Special Ends 18th June 2021!

PolyFloor, High & Extra-High Density, Fire-Retardant, Surface Bed Insulation Boards are a very cost-effective solution for insulating concrete floor slabs and ordering them nationally online could not be easier!

Order Collections & Deliveries

Depending on the size of your order, you will have the option to request delivery or to self-collect your order, once cut, from our distribution centers located in:

  • Strydompark in Gauteng
  • Philippi in Western Cape
  • Clairwood in Kwazulu-Natal
  • Wilsonia in East London or
  • Neave Industrial in Port Elizabeth

Order lead time is generally 3 to 5 working days for cutting and delivery, once payment reflects in our bank account. This lead time excludes public holidays and weekends. If you need product faster please call us so that we can try and assist.

Please note that these standard sheets and blocks will not fit in a normal vehicle.

Don't miss out on our current builder online special, check out our google service reviews and when you are ready just order your PolyFloor Insulation boards nationally online!

Per m2 Prices

The prices displayed are board prices, excluding VAT. If you are looking for quick per m2 prices, then just divide the board prices by 3 since each board is 3m2.

About PolyFloor Insulation & Concrete Floor Insulation

Thermally-efficient buildings start with quality floor insulation so insulating your concrete floor slab, before you cast it makes a difference!

PolyFloor insulation is the layer of engineered polystyrene insulation that is placed between the compacted soil bed and the concrete slab before it is cast.

Concrete floor insulation is not expensive and by installing it your concrete floor slab will remain at room temperature all year round instead of becoming excessively cold to the touch during our winter months in South Africa.

Of course, if you are going to install underfloor heating then concrete floor slab insulation is a building requirement in terms of SANS 10400 Part XA. It will reduce your underfloor heating costs significantly!

PolyFloor, High-Density, Fire-Retardant, Expanded Polystyrene, Concrete Floor Insulation Boards are an extremely cost-effective product to use in this application.

We recommend 40mm or 50mm PolyFloor Insulation Boards In South Africa to meet the minimum thermal insulation requirement (R-Value of 1) in residential buildings but often clients choose to install thicker boards for more insulation. Find out more about the thermal values, compressive strength and installation of this product below.

You should also have a look at our PolyWall - Cavity Wall Insulation Boards because these are more that often ordered at the same time as our PolyFloor Product.

PolyFloor Thicknesses & Thermal R-Values:

Thermal R-Values are thermal insulation values, not to confused with costs. They are a measure of the thermal insulation that a product will provide by thickness of material.

Board Thickness Thermal Insulation (R-Value)

40mm 1.143 (Residential Insulation)
50mm 1.429 (Residential Insulation)
75mm 2.145 (Residential Insulation)
100mm 2.857 (Residential Insulation)
120mm 3.429 (Cold Room Insulation)
150mm 4.286 (Cold Room Insulation)
200mm 5.714 (Freezer Room Insulation)
300mm 8.571 (Freezer Room Insulation)

PolyFloor Densities & Compressive Strength:

PolyFoor Insulation is only sold in High & Extra High Densities due to the loading and compressive strength requirements of the boards in this applications.

  • In residential applications a high density board can be used.
  • In commercial or Industrial applications and Extra High Density (24kg/m3 to 30kg/m3) must be used.
  • Low and medium density polystyrene will fail in this application.
  • Consult with your local engineer is you are uncertain.
Type Density Compressive Strength
High Density 20 kg/m3 110 KPa @ 10% Compression
Extra High Density 24 kg/m3 to 30 kg/m3 160 to 200 kPa @ 10% Compression

When Should You Order These Boards?

These boards should be ordered when the foundations are being built and a week before you are going to cast the concrete floor slab!

Architect & BOQ Specification

" x 1200mm x 2500mm High Density, Fire Retardant, PolyFloor Surface Bed Insulation By Polystyrene Product Company. Specifically Designed For Below Surface Bed Or Below Concrete Floor Insulation Applications."

How To Order:

The online ordering process is really very quick and easy!

  • First select the thickness required (this affects the thermal insulation)
  • Each board is 3m2, so dividing your total insulation area by 3 will give you the number of boards you need to order.
  • Add the board and quantities you want to your order cart.
  • Select collection or delivery depending on the options available.
  • You can pay online or submit your order to us for review.
  • Simple, Fast & Reliable!

How To Install PolyFloor Insulation Boards

  • First the brick foundation walls are built.
  • The soil is then placed and compacted.
  • A DPC plastic layer is them placed on the compacted soil.
  • The polystyrene is then cut and laid tightly on top of the plastic layer.
  • Steel mesh is then placed on top of the polystyrene insulation layer with spacers.
  • The concrete is then poured on top of the polystyrene insulation layer.

About Polystyrene Product Company (Pty) Ltd

Polystyrene Product Company, established nationally in South Africa in 2016, is a well known & respected bulk national supplier of polystyrene sheets, blocks, insulation, extruded polystyrene ceilings & void-formers in South Africa & for export.

Since 2016, we have supplied polystyrene to over 14000 customers nationally in South Africa, Botswana, Mozambique, Zambia, Zimbabwe & Mauritius. We have also supplied bulk polystyrene to many of the biggest construction projects in South Africa.

We are the #1 National Online Ordering Platform For Bulk Polystyrene In South Africa, making it easier and faster for architects, builders, bulk buyers & the general public to order polystyrene online in SA.

CO. Reg Number: 2016/072709/07

VAT Number: 4220273447

National Sales & Logistics (Johannesburg) 011 678 5626

Cape Town Sales 021 200 5926

Durban Sales 031 940 7056

East London & PE Sales 087 095 3259

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Let's Explore Your Green Building & Polystyrene Requirements Together!

Recent Projects Supplied

Cape Town Convention Center Extension Concrete Roof Insulation Project

1400m2 of 120mm Extra-High Density Concrete Roof Insulation (PolyRoof Insulation) Laid On Top Of Torch-On Waterproofing With Paving Overlay

Hydroboard Insulation_edited.jpg
PolyVoid - Structural Fill Blocks.jpg

Nelson Mandela Children's Hospital Raised Slab Project 

3000m2 of 50mm Extra-High Density Concrete PolyVoid Fillers To Raise An Existing Concrete Slab By 1m. Extra-High Density Polystyrene Has Incredible Compressive Strength Properties.


Polystyrene Product Company

Polystyrene Product Company Was Established In 2016 And Today It Is One Of The Leading National Suppliers Of Bulk Polystyrene To The Construction And Manufacturing Industries In South Africa And For Export.

National Sales & Head Office


Unit 8, Lower Ground Level, Commercial City, Tungsten Rd, Strydompark, Randburg, 2194

VAT Number: 4220273447

CO. Reg Number: 2016/072709/07

Main Office Number:

011 678 5626


Main Email: