Where Builders Order Bulk Polystyrene Directly Online In South Africa

Simpler, Faster & More Cost Effective!

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


Since 2016, We Remain The Most & Highest Rated National Google Customer Reviewed Bulk Polystyrene Supplier In South Africa


Order Directly Online Or Request A Quote Today

Why Polystyrene Product Company (Pty) Ltd

Established Nationally in 2016

Highest Google Reviewed Supplier

Anybody Can Order Direct

Respected Bulk Suppliers

Suppliers To Many Bulk Buyers

Polystyrene Specialists

Technical Experts

High Quality Products

Direct From Factory

Fast Ordering Platform

Well Known

Competitively Priced


No Minimum Orders

Over 35000 Facebook Followers

General Order Lead Times

We Cut Hundreds Of Orders, Nationally In South Africa, Every Day.


We Cut On A First-Come-First-Serve Basis So The Faster You Place Your Order The Faster It Will Get Cut.


For Cutting & Collection

 3 - 5 Working Days

For Cutting, Collection & Delivery

3 – 7 Working Days


We May Also Have Stock On The Floor. You Will Have To Call Us To Make Arrangements

Online / Offline Payment Options

You Can Order Online & Request An Invoice To Pay Via Normal EFT

You Can Order Online & Pay Via:


  • Visa Credit & Debit Cards

  • Mastercard Credit & Debit Cards

  • Builders Warehouse Store Cards

  • RCS Store Cards

  • Game Store Cards

  • Cape Union Mart Store Cards

  • Makro Store Cards

  • CTM Store Cards & More

  • Instant EFT (Online)

Polystyrene Cutting &  Distribution

We Cut & Deliver Polystyrene Nationally Directly From:


Cape Town


East London

Port Elizabeth



Our Online Ordering Platform Deals With Local Deliveries. Call If You Don't Find A Delivery Option.

Our Cutting Facilities Are Not Walk-In Shops.

All Our National Online Prices Exclude VAT.

PolyFloor - Polystyrene Floor Insulation Boards

Polyfloor -1200mm x 2500mm (3m2), concrete floor insulation boards give the thermal R-Values and compressive strength you need.
In stock
Product Details
Board Size (m2): 3m2
Brand: PolyFloor
Product Type: Polystyrene Surface Bed / Floor Slab Insulation
Availability: Delivered Nationally In South Africa & For Export
Estimated Lead Time: Currently 3 to 7 working days excluding weekends & public holidays
Fire Rating: B1
Applications: Surface Bed Insulation
Joining Mechanism: Butt Joint
Standard Board Width (mm): 1200

Order PolyFloor - Concrete Floor Insulation Boards Online

Currently On Special

Ordering our high quality, high density or extra-high density, PolyFloor - Concrete Floor / Surface Bed Insulation Boards nationally online is really easy and only takes a few minutes.

Each board is 3m2 so you will need to divide your total underfloor insulation requirement in, m2, by three to get the number of boards required. Order a few extra just in case.

The thicker the boards, the more insulation you get, invest well and choose your thickness wisely.

This is not a retrofit product. You only have one chance to install this product and that is before you cast your concrete slab!

See more about thermal insulation values below.

Ordering online is really simple You can either choose direct delivery to your location / site or to collect your order, after it is cut, directly from our distribution centers in:

Please note that all our online prices Exclude VAT.

Anybody can order our polystyrene nationally online and we have no minimum order quantity.

Our distribution centers are not walk-in shops. We cut and deliver polystyrene from these facilities and you can collect your order from them.

General order lead time is 3 to 7 working days for cutting & delivery, excluding weekends and public holidays. If you need product faster then please call us.

Our online ordering platform deals with local deliveries. If you don't find a delivery option online then you can either select the self-collection option online or call us for a delivery cost.

Collecting your polystyrene yourself is pretty easy.

There is a very good reason why builders, architects, developers and home-owners choose our PolyFoor Insulation Boards:

  • You know that our boards will give you the required thermal insulation
  • You also know that the density of our boards will give you the required compressive strength to stop the floor from failing under the slab weight.
  • Our prices are very competitive
  • Lead time is critical in concrete slab applications and we deliver!

We look forward to assisting you!

PolyFloor - Surface Bed Insulation Boards For Floor Slabs

Luxury homes and buildings should all have insulated concrete floor slabs and if underfloor heating is going to be installed then it is a building requirement to insulate the concrete slab before you cast it!

Insulating your concrete floor slab, before you cast it, really does make a huge difference to the overall thermal insulation of your home or building year round!

There is nothing worse that getting out of bed on a cold winters morning and stepping directly onto a freezing cold floor. PolyFloor insulation boards stop the cold soil below your concrete slab from cooling the concrete floor slab itself.

If underfloor heating is going to be installed then PolyFloor Insulation is essential because there really no point in heating the concrete floor slab and the cold soil below the floor slab.

Our PolyFloor insulation boards ensure that only the concrete slab is being heated and when the slab is at the right temperature then the insulation boards keep the slab at that temperature which in turn reduces the amount of electricity that is required to maintain a constant floor temperature.

So not only do our PolyFloor insulation boards regulate room temperature year round but they also save you a ton of electricity heating costs during the year.

The cost of installing these boards, before you cast your floor slab, is so insignificant compared to the huge luxury and costs savings it provide to building owners in the long run.

Obviously the thicker the boards the more insulation you get so invest wisely and choose your thickness well.

Thermal Insulation R-Value Requirements:

To get the required thermal insulation R-Value of 1, in terms of South African Building Regulations, you need a minimum board thickness of 40mm but the thicker you go the more insulation you get.

Recommended Thickness:

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.

Board Thickness Thermal Insulation (R-Value)
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)
300mm+ Contact Us

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 if you are uncertain.

Density Name Nominal 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

Architect & BOQ Specification

".......mm 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 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.

Online & Offline Payment Methods

Our Payfast Secure Encrypted Online Payment Gateway allows our customers to pay directly online using any of the following cards or options:

  • Visa Credit Cards & Debit Cards
  • Mastercard Credit Cards & Debit Cards
  • Makro Store Cards
  • Builders Warehouse Store Cards
  • Game Store Cards
  • Cape Union Mart Store Cards
  • CTM Store Cards
  • RCS Store Cards & More
  • Instant Online EFT Payment

Alternatively you can order online and request an invoice for normal EFT payment.

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Recently Supplied Projects


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

Polystyrene Insulation - Cape Town Convention Centre / Polyroof
PolyVoid - Structural Fill Blocks

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.

Bulk Buyer & Regular Buyer Quotes


Bulk Buyers or Regular Buyers will most likely qualify for bulk discounted rates based on order volumes. Please Explore Our Product Catalogue Above Before you complete our Product Specific Online Quote Forms below.

Our Quote Forms Can Take A Little Time To Load & Display.


Polystyrene Product Company

Your Trusted Specialists In Bulk Polystyrene For Concrete Floor Insulation, Cavity Wall Insulation, Concrete Roof Insulation, Thermal Ceilings & Void-Former Applications

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: sales@polystyrene.co.za