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Order Polystyrene Sheets, Ceilings, Insulation & Void Formers Nationally Online Today!

Explore Our National Polystyrene Products, Prices & Online Specials Below!

Why Bulk Buyers Choose Polystyrene Product Company?

Fast & Reliable

Direct National Distributions

Highest & Most Google Reviews

Trusted By Large Construction Companies

Competitive Prices

Long Track Record

Recent Projects That We Supplied

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Cape Town Convention Center Extension Project

PolyVoid - Polystyrene Void Former For Raising Slabs.png

Nelson Mandela Children's Hospital Project


Amazon Head Office Project In CT

PolyFloor - Polystyrene Insulation Boards For Floors

Order high density polystyrene surface bed insulation boards in JHB, CT, Durban, East London & Port Elizabeth. Now on special!
In stock
Product Details
Brand: PolyFloor
Board Size: 1200mm x 2500mm
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 - Polystyrene Insulation For Concrete Floor Insulation

On Special Today!

You can simply order directly online or request a quote.

PolyFloor Insulation Boards are the perfect choice for concrete surface bed insulation. They are made from high-quality polystyrene and can provide insulation for underfloor heating systems as well as other applications.

These boards are fire retardant and easy to install, making them perfect for any insulation job. PolyFloor Insulation Boards are the cost-effective choice for any insulation project.

Ordering our high quality, high density or extra-high density, PolyFloor - Concrete Floor / Surface Bed Insulation Boards nationally online is 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 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:

  • Strydompark, Gauteng
  • Philippi, Cape Town
  • Clairwood, Kwazulu-Natal
  • Wilsonia, East London
  • Neave Industrial, Port Elizabeth

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 than getting out of bed on a cold winter's morning and stepping directly onto a 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 is 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 cost savings it provides 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)

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)

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 application.

  • In residential applications, a high-density board can be used.
  • In commercial or Industrial applications 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

" 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 then 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 80 to 100mm concrete slab 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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Landmark Bulk Polystyrene Projects Supplied

Since, 2016, we have worked closely with many of South Africa's largest construction companies and supplied polystyrene to several of the landmark polystyrene building projects nationally and to neighboring countries. Some of these include:

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.

About Polystyrene Product Company (Pty) Ltd

About Us

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

Polystyrene 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, Excl. Weekends

For Cutting, Collection & Delivery

3 – 7 Working Days, Excl. Weekends


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

Office Hours: Monday - Friday 8am - 5pm

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

All National Client Orders Are Managed Centrally & Not Through Our Regional Factories.


We Cut & Deliver Polystyrene Nationally Directly From Our Cutting Facilities In:


Cape Town


East London

Port Elizabeth


We Cut, Deliver & Offer Collection At These Facilities.


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

Bulk Buyer & Regular Buyer Polystyrene 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:

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