Polystyrene Prices & Online Store | South Africa | Polystyrene.co.za

Get Quick Polystyrene Prices & Order Online

We Make National, Direct, Polystyrene Ordering Simpler, Faster & More Cost-Effective!

Why Polystyrene Product Company (Pty) Ltd?

Fast Ordering Platform

Established Nationally in 2016

Respected Bulk Suppliers

Well Known

Competitively Priced


No Minimum Orders

Highest Google Reviewed Supplier

Over 35000 Facebook Followers

Suppliers To Many Bulk Buyers

Polystyrene Specialists

Technical Experts

High Quality Products

Direct From Factory

General Order Lead Times

Order Lead Time For Cutting & Delivery Is Normally 3 to 7 working days, Excluding Weekends & Public Holidays.

If You Collect Then The Lead Time May Be Less.

Lead Time Starts Once We Have Received Payment In Our Bank Account


Please Call Us If You Need Product Faster So We Can Assist

Online / Offline Payment Options

  • Visa Credit & Debit Cards

  • Mastercard Credit & Debit Cards

  • RCS Store Cards

  • Game Store Cards

  • Cape Union Mart Store Cards

  • Makro Store Cards

  • Builders Warehouse Store Cards

  • CTM Store Cards & More

  • Instant EFT (Online)

  • Request An Invoice & Pay Via EFT

Who Buys Our Polystyrene Products?

Mostly Builders, Large & Medium Sized Construction Companies, Concrete Slab Installers, Ceiling Installers, Cornice Cutters, Insulation Installers & Cold Room Manufacturing Companies.

We Sell A Lot Of Polystyrene To The Creative Design Industry.


We Also Sell Polystyrene Directly To The General Public In South Africa


All Online Prices Exclude VAT.

Enjoy Our Daily National Online Specials!

PolyWall - Polystyrene Insulation Boards For Cavity Walls

PolyWall Cavity Wall Insulation Boards are the most cost effective polystyrene insulation boards for cavity wall insulation.
In stock
Product Details

Order PolyWall - Medium-Density Polystyrene Cavity Wall Insulation Boards Online Or Request An Online Quote Now

This is our online retail platform and if you are a bulk buyer then it may be better to request a bulk quote since our polystyrene prices vary based on volume.

We are currently running a massive national online special on this product!

Insulation of the perimeter walls of buildings is extremely important and PolyWall, Medium Density, Fire-Retardant, Polystyrene, Cavity Wall Insulation Boards are certainly a very cost-effective product to use in brick wall cavity insulation applications.

In terms of South African building regulations, to get the required thermal insulation R-Value of 1, you need a minimum thickness of 40. The thicker you go the more insulation your get.

Each board is 3m2 so you will need to divide the total wall insulation area by 3 to get the quantity of boards you require.

Best of all is that you can simply order these boards nationally online for collection or delivery from any of our national distribution centres located in:

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

In fact, there is no faster or easier way to order polystyrene wall insulation nationally online in South Africa.

You will probably want to order these boards with our PolyFloor Concrete Floor Insulation Boards because generally these get used in quick succession.

Order lead time is generally 3 to 7 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.

Our national online ordering platform is designed for busy building contractors, property developers, architects, quantity surveyors and home owners. There really is no easier or faster way to order this product nationally online in South Africa.

Save Time & Money & Simply Order Your PolyWall Insulation Nationally Online Today!

Order Collections & Deliveries

Please note that our national distribution centres are not walk-in shops. They are industrial distribution centres from which you will be able to collect your order or from which we will deliver your order.

Our online ordering platform offers local deliveries from these distribution centres so if your project is far from these locations then you will have to collect your order from the distribution centre closest to you.

For big orders we will deliver nationally and across border!

Board Prices

The prices displayed are board prices excluding VAT.

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.

What is Perimeter Wall Cavity Wall Insulation?

  • Cavity Wall Insulation is the insulation layer that is placed between the inner and outer brick layers of the outer perimeter walls of a building.
  • This insulation layer significantly reduces the transfer of heat and cold through the external perimeter walls of buildings.
  • In summer the sun-facing exterior walls get hot and this heat is kept out of the living space by the cavity wall insulation.
  • In winter this cavity wall insulation keeps the cold out.
  • Cavity wall insulation significantly reduces the energy consumption of such HVAC systems use to keep buildings at room temperature.

Architect & BOQ Specification

".......mm x 1200mm x 2500mm Medium Density, Fire Retardant, PolyWall Cavity Wall Insulation Boards By Polystyrene Product Company. Specifically Designed For Cavity Wall Insulation Applications.

Per m2 Prices

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

PolyWall Thicknesses & Thermal Insulation R-Values:

Board Thickness Thermal Insulation (R-Value)

40mm 1.143 (Recommended)
50mm 1.429 (Recommended)
75mm 2.145
100mm 2.857
120mm 3.429
150mm 4.286
200mm 5.714
300mm 8.571

Order Process:

  • First decide on the thickness you want. (The thicker the boards, the more insulation)
  • Add the boards and quantities you want to you order.
  • Select the collection & delivery options
  • Pay for your order online or submit your order for review.
  • Fast & Easy!

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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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.


Polystyrene Product Company

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


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