National Sales Support
JHB Head Office
Now Taking Last Bulk Polystyrene Orders For 2025
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Polystyrene Sheets & Blocks
Direct Polystyrene Ordering Made Simple!
Our national online ordering platform makes it quick and easy for bulk buyers, builders and the general public to order polystyrene directly online from Johannesburg, Cape Town, Durban and Port Elizabeth.
We are trusted bulk suppliers of polystyrene and have supplied many of the largest polystyrene projects in South Africa, including:
- The New Amazon Head Office project in Cape Town
- The Nelson Mandela Children's Hospital project in JHB
- The Cape Town Convention Centre Project In CT to name just a few.
We cut and deliver hundreds of polystyrene sheets & blocks orders nationally each month and export.
Standard Sizes:
Our standard sizes are the most cost effective way to order polystyrene in South Africa.
10mm x 1200mm x 2500mm (3m2)
15mm x 1200mm x 2500mm (3m2)
20mm x 1200mm x 2500mm (3m2)
25mm x 1200mm x 2500mm (3m2)
30mm x 1200mm x 2500mm (3m2)
40mm x 1200mm x 2500mm (3m2)
50mm x 1200mm x 2500mm (3m2)
75mm x 1200mm x 2500mm (3m2)
100mm x 1200mm x 2500mm (3m2)
120mm x 1200mm x 2500mm (3m2)
150mm x 1200mm x 2500mm (3m2)
200mm x 1200mm x 2500mm (3m2)
300mm x 1200mm x 2500mm (3m2)
600mm x 1200mm x 2500mm (3m2)
If you need a special size cut, please email us the sizes you need: sales@polystyrene.co.za
Densities & Applications:
Polystyrene is manufactured in different densities:
Low Density (12SD to 14XG)
- Low cost packaging
- Creative projects
Medium Density (15DV)
More dense and good for cavity wall insulation
High Density (20DV)
Great fo applications that require compressive strength
- Below concrete floor slab insulation
- Above concrete roof insulation
Extra High Density (24DV - 30DV)
This is the highest density polystyrene. It is used for raising concrete slabs and specific engineering applications.
Need help with density specification?
Please email us if you need assistance with density specification: sales@polystyrene.co.za
Cutting & Distribution Centres:
Our polystyrene sheets and blocks are cut and distributed on order from our cutting facilities in:
Johannesburg (Walk in facility, cutting & distribution centre)
Cape Town (Cutting & distribution centre only)
Durban (Cutting & distribution centre only)
Port Elizabeth (Cutting & distribution centre only)
Order Lead times:
Generally we aim to cut and deliver within 3 to 5 working days. Saturday, Sunday & public holidays are not working days.
Deliveries & Costs
Our online platform offers delivery costs within a 50km radius of the cutting facility.
If you are outside this radius, it will give you an option to submit your order to get a delivery quote from us.
Thermal R-Values:
Polystyrene is an exceptional thermal insulator. Thermal insulation is measured as an R - Value (increasing with thickness). Architects use this for insulation specifications.
30mm - 0.857
35mm - 1.000
40mm - 1.143
50mm - 1.429
60mm - 1.714
70mm - 2.000
80mm - 2.286
90mm - 2.571
100mm - 2.857
110mm - 3.143
120mm - 3.429
150mm - 4.286
Trusted By Large Bulk Buyers & General Retail Clients
We have supplied bulk polystyrene to over 17 500 large clients since 2016, but some of our most memorable projects are the Amazon Head Office (CT), Nelson Mandela Children's Hospital (JHB) and Cape Town Convention Centre, to name just a few.



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