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Welcome to Casta

Formerly 4S, Casta is bringing concrete products to New Zealand’s construction and trade industry through our passionate team, improved range of time-savings products, and enhanced service with our new office and distribution centre in Tauranga adding to our current Westport head office/distribution centre and Levin office.

Over the coming months we will be adding more great products to our range and including more in-depth information on all of our products so be sure to keep an eye out.

Why choose Casta?

Why choose Casta?

Same Day Dispatch

We endeavour to get any orders received before 1pm dispatched that same day.

Nationwide Supply

Our full range of products are available for delivery nationwide from our North and South Island distribution centres.

Technical Site Support

Not only do our passionate representatives love to get out and visit your team to discuss your concrete product needs, we also make it our mission to provide onsite technical support to ensure you are able to complete your projects faster and to the highest quality.

View our products

Our products

Get the best out of your concrete pour with our innovate and time saving solutions. Our products include a range on NZ’s premier concrete products to ensure you get your job done on time with unrivalled finish quality.


Tuff-Form™ boxing is lightweight and incredibly fast to set up before a job and clean up after.

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K-Form is made from uPVC. In simple terms it’s a lightweight cast in-place permanent screed rail that’s strong enough to handle all types of conventional mechanical screeds.

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Steel Boxing Pins

Strong steel pins allow for easy driving in hard sub grades.

Steel Boxing Pins


Dowels provide a mechanical connection between slabs without restricting horizontal joint movement. Casta have a range of dowels, both plate and round; available to suit your next project.

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General Accessories

Casta have a range of concrete chemicals & accessories available to suit your next project.

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