Calculate cubes
Estimate the volume for a rectangular pour before requesting a quote.
Rock-Tuff supplies and delivers ready-mix concrete according to specified strength requirements for construction projects within an 80 km radius from eMalahleni (Witbank).
From estimating cubes to selecting a specification and sharing site details, Rock-Tuff makes it easy to send the information needed for a clear, efficient quotation.
Estimate the volume for a rectangular pour before requesting a quote.
Choose a standard mix, request a special mix design or ask for assistance.
Delivery address, date, access and on-site contact are captured in one flow.

Quality starts at the batching plant. Rock-Tuff Ready Mix applies batching, mix-design and testing controls to help ensure concrete is supplied in accordance with the specified requirements for each order.
Concrete is batched according to the specified mix requirements with controlled material quantities and procedures.
Standard and project-specific mix requirements are managed according to the specified strength and application.
Slump testing may be carried out where applicable to assess fresh-concrete consistency and workability.
Cube samples and strength testing may be arranged or performed where applicable and specified for the project.
Batching equipment is subject to calibration and operational checks to support controlled material measurement.
Control measures are applied through batching and supply according to the job and agreed specification.




The range includes slag mixes, pump mixes, stone mixes, 22 mm options and swimming-pool mixes. Pricing is quotation-based and depends on the project and delivery requirements.

See the operation behind every delivery — from batching and fleet preparation to pump pours, placement and finishing on site.
Explore real Rock-Tuff plant, fleet and site photography throughout the project gallery.
See Concrete in Action →Additional Rock-Tuff site media showing mixer delivery, pump equipment and active concrete placement. Images are web-optimised and lazy-loaded to protect page speed.


Enter the dimensions of a rectangular pour and estimate the volume in cubic metres. The result can carry straight into the quote builder.
Select the exact mix or request assistance.
Tell Rock-Tuff what is being poured and the estimated cubes.
Add site address, required date, access and site contact.
Requester and company details complete the structured enquiry.

Rock-Tuff supplies and delivers ready-mix concrete within an 80 km radius from eMalahleni (Witbank). Customers can request a quote first or use the dedicated delivery booking flow once an order is confirmed.