Ordering ready-mix is more than naming a cubic-yard total. The supplier needs enough information to provide the specified concrete, schedule production, reach the placement, and discharge at a rate the crew can handle.
Count batches and handling
Divide total volume by mixer capacity and estimate the time for every batch. Include moving bags, water measurement, and moving wet concrete to the forms.
Ask about minimums and short loads
There is no universal minimum concrete order. A producer may deliver less than a full truck but apply a minimum-load, short-load, delivery, waiting, environmental, or returned-concrete charge. Ask for the smallest delivered quantity and total delivered price before comparing it with bagged concrete.
State quantity with contingency
Ready-mix is sold by volume in cubic yards or cubic metres. NRMCA recommends ordering 4% to 10% more than plan dimensions to cover contingencies. The calculator keeps this allowance visible instead of hiding it in the measurements.
Order the required performance
Provide the project specification when one exists. Confirm the application, specified strength, exposure, air entrainment where required, aggregate size, placement method, and any other designer requirements with the producer. Do not invent a structural mix from a generic article.
Understand slump
Slump measures fresh-concrete consistency, not strength by itself. The appropriate target depends on the mixture, forms, reinforcement, placement, pumping, and specification. Ask the producer or project professional for the suitable mix rather than adding uncontrolled water at the site.
Ready-mix truck or volumetric mixer
A drum truck carries concrete batched for delivery. A volumetric mixer meters ingredients and mixes on site, which can suit small, staged, or uncertain quantities. Availability, certification, mixture control, minimums, and pricing vary locally, so compare suppliers against the same project requirements.
Prepare access, crew, and schedule
Confirm truck dimensions and weight, street and driveway access, overhead clearance, discharge reach, pump or buggy needs, washout, crew size, delivery rate, weather plan, and placement duration. The crew and forms should be ready before the truck arrives.
Practical takeaway
Give the producer the project requirements, volume, placement method, site logistics, and schedule, then request a total delivered quote with every minimum and extra charge listed.