Ready-mix coordination · The rules that work

Your relationship with the ready-mix supplier is the single most operationally important vendor relationship you have. A good dispatcher will hold your slot when weather hits. A bad relationship costs you in hot loads, short fees, and slot drift. The teams that get this right share a few rules that boil down to one principle: give dispatch the data they need, on the timeline they need it.

The four rules

Rule 1 — The 48-hour rule Confirm yards and time with dispatch 48 hours before the pour. Not the morning of, not the day before. Dispatchers build their truck-and-driver assignments 24-36 hours out. If you call them at 5 PM the night before, you're asking them to rework an already-built schedule. They'll do it once, twice, three times. After that they'll start holding your slots less aggressively.

Rule 2 — The 7 PM cancellation cutoff If weather is going to cancel a pour, decide and notify by 7 PM the day before. Dispatchers can re-allocate your trucks to other customers if they know that evening. After 7 PM, the trucks are loaded and routed, and your cancellation costs them a billable load they can't replace.

Rule 3 — Send the data dispatch actually needs Every ready-mix order should include: pour ID, site address, contact name + cell, gate code or access notes, start time, yards, mix design (PSI, slump, admix), pump on-site (yes/no), and any notes about access constraints. Half of dispatch's frustration is chasing down missing data. The half that gets it cleanly the first time gets priority on rebookings.

Rule 4 — Treat dispatch like a partner, not a vendor Dispatchers remember which contractors yell when something goes wrong and which ones say "what can I do to help." When a plant breakdown affects your pour, the partner attitude moves you up the rebook list. The yeller stays at the bottom.

The mistakes that cost you

Verbal-only confirmations

You called dispatch and got a verbal confirmation. Nothing in writing. The dispatcher who took the call goes home, the night shift takes over, and your order isn't in the system. Tomorrow your trucks don't show. Always confirm in writing — email, text, or a written ticket reference.

Last-minute mix changes

You're on site, the slab thickness changed during install, and you call dispatch saying "I need 4000 PSI instead of 3500." The plant has to switch the mix design mid-shift. They will do it. They will also charge you a hot load fee. They will also remember.

Multiple POCs calling the same dispatcher

Your PM calls about Pour 14. Your super calls about the same pour an hour later. They give slightly different yards numbers. Dispatch is now confused about which one's right. Pick one person who owns the dispatch relationship per project.

Short-loading without warning

You ordered 90 yards. The pour came in at 84. You sent 6 yards back. That's a short-load fee. If you'd called dispatch at 50% pour and said "looks like we'll come in light by 5-6," they could have shorted the last load instead of sending a full one.

What sub-software changes about this

The 48-hour rule and 7 PM cutoff don't require software. The data-quality rules and writing-confirmations rules become much easier with software, because:

Every pour has all the dispatch fields filled in by structure — pour ID, address, contact, time, yards, mix, pump y/n, notes
One-click email to dispatch with all of the above, formatted consistently, every time
Cancellation notifications fire to dispatch automatically — add the ready-mix supplier to the pour's project contacts and the cancel flow emails them along with everyone else (SMS texting coming soon)
Audit log of what you sent and when — so when dispatch claims they didn't get the order, you have proof

See the Place & Finish getting-started guide for adding your supplier as a contact and sending your first structured order.

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Ready-mix coordination: the rules that work