Website & Custom Tools — Case Study

A new website with the fuel maths built in.

ACM Material Solutions & Transport · Aggregates, cleanfill & cartage · Napier & Hastings

A price that changes every month.

ACM supplies aggregates, recycled products and cleanfill from yards in Napier and Hastings, and carts them with its own trucks and trailers. Every invoice carries a fuel adjustment factor (FAF): a percentage that moves each month with the national diesel price.

Their old website lived on a monthly website-builder subscription and kept prices in a downloadable PDF. Questions like this month's FAF, how much material a job needs, or how to open an account all meant a phone call or an email.

Built the tools into the website.

We rebuilt the site from scratch: fast, mobile-first, and moved off the old builder with every old page address redirected. Then we built in the tools ACM's customers kept asking about:

A live fuel adjustment factor. A dedicated page shows this month's FAF, the rule behind it (0.69% for every full 5c/L the MBIE average diesel price is above $2.00), a full table, past months, and a checker where anyone can type a diesel price and see the FAF it would give. The current FAF also shows in the footer of every page and on the product pages.

One number a month. Updating the FAF takes a single figure, entered once or with one button, and the whole site updates itself. The monthly price list carries the same figure.

A volume calculator. Customers enter the size of the job and get the tonnes they need for each product, so they can order the right amount.

Accounts online. A quick account form and a downloadable credit application, with a QR code sign at the yard that takes drivers and walk-ins straight to it.

acmyes.co.nz/fuel-adjustment
ACM's fuel adjustment factor page: the October 2026 FAF of 10.35%, how the FAF works, the FAF table and a diesel price checker
See the FAF tool live → acmyes.co.nz

Live since 30 September 2026.

1
Number to update each month. The whole site and price list follow.
Every page
Shows this month's fuel adjustment factor
24/7
Customers check the FAF, size an order or apply for an account without calling

Those answers are now on the website, any time of day. The FAF is published the same way every month, so customers see exactly how it's worked out and the figure on their invoice never comes as a surprise.

This is the kind of thing a template website can't do: tools built around how a business actually prices its work. See more on custom software.

acmyes.co.nz
The ACM Material Solutions & Transport homepage: Material Solutions & Transport headline beside a Kenworth truck
See it live → acmyes.co.nz

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