Flex Fuel Surcharge

Volatile global fuel markets continue to affect the cost of producing and delivering ready‑mix concrete across Canada. To help manage these fluctuations transparently and consistently, CBM applies a Flex Fuel Surcharge to delivered concrete loads when diesel fuel prices rise above a defined threshold.

How the Flex Fuel Surcharge Works

The surcharge is variable and calculated per cubic metre of concrete delivered.
It is based on the monthly average Toronto rack diesel fuel price published by Natural Resources Canada.
The surcharge is designed to partially offset CBM’s increased fuel and energy‑related costs connected to the production, delivery, and sale of concrete, rather than acting as a simple pass‑through line item.

Official Flex Fuel Surcharge Notification – Effective October 1, 2026

Threshold and Calculation

When the average monthly diesel price is at or below $0.80/L, the existing $2.00/m³ fuel surcharge you already pay remains in place.
When the average monthly diesel price exceeds $0.80/L, a Flex Fuel Surcharge is added on top of the existing $2.00/m³ fuel surcharge.
The Flex Fuel Surcharge amount is $0.06/m³ for every cent ($0.01) over the $0.80/L threshold.

We Are Here to Help

At CBM, we are available to review how the Flex Fuel Surcharge is calculated, discuss the current rate, and answer project‑specific questions. CBM values long‑term relationships with our customers and remains committed to providing reliable, high‑quality service while managing rapid changes in input costs responsibly.

Official Flex Fuel Surcharge Notification – March 15, 2022
Flex Fuel Surcharge Letter