• Summit Materials average gross margin for 2023 was 28.41%, a 5.03% increase from 2022.
• Summit Materials average gross margin for 2022 was 27.05%, a 1.99% increase from 2021.
• Summit Materials average gross margin for 2021 was 27.6%, a 11.97% decline from 2020.

Gross margin can be defined as a company's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as a percentage.