This year, our list of top metal builders shows a steady industry, with the largest contractors and erectors reporting considerable increase in the average tonnage and square footage of the metal buildings they constructed between 2023 and 2024.

Again this year, we separated the list of 20 top erectors from 100 top contractors. We do this so we do not count work on the same building twice—once for the contractor furnishing the metal building system and again for the erector putting up the steel.

This does cause complications, however, because some companies furnish and erect but are contracted only to erect a building, making them both contractors and erectors. We identify those companies as contractors rather than separate those numbers in the same entity.

The two lists make comparing trends such as building size or market share changes over the years difficult. However, to alleviate this, we identified the 100 largest companies regardless of whether they are contractors or erectors and showed how their averages compare to previous years.