Construction input prices fell 1.1% in June. The number is already wrong.
Associated Builders and Contractors’ analysis of Producer Price Index data, released Wednesday, shows the monthly decline came almost entirely from energy. Crude petroleum dropped 12.1% and unprocessed energy materials fell 8.1%. Take those out and the picture inverts.
The five-week lag that makes June’s print stale
BLS collected June’s index prices nearly five weeks before publication. In the interval, the conflict in Iran resumed and oil rebounded roughly 15%.
“Ongoing materials price escalation is likely over the coming months,” said ABC chief economist Anirban Basu. “The conflict in Iran has resumed, triggering a roughly 15% rebound in oil prices, and tariff-affected commodities like iron, steel and copper continue to experience steep price increases.”
Anyone pricing work off the June headline is estimating against conditions that no longer exist. That’s always somewhat true of PPI, but it matters more when the swing factor is a commodity that moved 15% inside the reporting gap.
Metals kept climbing right through the decline
The monthly detail is where the real signal sits. Steel mill products rose 3.6%. Iron and steel rose 2.5%. Copper wire rose 1.7%. Natural gas jumped 16.6%, moving opposite crude. Only two of three energy subcategories fell.
Year over year, overall construction input prices are up 7.6% and nonresidential inputs are up 7.4%. Those are the numbers that show up in escalation disputes.
“Although fuel prices dropped in June, they remained far higher than a year earlier,” said Ken Simonson, chief economist at the Associated General Contractors of America. “In addition, steep tariffs on aluminum, steel and products containing copper have continued to push up construction costs.”
Structural, not cyclical
The distinction contractors should be drawing is between the two forces in this print. Energy is cyclical and it moves both directions, sometimes violently, inside a single reporting period. Tariff-driven metals escalation is a policy input, and policy inputs don’t mean-revert on their own.
That difference should be showing up in how escalation clauses get written. A fuel adjustment indexed to a published benchmark handles the first case. Fixed-price exposure on structural steel, copper wire and aluminum systems in a tariff environment is a different animal, and it’s the one compressing margins. ABC’s own survey has contractor profit margin confidence at a seven-month low.
Basu expects renewed cost pressure to weigh on profitability through the second half of 2026. Projects with long steel packages, like the U.S. Steel Fairfield quench and tempering line, are where that math gets tested first.
Sources: Construction Dive, BLS Producer Price Index.