Construction input inflation ticks up

# Construction input inflation ticks up The latest read on the U.S. economy delivered an awkward mix for builders: business in the giant services sector slowed in March, but the price of doing that business jumped sharply. For construction firms, that showed up in a familiar way, with survey respondents specifically pointing to higher prices for lumber, copper and steel. (ismworld.org) The headline number came from the Institute for Supply Management’s March 2026 Services Purchasing Managers Index report, released April 6. The index slipped to 54.0 from 56.1 in February, which still signals expansion because readings above 50 mean activity is growing, but it also marks a clear loss of momentum from the prior month. (ismworld.org) Under the surface, the report was more unsettling than the top-line slowdown suggested. The business activity index fell to 53.9 from 59.9, while the employment index dropped to 45.2 from 51.8, its first contraction in four months. (ismworld.org) At the same time, the prices index surged to 70.7 from 63.0. The Institute for Supply Management said that was the highest reading since October 2022, and Reuters described it as a near three-and-a-half-year high for input costs across the services economy. (ismworld.org) That matters to construction because many contractors live or die by the gap between an estimate and the actual cost of materials when the job starts. If steel, copper or lumber moves higher after a quote is sent but before a purchase order is locked in, the contractor often absorbs the difference unless the contract has an escalation clause or a very short validity window. The March survey also showed supplier deliveries rising to 56.2 from 53.9. In this index, a higher reading means slower deliveries, so builders are dealing with a double squeeze: materials are getting more expensive, and they may also be taking longer to arrive. (ismworld.org) That combination makes static pricing more dangerous. A bid built on last month’s commodity sheet can go stale fast when metal products, wire, framing packages or mechanical components are repriced before procurement is complete. The backdrop is broader than construction alone. Reuters reported that the U.S.-Israel conflict with Iran, then in its second month, had pushed global oil prices up by more than 50%, with the national average retail gasoline price moving above $4 a gallon for the first time in more than three years. Higher energy costs feed into freight, fabrication, distribution and jobsite operations, which is one reason inflation pressure can spread from fuel into building inputs. (money.usnews.com) There was one surprisingly strong detail in the report: new orders rose to 60.6 from 58.6, the highest level since February 2023. That suggests demand has not fallen apart, which means many firms may still be busy even as margins get harder to protect. (ismworld.org) For project owners, this is the kind of environment where a budget approved in one meeting can be outdated by the next. For contractors, it is the kind of market that rewards faster buyout, tighter quote windows, clearer allowances and more aggressive use of escalation language. Industry cost data had already been flashing warning signs before this services report. Associated General Contractors of America said in January that the producer price index for materials and services used in nonresidential construction rose 3.6% over 12 months through November 2025, the largest year-over-year increase since January 2023, while member firms reported materials costs as a major concern for 2026. (agc.org) Separate construction-industry analysis tied earlier price gains to the same set of materials now being named again by service-sector respondents. Associated Builders and Contractors said a prior March increase in construction input prices was driven by rapidly rising steel, copper and lumber, a pattern that closely matches what contractors are flagging in the newest services survey. (abc.org) None of this means a repeat of the extreme price shocks seen earlier in the decade is guaranteed. It does mean the old habit of treating material prices as fixed for weeks at a time looks less safe than it did a month ago. For anyone pricing work right now, the practical takeaway is simple. The risk is no longer just whether enough projects are available; it is whether the numbers on the page will still be true by the time the materials are actually bought.