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Associated Builders and Contractors reported that its Construction Backlog Indicator fell to 7.6 months in September, according to an ABC member survey conducted Sept. 20 through Oct. 4. The reading is down 0.1 months from August 2021, but up 0.1 months from September 2020. 

ABC Construction Backlog Indicator September 2021

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ABC’s Construction Confidence Index readings for sales, profit margins and staffing levels each declined in September, but remain above the threshold of 50, indicating expectations of growth over the next six months.

ABC Construction Confidence Index September 2021

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“Nonresidential construction backlog declined for a second consecutive month as skills and input shortages hammer the industry,” said ABC Chief Economist Anirban Basu. “A growing number of contractors are indicating shortages of materials such as copper and PVC pipes.

“Input prices also continue to increase as global supply chain disruptions persist,” said Basu. “Rising shipping and trucking costs are further exacerbating the situation by placing additional upward pressure on input prices. Working in conjunction with skills shortages and attendant higher wages, rising input prices are resulting in lofty bids, inducing certain project owners to delay work and even cancel projects altogether in some instances.

“The good news is that demand for construction services remains elevated,” said Basu. “Many projects, whether those in health care, public education or data management, must move forward, and the data indicate that this is disproportionately benefiting larger contractors. For the most part, recent declines in backlog have been registered among smaller construction firms. Low interest rates and abundant liquidity have created the capacity for many investors to deploy substantial capital, and that helps support investment in real estate and construction projects.

“Despite all the challenges facing the nonresidential construction industry, contractors collectively expect sales, staffing and profit margins to expand over the next six months, though the level of confidence has been diminished in recent months,” said Basu.

Note: The reference months for the Construction Backlog Indicator and Construction Confidence Index data series were revised on May 12, 2020, to better reflect the survey period. CBI quantifies the previous month’s work under contract based on the latest financials available, while CCI measures contractors’ outlook for the next six months.

Click here for historical CCI and CBI data and here for methodology. Visit abc.org/economics for the CBI and CCI reports, plus analysis of spending, employment, GDP and the Producer Price Index.


Associated Builders and Contractors is a national construction industry trade association established in 1950 that represents more than 21,000 members. Founded on the merit shop philosophy, ABC and its 69 chapters help members develop people, win work and deliver that work safely, ethically and profitably for the betterment of the communities in which ABC and its members work. Visit us at abc.org.