The construction pipeline is showing renewed signs of strain, raising concerns for glass and glazing companies that depend on steady project flow. According to the ConstructConnect Project Stress Index (PSI), stress levels rose 4.2% in March, driven largely by a sharp 22.8% increase in project abandonments across nonresidential and multifamily sectors.

Much of this pressure is concentrated in private-sector developments, where rising costs and uncertainty are forcing owners to reconsider or halt projects. A key driver is the ongoing geopolitical tension surrounding the Iran conflict, which continues to disrupt critical global shipping routes and push energy prices higher. These disruptions are having a cascading effect on construction planning and feasibility.

Although the PSI shows a 3.5% year-over-year improvement, short-term volatility remains a serious concern. For glass and glazing firms, delayed or abandoned projects directly impact revenue forecasts, backlog visibility and workforce planning. The inability to confidently predict timelines also complicates material procurement and pricing strategies.

Global supply chains are adding further pressure. The Middle East plays a crucial role in aluminum supply, an essential material in modern construction. With shipments frequently passing through the Strait of Hormuz, ongoing instability in the region is increasing the risk of shortages and price fluctuations.

As a result, companies across the glass and glazing sector may face tighter margins and heightened competition for fewer active projects. Until geopolitical tensions ease and supply chains stabilize, uncertainty is likely to remain a defining factor for the industry.