根据美国相关总承包商和受访的几位承包商高管的说法，一系列建筑材料供应链中持续的与大流行有关的破坏正在破坏项目需求。

“Both today’s producer price index report and our survey results show that escalating materials costs and lengthening delivery times are making life difficult for contractors and their customers, including … facilities needed to get the economy back on track,” said Ken Simonson, AGC chief economist.

He refers to an analysis of data from the federal Bureau of Labor Statistics released March 12 and an association survey that said 52% of 1,419 contractor respondents had experienced delays due to shortages of materials, parts or equipment. Simonson added that owners and budget officials should continue to anticipate projects will cost more and have longer—and perhaps uncertain—completion times.

施工高管确认了各种延迟的材料，包括木材，钢托梁，绝缘材料以及不锈钢和PVC管道。总部位于俄克拉荷马州俄克拉荷马州塔尔萨的总裁Curt Hellen说，某些商品（尤其是木材和钢铁）的价格很高，这是我们目前拥有的最大的负面影响之一。”18luck.cub

西蒙森说，凭借钢和木材产品价格峰值，AGC已要求拜登政府考虑在关键材料上删除关税，并采取其他监管步骤以缓解短缺。

Construction project estimators say one of the biggest factors causing shortages is the continuing inability to ship available materials via rail or truck. “Due to container and trucking shortages being felt across the country, anything with significant shipping and logistics components can cause lead time issues,” said Josh Lawrence, vice president of preconstruction and chief estimator at McCarthy Building Cos., St. Louis.

劳伦斯说，麦卡锡已经使用了几种策略来减轻去年的影响 - 包括定时采购，提早提早带来贸易伙伴，创建短暂的窗户来做出决定，同时竞标价格仍然有效，锁定生产插槽并与所有者合作以了解所有者，以了解风险。

“The latest round of material price increases and availability concerns have only heightened our need to employ creative solutions to minimize these impacts,” he said.

Lawrence said steel that was ordered for a project was available but had not yet been processed when its plant shut down for two weeks. McCarthy’s on-site team worked with the manufacturer to find an alternative processing opportunity that would not cost the owner-client more time or money. In some cases, price increases on lumber and steel made switching to concrete the best option.

他说，包括保证最高价格合同在内的开簿合同仍然是最大程度地降低贸易伙伴风险的好工具。麦卡锡（McCarthy）的前构建小组正在向客户提供有关市场动态和创建合同语言的教育，以便项目参与者不仅处于材料价格的上涨风险中，而且从缺点中受益。

劳伦斯说：“如果提出关税的放松，我们预计定价和可用性最终会开始恢复正常水平，这肯定会对我们的项目和整个市场产生积极的影响。”18luck官网“但是，随着目前存在的运输容器和货运积压，引入大量海外材料只会增加当前的挑战。”