Long-lead items: the purchase order is part of the schedule

Elevators, switchgear, steel, windows: the items that take months decide your dates as much as the crew does. The procurement log is the schedule's other half.

Ask what decides a project's finish date and most people point at the crew. But the crew cannot install what has not arrived. Turner & Townsend's Global Construction Market Intelligence 2025 reports construction cost inflation edging up around 5 percent in several US markets, specialist skills shortages reported in over two-thirds of North American regions, and survey concerns over supply chain disruption. In that environment, buying late is not a cash strategy: it is a schedule risk with interest.

What a long-lead item is

Anything whose manufacturing and delivery time is measured in weeks or months: elevators, electrical panels and switchgear, HVAC equipment, structural steel, façade and window systems, generators, special finishes. Each one has a clock that starts when you order, not when you need it.

The procurement log

One page per project, updated weekly, five columns:

• Item and spec: exactly what will be bought, to which specification.
• Lead time: quoted by the supplier, in writing, today. Not the number from the last project.
• Need-on-site date: from the schedule, with float.
• Order-by date: need date minus lead time minus approval time. This is the real deadline, and it is usually earlier than anyone expects.
• Status: quoted, approved, ordered, in production, shipped, on site. One owner per row.

Where it usually breaks

The estimate buries the long-lead items inside line items, so nobody sees them until the schedule does. Or the submittal sits unapproved for three weeks and eats the float before the order is even placed. Or the price moved between quote and order: with cost inflation running, a quote has a shelf life, and the procurement log is what makes that shelf life visible.

What it buys you

Buying on time is cheaper than accelerating later, and it makes your promised dates credible. That credibility is commercial capital: the developer who trusts your dates comes back with the next project. And the quote you send for that project should carry the real lead times and prices from your own history, the same discipline as tracking budget against actual. What you quoted, to whom, and what happened next: that history, per client and per project, is the daily work a ERP for construction companies keeps straight.