How Do You Track Long-Lead Items on a Job?

A long-lead item is one whose procurement takes long enough that ordering it on the normal rhythm would delay the work. One federal specification puts a number on it: the U.S. Army Corps of Engineers' project schedule section, UFGS 01 32 01.00 10 (August 2026), has the contractor schedule "the critical submittals and their approvals, procurement, fabrication, and delivery of long lead materials, equipment, fabricated assemblies, and supplies", and defines long lead procurement activities as "those with an anticipated procurement sequence of over 90 calendar days." Your spec may use another number or none; the method is the same.

On a commercial building the list usually starts with electrical gear (switchgear, switchboards, panelboards, transformers, generators), HVAC equipment (air handlers, rooftop units, chillers), elevators, curtain wall and storefront, structural steel, joists and deck, and anything custom or imported. The trade guides for electrical and HVAC subs say why their equipment drives the schedule. Get each trade's own list at buyout, along with its quoted lead times.

The one question that changes the answer: does the supplier's lead time start at the purchase order or at release for fabrication after the submittal is approved? Some suppliers of engineered items, such as electrical gear and curtain wall, quote from release. If it runs from release, the order-by date is the approval date, and the review cycles sit in front of the lead time rather than inside it. Ask, and write the answer on the log.

The submittal review time comes from your specifications, usually Division 01. The Corps' submittal section, UFGS 01 33 00 (August 2026), is a useful model: it tells the contractor to coordinate submittals "with performance of work so that work will not be delayed by submittal processing", to allow additional time for "long lead time submittals", and adds: "The review period for each resubmittal is the same as for the initial submittal." So plan for a resubmittal on anything complicated. For building the submittal side, see how to set up a submittal log.

Check the switchgear row by counting: 182 days before June 1, 2027 is December 1, 2026; 28 days before that is November 3; 21 days before that is October 13. The curtain wall, needed three months earlier, has to be released only six days after the gear, because its lead time is shorter. That is why a list sorted by need date misleads: sort by order-by date, and the item at the top is the one to chase.

The gear ties to the critical path if energizing the building waits on it. A slip on the order-by date then moves the finish, so it belongs in the three-week look-ahead and the owner meeting, not only the log.

1. Sort by order-by date. Anything not ordered and past its date is late now: call the sub and supplier the same day.
2. Check every item on order against its need date. If the expected delivery is after the need date, expedite, re-sequence the work, or tell the owner.
3. Check the submittals the next items wait on. An item can't be released while its submittal is still out for review.
4. Update expected dates from the suppliers' acknowledgments and shipping notices, not from memory.
5. Mark owner-furnished items separately: the owner places those orders, and someone has to chase the owner.

Conflo's Procurement log keeps each item by CSI division with its drawing, supplier, responsible company, lead time in days, need-on-site date and expected date, and a status of not ordered, ordered, shipped or delivered. It works out the order-by date as the need-on-site date minus the lead time, so enter the lead time that runs to the point you control. An item not ordered past its order-by date is flagged to order now, and one expected after its need date shows how many days late it will arrive.

An item can link to its submittal and shows whether it is approved. The responsible sub records dates and status on its own items, the GC can lock what an item is, owner-furnished items are marked, and the GC can share an item with the owner.

Work every long-lead item back from its need date: lead time to the order-by date, review and preparation to the day the submittal work must start. Sort by order-by date and review it weekly.

Most long-lead surprises are a lead time that ran from release, not order, or a submittal nobody started. Both show up on the log weeks before they show up on site.

See how Procurement works in Conflo

1. UFGS 01 32 01.00 10, Project Schedule (August 2026) — Whole Building Design Guide, U.S. Army Corps of Engineers. Read October 22, 2026.
2. UFGS 01 33 00, Submittal Procedures (August 2026) — Whole Building Design Guide, U.S. Army Corps of Engineers. Read October 22, 2026.