The usual suspects
Across GTA commercial and industrial work, the same categories keep landing on the critical path: electrical distribution equipment, packaged rooftop units and large air handlers, elevators and lifts, custom curtain wall and storefront, overhead doors and dock equipment, and utility service work driven by a third party's own queue.
Lead times move constantly, so we re-confirm them at buy-out rather than trusting a number from the last project. What does not change is the order of magnitude: these items are quoted in months while trade mobilization is quoted in weeks.
- Switchgear, panels and transformers
- Rooftop units, air handlers and large mechanical equipment
- Elevators, escalators and vertical lifts
- Custom glazing, curtain wall and specialty storefront
- Overhead doors, levellers and dock hardware
- Utility and authority-driven service connections
Release early, but release correctly
Ordering early only helps if the order is right. We pull the long-lead package forward in the design so the equipment can be specified and released while the balance of the drawings finishes. That means an early electrical load summary, an early mechanical equipment schedule and a coordinated roof structure review before the RTU weight is fixed.
Where an owner wants to protect the date before the contract is settled, an early-release purchase or a deposit against a production slot is often worth more than any amount of schedule compression later.
Track it as a live document
Our long-lead log carries the item, responsible trade, submittal date, approval date, release date, promised delivery, and the site date it must land by. It is reviewed at every owner meeting, and any item where the float drops below two weeks gets escalated in writing.
The point is not paperwork. It is that a two-week slip on a shop drawing approval in month two is invisible unless someone is watching, and it is the reason the substantial performance date moves in month nine.