Long-lead items are materials or equipment that take weeks or months to manufacture and deliver, such as structural steel, HVAC units, and elevators. Order them during preconstruction to keep your project on schedule.
Every commercial construction project depends on timing. A single late shipment can stall framing crews, push back inspections, and throw off your entire schedule. That’s why experienced commercial construction companies in Utah plan for long-lead items from day one.
This guide explains what material lead times are, why they matter, and how understanding them can help you avoid costly delays.
What Are Long-Lead Items in Commercial Construction?
Long-lead items are materials or equipment with a lead time much longer than standard building supplies. While lumber or drywall might arrive within days, items like custom windows or electrical switchgear can take months to manufacture and ship.
The difference comes down to complexity and demand. Readily available supplies are usually mass-produced and kept in stock. Long-lead items are often custom-built, sourced from limited manufacturers, or subject to high demand across the industry, which stretches out the material lead time considerably.
What Are Common Long-Lead Items in Commercial Construction?
Long-lead items show up in nearly every phase of a commercial build. Knowing which materials typically fall into this category helps your team plan ahead and avoid last-minute surprises.
- Electrical equipment (switchgear, transformers, generators)
- HVAC and mechanical equipment (chillers, rooftop units, boilers)
- Structural steel and building enclosure materials (curtain wall systems, precast panels)
- Doors, frames, and hardware (especially fire-rated or custom specifications)
- Elevators and building-specific equipment
Why Do Long-Lead Items Cause Construction Delays?
When a long-lead item isn’t ordered early enough, the entire project timeline can shift. Crews may finish other phases of work only to sit around waiting for a shipment.
This ripple effect is one of the most common causes of delays in commercial construction companies in Utah. A project that looks perfectly on schedule can quickly fall behind if planning didn’t account for the material lead time of one critical component.
When Should You Order Long-Lead Construction Materials?
There’s no single ordering timeline that fits every project. Look at your specific materials, the manufacturer’s current backlog, and the complexity of your design.
Identify Potential Long-Lead Items During Preconstruction
The earlier your team flags potential long-lead items, the more buying power and flexibility you’ll have. Reviewing drawings and specifications during preconstruction allows your contractor to catch these items before they become a problem.
Work Backward From When the Materials Are Needed
Once you know your installation date, work backward using the supplier’s quoted material lead time. This reverse scheduling approach ensures materials arrive with enough buffer for unexpected manufacturing delays.
Understand How Submittals and Owner Decisions Affect the Clock
Submittals and owner approvals can add weeks to an order. A delayed decision on finish selections, for example, can push back the entire procurement timeline for related equipment.
Consider Early Purchasing for Critical Equipment
For items with especially long material lead times, such as elevators or custom switchgear, early purchasing agreements can lock in pricing and secure a manufacturing slot before the design is even finalized.
Who Is Responsible for Ordering Long-Lead Items?
Responsibility typically falls to the general contractor, working closely with subcontractors and suppliers. Experienced commercial construction companies in Utah often take the lead on procurement scheduling to keep every trade aligned.
Long-Lead Planning Considerations in Utah
Commercial construction companies in Utah should consider the following. Demand usually surges during the busy summer construction season, which can extend material lead times for popular equipment like HVAC units. Projects planned for a spring start should account for this seasonal strain when building out a procurement schedule.
How Can You Prevent Long-Lead Items From Delaying Your Project?
Avoiding delays starts with proactive planning and consistent communication throughout the project.
- Create a procurement schedule early in preconstruction
- Finalize major material and equipment selections as soon as possible
- Maintain communication with suppliers to track order status
- Plan for early deliveries and on-site storage when needed
Partner With a Contractor Who Plans Ahead
Managing long-lead items takes experience, foresight, and strong supplier relationships. At Arnell-West, nearly 40 years of commercial construction experience means we know how to identify long-lead items early and build a procurement schedule that protects your timeline. If you want a team that treats scheduling seriously, get in touch!
Frequently Asked Questions
How far in advance should long-lead items be ordered?
It depends on the item, but many long-lead materials should be ordered three to twelve months before installation, based on the supplier’s quoted material lead time.
Can long-lead items be substituted to save time?
Sometimes. Alternative products or manufacturers may offer shorter material lead times, but substitutions should be reviewed carefully to ensure they meet project specifications.
What happens if a long-lead item is ordered too late?
Late orders can delay installation, push back related trades, and extend the overall project schedule, often at added cost.
Do long-lead items affect project budgets?
Yes. Price volatility, expedited shipping fees, and potential schedule extensions can all increase costs if long-lead items aren’t planned for early.
Who tracks long-lead item deliveries during a project?
The general contractor typically manages this tracking, coordinating with suppliers and subcontractors to confirm delivery dates align with the schedule.
Are long-lead items different for every project type?
Yes. Schools, restaurants, and office buildings each have unique equipment needs, so the specific long-lead items and their material lead times will vary by project.