High-Bay Crane-Ready Buildings in the Denver Metro

Crane runway tolerances are measured in sixteenths of an inch, and the building has to hold them for the life of the crane. We build high-bay, crane-ready industrial buildings in the Denver metro for manufacturers, fabricators, equipment builders and heavy repair operations: tall clear heights, columns and foundations sized for runway loads, and a roof and floor that can carry what the plant will move.

"Crane-ready" is a commitment made at design time. The owner may not buy the bridge crane for years, but the building has to be able to take it without strengthening. That means column capacity, bracket or runway beam provisions, foundation sizing, roof clearances, electrical and power-rail space and slab thickness under the crane aisle. Retrofitting any of those into a finished building is expensive and disruptive.

We work with the owner's operations and engineering leads to define the crane duty, capacity, span and number of bays, then build the structure to those numbers with room for the next step up.

Structure, Runway and Envelope

The structure is typically a rigid steel frame or a tilt-wall perimeter with interior steel columns, with extra-heavy columns and foundations at runway lines. Runway beams, rails, bumpers, stops and conductor bars are coordinated with the crane manufacturer. The roof has to clear the crane hook height and trolley, and the roof system accommodates additional point loads from lifting devices and mechanical equipment.

Inside, the floor slab carries more than the crane. Vehicles, tooling, fixtures and work cells all load the slab, and the slab under the crane aisle may need added thickness or reinforcement. We frame skylights, ventilation, overhead doors and dock positions so they do not conflict with the crane envelope, and we set the building enclosure to the thermal and daylighting needs of the work.

Loads the Engineer Designs For

Crane buildings are designed for the crane's vertical wheel loads, lateral thrust and longitudinal forces, plus the building's own gravity and lateral loads. Lakewood's published design loads include a 30 psf ground snow load, a 30 psf minimum roof snow or live load, wind Exposure C and a 36 inch frost depth, which gives a sense of the local inputs that tall steel frames in the metro are designed against. Each jurisdiction sets its own values, so the engineer of record confirms them for the specific site.

Denver ranks 10th among U.S. areas of at least 50,000 people for hailstorm risk and has had three of the ten costliest U.S. hailstorms, so roof assemblies on a tall building with expensive equipment below deserve more than the minimum. We discuss impact-resistant membranes, deck thickness and cover boards with the owner and the roofing manufacturer during design. Local building departments review the structure, and special inspection of welds, bolts and concrete is the norm.

Foundations, Slabs and Runway Alignment We Control

The parts of a crane building that fail most often are foundations that settle, columns that lean and runways that drift out of alignment. We manage the foundation and slab work and coordinate the steel erector's survey to address all three. Runway column footings are formed and poured to tight elevation tolerance, anchor bolts are held in templates and base plates are grouted to the engineer's requirement.

After erection, a survey crew checks runway beam elevation, straightness and span, and we adjust shims and bearings before rails are set. The crane manufacturer's installer does a final alignment check against the as-built runway, and any difference is resolved before the crane is commissioned.

Costs That Scale With Clear Height and Crane Duty

The big cost drivers are clear height, crane capacity and span. Each added foot of clear height lengthens columns and wall panels, adds wind load and enlarges the conditioned volume. Higher crane capacity multiplies column and foundation size, and wider spans increase roof framing weight. Heavy duty cycles require stronger runway beams and more stringent fatigue details.

Crane-ready provisions are cheaper than a crane. Installing column and foundation capacity for a future 10-ton or 20-ton crane while the structure is going up often costs a fraction of the later retrofit. We price two or three crane scenarios side by side so owners can buy the margin they actually need.

Planning With the Crane in the Drawings

We put the crane manufacturer, structural engineer, steel fabricator and erector in the same preconstruction conversation. Runway geometry, end-truck clearances, hook height, power feed and festoon or conductor details are resolved on paper rather than at the end of erection. We build a coordination model for the high-bay zone, where roof structure, lighting, fire protection, ductwork and crane envelope all compete for space.

On site, we sequence the work so foundations and steel for the runway lines are completed and surveyed before the roof deck closes the building. Construction cranes and lifts are planned to access the high bay without damaging finished runway components.

Operations That Use High-Bay Space

High bay and crane service fit metals and heavy industry operations, equipment fabrication, rail and heavy-vehicle repair and increasingly automotive and EV assembly.

For a manufacturing plant, a crane bay is often the heart of the building. The Suncor refinery in Commerce City, which processes 98,000 barrels per day, is a reminder of the heavy industrial base around the metro, and the maintenance and fabrication shops that serve it need lifting capacity.

The work is closely related to structural steel erection and equipment pads and foundations.

The slab under the crane aisle follows the practice described in industrial concrete floors.

In Golden, where freight rail serves businesses on the northeast side, a crane bay is a practical fit for fabrication and equipment shops that want rail access.

Settle the Crane Duty Before the Drawings Close

Share the lift weights, the span and the clear height you need. We will price crane-ready and crane-installed scenarios so you can buy the margin you will actually use.

Common Questions

What does crane-ready mean for a new building?

The structure, foundations and clearances are designed to accept a bridge crane of a stated capacity without modification, even if the crane is installed later. Runway columns, bracket provisions, roof clearances and power space are included. We document those provisions so the crane supplier can confirm the building will take their equipment.

How high should the clear height be for an overhead crane?

Clear height is set by the tallest lift, the crane hook height, the bridge and trolley dimensions and the headroom needed above the load. It is always greater than the working height of the load itself. The crane manufacturer provides the required dimensions, and we confirm they fit within the roof structure, lighting and fire protection.

Can a crane be added to an existing building?

Sometimes. The building structure and foundations must be evaluated by an engineer, and in many cases new columns and foundations are needed to carry runway loads. Free-standing crane systems and lighter workstation cranes are alternatives where the existing frame cannot take the load.

How are runway tolerances verified?

By survey. We check the runway beam elevation, straightness and span at each column, record the results and compare them to the crane manufacturer's tolerances. Adjustments are made before rail is installed, and a final survey follows.

Does a crane building need a thicker slab?

Often yes, at least under the crane aisle and wherever heavy loads are lifted or set down. The slab design depends on the loads, the subgrade and the joint layout. We coordinate with the structural engineer to provide thicker sections or reinforcement exactly where needed, and not across the entire floor.

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