Warehouse construction estimating separates site development, foundations and slab, structural system, building enclosure, dock systems, office fit-out, MEP, fire protection, and owner-furnished equipment and racking. Arizona's West Valley and East Valley logistics corridors generate consistent warehouse activity. Site conditions, utility access, clear height, dock count, and operating use determine the relevant scope questions.
Define the shell scope clearly
A warehouse shell typically includes: site development and truck courts, foundations and slab-on-grade, structural framing (often tilt-up or steel), building enclosure (roof, walls, doors, glazing), and basic MEP roughing for office and life safety. It does not automatically include racking, process equipment, dock levelers and seals, lighting beyond code minimum, or the tenant's operating systems.
For speculative development, the shell may be priced without a defined tenant. For build-to-suit, the tenant's operating requirements affect the slab design, bay spacing, clear height, fire protection classification, electrical capacity, and dock configuration. Confirm which applies before pricing.
The slab is a design document, not a default
Warehouse slabs vary significantly in thickness, reinforcement, flatness tolerances, joint spacing, surface finish, and load capacity. A slab designed for racking with forklift traffic has different requirements from a slab for pedestrian-only use. Joint and crack control details affect cost and long-term performance.
For Arizona sites, confirm subgrade preparation, vapor retarder requirements, and any geotechnical conditions. The concrete estimating guide explains why a volume calculation alone cannot define the slab package.
Dock systems require their own scope
Dock levelers, bumpers, seals, shelters, door and frame systems, vehicle restraints, dock lights, and approach aprons are frequently combined into a dock package. Confirm the dock count, type (mechanical or hydraulic), and access road dimensions before pricing.
For refrigerated or temperature-controlled warehouses, dock doors and seals have additional insulation and air seal requirements. Confirm whether the tenant's operating requirements affect the dock design — a different tenant can require a different dock type even in the same building shell.
Arizona West Valley logistics context
The I-10, Loop 101, and Loop 303 corridors in Glendale, Peoria, Surprise, and Buckeye have attracted significant distribution and logistics development. Site characteristics in this corridor vary, with some parcels having existing infrastructure and others requiring substantial utility extension or off-site improvement.
For industrial estimating in this corridor, identify whether utility infrastructure (water, sewer, power, gas) is immediately available or requires extension. Also confirm the applicable jurisdiction — several West Valley growth areas cross municipal boundaries or involve unincorporated Maricopa County.
Example: a Glendale distribution center
A hypothetical Glendale distribution facility has a 300,000 square-foot shell, 32-foot clear height, 40 dock positions, a 5,000-square-foot office component, and a large truck court. The estimate separates: site development and truck courts, foundations and slab (specified to tenant racking loads), tilt-up structural panels, roof and envelope, dock package, office fit-out, MEP, fire suppression to ESFR classification, lighting, and yard work.
Owner-furnished items — racking, material handling equipment, and office furniture — are noted as exclusions. The fire protection classification depends on the tenant's commodity storage group; confirm that before issuing the fire suppression scope to a subcontractor.
Questions, clarified.
What drives warehouse cost per square foot?
Clear height, slab specification, dock count and type, office ratio, fire protection classification, site development extent, and whether the project is shell-only or built-to-suit. A single figure without those variables has limited use as a cost benchmark.
Is tilt-up always cheaper than steel for warehouses?
Not automatically. The comparison depends on design, site access, crane availability, concrete conditions, and local subcontractor market. Get quotations from both approaches on the specific project rather than assuming a universal rule.
What is ESFR fire suppression?
Early suppression fast-response — a high-performance sprinkler system that protects high-piled storage from above without in-rack sprinklers. It has specific head selection, hydraulic design, and supply requirements. Confirm the commodity classification before pricing the fire suppression system.
Are truck courts included in a warehouse estimate?
They should be, but confirm the boundary. Truck courts, parking, utility connections, signage, fencing, landscaping, and off-site improvements may be separate contract scopes depending on the development structure.