The handful of physical specs that decide whether a warehouse works for your operation, what modern buildings offer, and how to check them before you sign.
The industrial building specifications that matter most are clear height, dock doors, truck court depth, column spacing, floor slab, power and sprinklers. Modern distribution buildings typically offer 32 to 40 feet of clear height, columns 50 feet or more apart and truck courts at least 120 to 130 feet deep, plus enough docks and trailer parking.
Key takeaways
- Clear height is measured to the lowest obstruction, such as sprinkler heads, lights or joists, not to the roof deck.
- Moving from about 24 to 32 feet of clear height can add a full level of racking, which is why a higher-rent building can be cheaper per pallet.
- Truck court depth, trailer parking and dock door count limit throughput more often than square footage does.
- Wider column spacing, 50 feet or more with a deeper speed bay at the docks, gives more flexibility for racking and forklift aisles.
- Flyer numbers are a starting point, not a warranty. Measured specs and lease language settle what a building actually offers.
Which industrial building specifications matter most?
Clear height, dock doors, truck court depth and column spacing matter most, followed by slab strength, power and sprinklers. Square footage gets the attention, but these specs decide how much you can store, how fast trucks turn and whether your equipment fits. Two 40,000 SF buildings in Bakersfield can perform very differently because of clear height, docks and yard.
The table below summarizes the core specs and what older and modern buildings typically offer. The ranges blend brokerage and owner research cited in the sources, and individual buildings vary.
Core industrial specs at a glance
| Spec | Older or small-bay buildings | Modern bulk distribution | Why it matters |
|---|---|---|---|
| Clear height | 18 to 28 feet | 32 to 40 feet | Sets how many rack levels you can store |
| Column spacing | About 40 to 45 feet | 50 feet or more, with a 60-foot speed bay | Rack layout, aisle widths, forklift flow |
| Truck court depth | Often shallow or shared | At least 120 to 130 feet; up to about 180 with trailer parking | Safe trailer maneuvering and staging |
| Dock doors | Few dock-high doors; more grade-level | Roughly 1 per 6,700 to 12,000 SF for distribution | Loading throughput |
| Floor slab | Thinner, older slabs | 7 inches or more, reinforced | Rack point loads and heavy equipment |
What is clear height, and how much do you need?
Clear height is the usable vertical distance from the finished floor to the lowest immovable obstruction, which can be a sprinkler deflector, light fixture, duct, joist or beam. It is not the height of the roof deck. Flyer numbers are sometimes measured at the highest point rather than the lowest obstruction.
Link Logistics, a large industrial owner, groups buildings roughly as follows: light industrial and flex at 18 to 24 feet, mid-bay warehouse at 24 to 28, standard distribution at 28 to 32, Class A bulk at 32 to 36, and large automated e-commerce at 40-plus. A national logistics research report says occupiers of modern logistics space now look for 36 to 40 feet, compared with 18 to 32 feet in older buildings.
How much you need depends on what you store. A contractor with long materials and a forklift may be fine at 20 feet. A distributor racking pallets five or six high needs 32 feet or more. Taller storage also raises fire code questions, which our article on ESFR sprinklers and high-piled storage permits covers.
How many dock doors does a warehouse need?
For distribution, plan on roughly one dock door per 10,000 to 12,000 SF at the lighter end and about one per 6,700 SF for busier operations. Dock-high doors sit at trailer-bed height, typically about 48 to 52 inches above the truck court, so forklifts drive straight into a trailer. Grade-level (drive-in) doors sit at floor level for box trucks, forklifts and equipment. Common sizes are about 9 by 10 feet for dock doors and 12 by 14 feet or larger for grade-level doors, according to industrial property publisher WareCRE.
One industrial broker’s guide puts a functional distribution ratio at one door per 10,000 to 12,000 SF. Link Logistics suggests at least 15 docks for a 100,000 SF facility, which works out to about one per 6,700 SF.
Manufacturing users usually need fewer docks. Cross-dock and parcel operations need many more. In Kern County, many ag, oilfield and contractor users care as much about grade-level doors and a fenced yard as they do about dock positions.
Dock equipment matters as much as the count. Levelers, seals or shelters, bumpers, lights and trailer restraints all affect safety and speed, and replacing them is expensive.
How deep should a truck court be?
Plan on at least 120 to 130 feet of truck court depth for tractor-trailers. The truck court is the paved area in front of the dock doors where trucks back in and trailers stage. Link Logistics recommends at least 120 feet. National logistics research lists 130 feet or more as a modern spec. The industrial broker’s guide describes 130 to 180 feet for functional distribution buildings, with the deeper end allowing a row of trailer parking.
Trailer parking is the spec tenants most often say they lack. A May 2021 national brokerage survey of industrial professionals found trailer parking was the most popular wish, with many tenants wanting at least one extra trailer stall per dock door. Shared courts, unsecured yards and trucks that must back out onto a public street also limit how usable a court is.
Why does column spacing matter?
Columns support the roof, and their grid determines how racking and aisles fit. National logistics research notes that modern facilities offer at least 50 feet between columns, compared with 40 to 45 feet in older properties. Grids such as 52 by 50 and 56 by 50 feet are common in newer Southern California distribution buildings.
A deeper bay along the dock wall is often called a speed bay. One industrial broker’s analysis recommends at least 60 feet from the dock to the first column, which leaves room to stage inbound and outbound loads. The wrong column grid can cost a rack row or force narrow-aisle forklifts, which is why a racking layout drawn before signing shows what actually fits.
What about floor slab, power, sprinklers and office space?
Slab. Modern logistics buildings commonly have reinforced slabs of 7 inches or more. Link Logistics notes typical floor loads of 125 to 150 pounds per square foot, with heavy manufacturing needing far more. Rack legs and heavy machinery create point loads, so the slab spec and any geotechnical report matter.
Power. Manufacturing, cold storage and automated warehouses can need three-phase service of 2,000 amps or more. Upgrades can take many months, and our industrial power guide explains why a building’s existing service can limit what equipment it handles.
Sprinklers. Your commodity, storage height and sprinkler design have to match. A building with an older system may not permit high-piled storage without upgrades.
Office and parking. Most warehouse users need only a small office. Too much office raises rent and cuts usable warehouse space. Too little car parking can hurt labor-heavy operations.
How do specs vary across Kern County’s industrial stock?
Kern County’s market is large and mixed. A national brokerage’s Q2 2026 Bakersfield industrial report counts 67.4 million SF of industrial inventory, a 10.1% availability rate and an average asking rent of $0.71 per SF per month NNN (triple net, meaning tenants pay taxes, insurance and upkeep). The report’s largest recent delivery was a 711,000 SF pre-leased distribution center in Arvin.
In general, much of the older Bakersfield stock was built for oilfield service, ag and contractor users. Lower clear heights, grade-level doors and big yards are common in those buildings. Newer distribution product in Arvin, Shafter and at Tejon is built closer to modern bulk specs. With space available, tenants can be choosy, but the right building is the one whose specs match your operation, not the newest one. Our guides to types of industrial property and how much warehouse space you need can help narrow the search.
How do you verify a building’s specs before you sign?
Flyers and listing sites are a starting point, not a warranty. A typical spec walk-through before a letter of intent (LOI) is signed or contingencies are removed covers these steps:
- Measure clear height at several points, under the lowest obstruction.
- Get the sprinkler design criteria and compare them to your commodity and storage height.
- Get the electrical service size (amps and voltage) and inspect the main switchgear.
- Walk every dock and test the levelers, doors and seals.
- Obtain a site plan showing truck court depth, trailer stalls and truck turning paths.
- Confirm zoning allows your use and any outdoor storage you need.
- Put critical specs in the LOI and lease, including any landlord work to bring items up to standard.
Our due diligence checklist and industrial leasing process guide walk through the rest of the steps.
Worked example: 24-foot vs. 32-foot clear in a 40,000 SF Bakersfield warehouse
A taller building can cost less per pallet position even at a higher rent. A distributor compares two 40,000 SF Bakersfield buildings. Assume the rack layout yields 1,600 pallet footprints in either building and that each rack level needs about 5 feet (a 4-foot load plus beam and clearance). Assume also that roughly 3 feet must stay clear below the sprinklers. The 24-foot building fits 4 levels (21 feet of usable height) and the 32-foot building fits 5 (29 feet).
The 24-foot building is offered at the Bakersfield average of $0.71 per SF per month NNN from the national brokerage report cited above, and the 32-foot building at $0.80. These are illustrative assumptions, not quotes. Actual capacity depends on the racking design and fire protection engineering.
Cost per pallet position (illustrative)
| 24-foot clear | 32-foot clear | |
|---|---|---|
| Rack levels | 4 | 5 |
| Pallet positions (1,600 footprints x levels) | 6,400 | 8,000 |
| Monthly base rent (40,000 SF) | $28,400 | $32,000 |
| Rent per pallet position per month | $4.44 | $4.00 |
Frequently asked questions
What is a good clear height for a warehouse?
It depends on how high you store. Modern bulk distribution buildings typically offer 32 to 40 feet, while light industrial and flex space often runs 18 to 24 feet. Pallet distributors usually want 32 feet or more. Contractors, fabricators and yard-based users in Kern County often do fine with less, especially when grade-level doors and outdoor storage matter more.
How is clear height measured?
It runs from the finished floor to the lowest immovable obstruction in the storage area, such as a sprinkler deflector, light fixture, duct, joist or beam. The roof deck is not the reference point. Obstructions vary across a building, so the number differs by location. Fire code also requires a gap between the top of stored goods and the sprinklers.
How many dock doors per square foot does a warehouse need?
One door per 10,000 to 12,000 SF is a common distribution benchmark, and busier users may want one per 6,700 SF or so. Manufacturers usually need fewer docks, while cross-dock and parcel users need many more. Trailer parking and truck court depth often cap throughput before door count does.
What is a speed bay in a warehouse?
A speed bay is the deeper column bay along the dock wall, ideally at least 60 feet from the dock doors to the first line of columns. It gives forklifts room to stage pallets without blocking aisles. A building without one can still work, but high-volume loading tends to be slower and more congested.
What is the difference between dock-high and grade-level doors?
Dock-high doors sit at trailer-bed height, about 48 to 52 inches off the court, so forklifts can drive into a semi-trailer. Grade-level doors sit at floor level for box trucks and equipment. Distribution users need dock-high doors. Many Kern County contractors, ag users and service companies rely more on grade-level doors.
How deep should a warehouse truck court be?
For 53-foot trailers, plan on at least 120 to 130 feet so drivers can back in safely. Courts with a row of trailer parking often run deeper, up to about 180 feet. Security, shared use by a neighbor and trucks backing out onto a public street also affect how usable the court is.
If you are comparing buildings in Bakersfield, Shafter, Arvin or Tejon, Kern CRE can help you check specs in the field and line up options that fit your operation. Call Kern CRE at 855-KERN-CRE (855-537-6273) or contact us. Get Kern County CRE news monthly: subscribe to the Kern CRE report.
Sources
- The Case for Modern Logistics Facilities, CBRE Investment Management, October 2023.
- Quality and Modernity Deliver for U.S. Logistics, CBRE Investment Management, March 2024.
- What Is Clear Height? A Guide to Warehouse Ceilings and Vertical Space, Link Logistics, March 2026.
- How to Choose Industrial Warehouse Space: Essential Features to Consider, Link Logistics, December 2025 (updated March 2026).
- The Industrial Spec Sweet Spot: What Tenants Want, Cushman & Wakefield, May 2021.
- Truck Courts, Docks and Doors: The Anatomy of a Functional Distribution Center, Miller Industrial Properties (SIOR broker article).
- Why Are Bays and Column Spacing So Important in Supply Chain Real Estate?, industrial broker blog, December 2016.
- Loading Docks, Ceiling Heights and Power Requirements: Understanding Industrial Property Specs, WareCRE, February 2025.
- Bakersfield Industrial MarketBeat Q2 2026, Cushman & Wakefield, Q2 2026.
About this article
Kern CRE prepared this article with help from AI research and writing tools. An editor reviewed the draft, checked its facts against the sources linked above and edited it for accuracy and clarity. It is general information, not legal, tax, investment or financial advice; talk with a qualified professional about your situation.