Planning a Truck Service Facility: Bays, Circulation, Fuel, Wash, and Paving

A truck service facility exists to get vehicles back on the road. Every planning decision either shortens that turnaround or lengthens it. This guide walks through the decisions in the order they usually have to be made, drawing on two Penske facilities AP delivered in Texas: the Katy Service Center, with a 20-bay shop and eight acres of paving, and the Dallas regional facility, with five bays, a fuel island, and a wash in a compact 17,340 SF building.

The two projects are very different in size. The questions were the same.

Start with the fleet, not the building

Before any drawing, the operation has to be described. What vehicles will use the facility? Tractors, trailers, straight trucks, vans, or a mix? How many per day? What work will be done: preventive maintenance, heavy repair, tires, body work, rentals, fueling, washing? Will the facility serve one fleet or the public as well?

Those answers decide the bay count, the site size, the fueling capacity, and how much of the building is shop versus office. They also decide the largest vehicle the site has to turn, which is the single most important number in the site plan.

Bays, lifts, and shop systems

Bay count follows from throughput and the mix of work. Bay depth and door height follow from the longest and tallest vehicle. Drive-through bays move trucks faster but need a site that allows entry on one side and exit on the other. Back-in bays save site area at the cost of maneuvering time.

Inside the shop, the systems route through the structure and have to be coordinated before the steel is detailed:

• Lifts, which need pits or reinforced slabs and dedicated power
• Fluid distribution for oil, coolant, and waste fluids
• Compressed air, with the compressor located away from the work areas
• Exhaust extraction at every bay where engines run
• Tire handling, storage, and mounting equipment
• Lighting sized for inspection work, not just circulation

The Penske Katy shop holds 20 truck bays in 30,000 SF. The Penske Dallas facility fits five bays, truck lifts, and a tire carousel into a much smaller footprint. In both cases the equipment layout was resolved with the operator before the building was fixed.

Circulation: the site carries the operation

On a fleet facility the yard is not the leftover space around the building. It is the facility. At Penske Katy, the paving covers eight acres around a 30,000 SF shop, and that ratio is not unusual.

Plan the site as one loop: the gate, the check-in lane, the route to the bays, the approach to fuel and wash, the staging areas for trucks waiting for service, and the exit. Check every turn against the turning template of the largest vehicle, including trailers. Separate truck traffic from employee and customer parking so pedestrians are never in the truck path.

Queuing deserves its own thought. Trucks arriving at shift change or waiting for a bay need somewhere to sit that does not block the fuel lane, the wash, or the gate.

Fuel, DEF, and CNG

Fueling is a project within the project. It often goes in the ground first and is certified last, and it carries its own permitting, testing, and commissioning path.

Decisions to make early: tank capacities for diesel, gasoline, and diesel exhaust fluid; dispenser count and lane layout; containment and leak detection; and whether the facility will handle compressed natural gas vehicles, which require gas detection and ventilation in the shop. The Dallas facility carries a two-lane fuel island with 20,000 gallons of diesel, 4,000 gallons of gasoline, and 2,000 gallons of DEF, with CNG sensing in the service area.

Bring the fuel system contractor and the authorities having jurisdiction into the conversation during preconstruction, not after the site plan is drawn.

Wash systems and water

A truck wash is a water and drainage problem first and a building second. The lane has to be long enough and tall enough for the largest vehicle, which is why the Penske Katy wash runs 140 feet. Water recycling, oil and grit separation, discharge permits, and freeze protection all have to be settled before the slab is designed, because the trench drains, the pits, and the equipment room are cast into it.

Choose the wash equipment vendor early and design the building around the system rather than adapting the system to a finished building.

Heavy-duty paving

Yard paving is where a fleet facility earns its longevity. The keys are consistent: a section designed for the trucks it will carry, subgrade prepared for repeated axle loads, and drainage that keeps water away from the slab.

Design paving against the real loads and the real turning movements. Treat subgrade preparation and drainage as structural work. Where trucks turn and where they sit fully loaded, use heavier sections. Plan the concrete placement in sequences that keep the site usable if the facility has to operate during construction.

Driver and staff space

A fleet facility also serves people. Rental and service counters, driver lounges, locker rooms, breakrooms, training rooms, and offices have to sit where they support the operation without putting pedestrians in the truck path.

Penske Katy pairs its shop with 13,000 SF of office and training space. Penske Dallas fits rental and service lobbies, locker rooms, a driver lounge, and breakrooms into 2,863 SF. The scale differs; the principle is the same. Put the people where the work is, with a safe path between.

Commissioning and opening

The facility opens when the systems are certified, so plan certification as carefully as construction. Fuel, wash, lifts, compressed air, gas detection, and life-safety systems each need testing and sign-off, and staff need time on the equipment before the first truck arrives.

Build the commissioning sequence into the master schedule from the start. If the fleet has to keep operating during construction, plan the phasing so bays, fuel, or wash come online in an order the operation can use.

Questions to answer before the first meeting

• What vehicles, how many per day, and what work?
• How many bays, and drive-through or back-in?
• Is fueling in scope, and for which fuels?
• Is a wash in scope?
• Will the facility serve the public or one fleet?
• What is the driver and staff program?
• What date does the facility have to open?
• Does an existing operation have to keep running during construction?

Bring the answers, even partial ones, and AP’s preconstruction team can build a conceptual budget, a list of long-lead items, and a site plan that respects the largest truck you own. The truck and fleet facilities page describes how AP approaches this market.