Spec notes · 2026-11-04

Warehouse floor coating planned around the forklift lanes and the charging bay

Most warehouse floor quotes start with a number of square feet. The wear comes from a few spots instead, where a loaded truck turns, stops, drops off a dock plate or sits overnight on a charger, and those spots take up a small share of the building.

What should a warehouse floor coating be specified from?

From the traffic plan, not the footprint. Where the forklifts run, turn, stop and charge, and where people walk, decides what each part of the slab needs. That is how we spec commercial epoxy flooring in Cape Girardeau: a plan of the building with the lanes drawn on it, and a system named for each zone of that plan.

A single product rolled wall to wall gets one of two things wrong. If it is built for the aisle ends, you pay for heavy build under racking that never sees a wheel. If it is built for the average, it loses its top coat at the turns and the dock first.

Distribution, light-manufacturing and wholesale buildings along the Nash Road corridor, out by I-55 in Jackson and near the river port at Scott City tend to share the same parts list. There are long lanes between racking rows, turns at every aisle end, a dock with a staging lane behind it, pick faces where trucks and people work the same spot, walkways to the breakroom and the exits, and a battery charging area. That last one is the zone most bids leave off the page, and it needs a different chemistry from everything around it.

The two things that make a spec possible are a layout, even a sketch on the back of a racking drawing, and the kind of trucks on the floor. A sit-down counterbalance truck, a reach truck and a walkie pallet jack load a slab very differently.

Does the floor under the pallet racking need the same coating as the aisles?

No. The racking rows see foot traffic and the odd pallet dragged off a low beam, so a lighter build does the job there, and the heavy build goes in the lanes where wheels run.

Coating before the racking goes up is the clean way to do it. In a building that is already racked, the coating runs around the existing base plates. When the racking moves later, the old anchor holes get patched and touched in so they do not become the first place the coating lifts.

What does a forklift do to a coated floor where it turns and where it stops?

It wears the floor hardest on a handful of spots you can mark on the layout, and almost none of them sit in the middle of a straight lane. A truck turning in place, dropping off a ledge or stopping and starting on one spot all day puts its wear onto a patch of floor a few feet across. Find those patches on the plan and you have found where the heavy build goes.

• The pivot at an aisle end. A loaded truck turning tight scrubs its steer tires in place, and you can usually see it already as a dark crescent of rubber on the bare concrete.
• Saw-cut joints that hard wheels cross all shift. The joint edge breaks first and gets filled flush during prep. The shop floor write-up covers why the edge goes before the field.
• The lip of the dock plate or leveler, where the wheels come off the plate and land on the slab with the load still on the forks.
• Pick faces, where a loaded truck stops, waits and pulls away on the same square yard of floor through every order.
• The staging lane behind the dock doors. Pallets get pushed and dragged there more than anywhere else in the building.

Those places get the heavier build, or urethane cement where the abuse is worst. The open lanes between them and the floor under the racking do not need it.

What does a forklift battery charging area need from the floor?

An acid-resistant system with an edge that keeps a spill in the bay. Lead-acid forklift batteries hold sulfuric acid electrolyte, and the drips and splashes around a charger etch and stain a standard epoxy film over time. The charging footprint gets a novolac epoxy or a urethane cement system, with a raised or coved edge around it.

OSHA’s powered industrial truck rule, 29 CFR 1910.178(g), says charging areas must have facilities for flushing and neutralizing spilled electrolyte. The flush water and the neutralizer both end up on the floor, so the bay gets a coating the acid does not lift and an edge that keeps the wash inside it.

You can often spot the charging area before anyone points to it. The concrete at the base of the chargers has gone pale or rough, sometimes with a white crust where drips dried.

A fleet that runs on lithium-ion trucks makes this zone simpler, with no acid at the charger to spill. A building that runs both kinds gets the acid-resistant floor where the lead-acid trucks charge.

How are aisle lines and crosswalks laid out before they are coated in?

From the same traffic plan the coating was specified from. The plan shows the forklift lanes and the pedestrian walkways, and the lines mark where they cross. OSHA’s material handling rule, 29 CFR 1910.176(a), says that where mechanical handling equipment is used, permanent aisles and passageways have to be appropriately marked. It does not set the colors.

The crossings are what most layouts get wrong. People meet trucks at the dock, at the breakroom and restroom doors and at the exits, and a walkway that stops short of a door sends people across a lane at the worst spot. A painted crosswalk at each of those meetings tells a driver where to slow down before anyone steps out. In front of electrical panels, extinguishers and exit doors, a hatched no-park zone keeps a pallet from being set down where it blocks them.

The lines go into the top coat rather than over it, so they wear at the same rate as the floor. Commercial systems here run $5 to $12 per square foot depending on the spec, and the striping is priced as part of it. The cost page lays out what a commercial floor costs per square foot here next to the residential systems.

Racking plans change, and the striping has to follow them. When a row moves or a new pick area goes in, the lane lines and crossings get laid out again on the new plan before anything is re-striped, the old lines are ground off rather than painted over, and the new ones go into a fresh top coat across that section.