Loading Dock Bollards & Corner Guards: Sizing, Types, and What They Cost
Why Every Loading Dock Needs Bollards
A forklift backing up at the wrong angle, a trailer creeping too far into the bay, a pallet jack clipping a corner — it happens at every busy dock eventually. Bollards absorb that impact so it doesn't hit a building column, a dock leveler frame, a utility line, or a person standing nearby. If you've already had a corner chewed up or a column dented, it's cheaper to install protection now than to keep paying for drywall, steel, or structural repairs every time it happens again.
Picking the Right Diameter and Height
Standard steel pipe bollards run 4" to 6" in diameter and are typically set with 24" to 42" of exposed height above the concrete, depending on what you're guarding. A 24" bollard like the 24" x 2" Steel Pipe Safety Bollard works well for lower-impact areas — pedestrian walkways, equipment corners, light traffic zones. For dock doors, building corners, and anywhere a fully loaded forklift or trailer might strike, step up to a heavier-gauge option like the 24" x 4-1/2" Bollard or the 24" x 5-1/2" Bollard — more steel diameter means more resistance to bending on impact.
Taller isn't always better. A 36" bollard like the 36" Steel Pipe Safety Bollard or a 42" option like the 42" Steel Pipe Safety Bollard makes sense where you're protecting something tall — an overhead door track, a building corner at trailer bumper height, a sprinkler riser — but for most dock-level impact protection, 24" gets the job done at a lower material and installation cost.
Standard vs. Slotted Bollards
If you want to chain off a bay temporarily — during maintenance, after-hours, or to block a door that's out of service — a slotted bollard like the 24" x 4.5" Slotted Steel Pipe Bollard paired with the 6 Ft Chain lets you close off the space between two posts without a fixed barrier. Standard (non-slotted) bollards are the right call anywhere you want permanent, unbroken protection.
Don't Skip the Caps
An open-top steel bollard collects rainwater, ice, and debris, and it rusts from the inside out. Plastic caps sized to match your bollard diameter — 1.75", 4.5", and 5.5" — keep water out and give the bollard a finished look. If your existing bollards have gone bare or lost their caps, replacing them is one of the cheapest ways to extend the life of what you've already got installed.
What a Full Dock Bay Setup Costs
For a typical dock door corner, budget for two to four bollards depending on the geometry — often one pair guarding each side of the door opening plus one or two guarding the nearest building corner or utility riser. At $122–$186 per bollard plus $6–$10 per cap, a four-bollard installation generally lands in the $550–$800 range before concrete work and labor. Compare that to the cost of a single forklift-vs-column impact repair, and the payback is usually immediate.
Getting It Right the First Time
Bollard sizing depends on what's actually driving through your bay — a sit-down counterbalance forklift hits differently than a walkie pallet jack — and on how the post gets set (concrete-filled sleeve, surface-mounted base plate, or direct-bury). If you're not sure which diameter, height, or mounting style fits your dock, send us your bay layout and what's doing the damage and we'll help you match the right bollard to the job.
Sample Image Gallery
