Pipe bollards look trivial on a drawing, a circle with a note, but they do real work and they are easy to under-scope. They protect people, equipment, and structure from vehicles, and they show up in the miscellaneous metals package on almost every commercial job. Here is what a buyer needs to know to spec and price them correctly.
What is a pipe bollard and what does it do?
A pipe bollard is a steel post set in the ground to stop or deflect a vehicle. Most are fabricated from Schedule 40 steel pipe, set in a concrete footing, filled with concrete, and finished with paint or a cover. Their job is impact protection: keeping a truck off a dock door, a car off a storefront, a forklift off a fire riser or electrical panel.
They also do quieter work, guiding traffic, marking corners, and protecting building edges from daily bumps and scrapes. Either way, they are a fabricated steel item, which is why they belong in the miscellaneous metals checklist and get missed when that package is fragmented.
How do you size a pipe bollard?
Three variables drive a bollard: pipe diameter and wall, embedment depth, and footing size. They work together against one thing, the impact you expect.
| Location | Typical exposure | Typical starting point |
|---|---|---|
| Storefront, pedestrian edge | Low-speed cars | Smaller diameter Schedule 40, standard footing |
| Loading dock, drive lane | Trucks and trailers, repeated contact | Larger diameter, deeper embedment |
| Parking garage columns | Low-speed but frequent impact | Mid diameter, protective placement |
| Critical equipment (risers, gear, meters) | Must not be struck | Sized to protect, per spec and code |
Read those as starting points, not final numbers. Bollard size is set by the structural detail and the governing code or utility requirement for what is being protected. Do not standardize one size across a job without checking each condition.
Why concrete fill and embedment matter
A bollard resists impact in two ways, and both depend on more than the pipe:
- Concrete fill inside the pipe stiffens it so it absorbs and resists a hit rather than folding. It also adds mass and helps shed water that would otherwise pool and corrode the pipe from inside.
- Embedment and footing are what actually stop the vehicle. The pipe transfers impact into a concrete footing in the ground, so embedment depth and footing size do the real structural work. A shallow bollard in a small footing will lever out of the ground no matter how thick the pipe.
The common mistake is treating the pipe as the whole answer. The foundation is the answer. The pipe just delivers the load to it.
What should a GC coordinate on bollards?
Keep bollards from becoming a field surprise by confirming a few things up front:
- Count and locations. Bollards hide on civil, architectural, and MEP sheets. Gather them onto one list so none are missed.
- Sizing by condition. Confirm diameter, wall, embedment, and footing per location, not one blanket detail.
- Coordination with slabs and paving. Footings often tie to concrete work, the same embed-style coordination that trips up steel-to-concrete scope.
- Finish. Paint, galvanizing, or removable covers, especially in coastal or high-visibility areas.
TMG fabricates and installs pipe bollards as part of its miscellaneous metals scope, coordinated with the structural steel and the concrete schedule, so a small item does not become a late change order. For the platforms and access that often accompany them, see choosing bar grating.