Post Bollards for Bolt-Mounted Installation

Bolt-down post bollards are anchored to a finished slab — no breaking out, no concreting and no zone shutdown while concrete cures.

The same diameters as the concrete-in version: 76.1, 108 and 159 mm. Only the method of fixing differs, and that difference drives everything else — installation time, the option of relocating, and the threshold at which the structure gives way.

The advantage the concrete-in version lacks

A warehouse layout changes more often than the design assumes. Racking moves, picking zones shift, and what needs protecting today may stand somewhere else in a year. A bolt-down bollard can be removed and relocated, leaving a few holes behind rather than a crater in the slab.

• warehouses with changing zone layouts
• leased premises where work on the slab is restricted
• slabs with underfloor heating or embedded services
• installation during operation, without closing the zone

A conscious trade-off

That freedom is paid for in resistance. The impact goes into the anchors and the thin layer of concrete around them, so a bolt-down bollard gives way at a lower force than a concrete-in one of the same diameter. That is not a design flaw but a property of the fixing method — and it has to be allowed for when choosing the diameter.

Slab quality decides

A bolt-down bollard is only as strong as the concrete holding its anchors. On a cracked or thin slab, or one with a poorly bonded screed, the stated resistance stays theoretical. Before installation it is worth checking the thickness and condition of the slab at that specific point, not in the drawings.