How are bollards installed in concrete?
Bollards are installed in concrete either by setting the post in a drilled or cored hole with a poured footing, or by bolting a base plate to the slab with anchors. The method depends on the bollard type, the loads it must resist and the thickness and condition of the existing concrete.
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The two main methods
Each has its place, and the choice affects cost, strength and how easy the post is to move later.
- Embedded: a hole is cored or excavated, the post is set plumb, and concrete is poured around it to form a footing
- Surface-mounted: a base plate is bolted to the slab with anchors, used where digging is not possible and the loads are light
- Removable: a socket is set in the footing so the post can be lifted out and locked back in
- Rated systems: installed to the test design, with specified footing size and reinforcement
A typical embedded installation
- Locate servicesUtilities are marked before any cutting or drilling.
- Core or cutThe slab is opened to the required size.
- ExcavateThe hole is dug to the depth the design calls for.
- Set and plumbThe post is placed, braced and checked.
- Pour and cureConcrete fills the hole and is left to cure.
- FinishThe surface is patched, and posts are painted or sleeved.
Why the footing matters
A bollard is only as strong as what holds it. Shallow or small footings fail by tilting or pulling out. Depth, diameter and concrete strength are set by the design and, where frost is a factor in Ontario, by the need to avoid movement from freezing ground. Rated systems specify these and must be followed exactly.
Existing surfaces and services
Underground utilities, thin slabs, heated floors and waterproof membranes all affect the method. In a parkade or on a slab over a space, surface-mounted options or special details may be needed. We locate services first and plan around them. See bollard installation Toronto for the process and our bollards page for the types.
Permits and coordination
Some sites need permits or owner approval, and busy properties need work scheduled around operations. We coordinate access and phasing so that traffic is disrupted as little as possible. Quotes are free.
Related questions
Can bollards be installed in asphalt?
Yes. The footing is poured below the paving, and the asphalt is patched around it.
How long does installation take?
It depends on the number of posts and the site. Concrete needs time to cure.
Do I need to supply the posts?
No. We can make and install them, or install posts you already have.
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