What Is Loading Dock Concrete Work?
A loading dock is the hardest-worked concrete on any commercial property. It takes trailer impact at a single edge, landing-gear point loads that concentrate several tonnes onto a few square inches, tractor turning that grinds the surface, and forklift traffic crossing the same threshold hundreds of times a day. Ordinary floor concrete does not survive it.
So dock work gets a different specification. Approach slabs are eight inches thick with a 15M rebar grid over a properly compacted sub-base. The mix is 35 MPa rather than the 32 MPa we use on residential driveways, chosen for impact and abrasion resistance as much as compressive strength. And the exposed dock edge gets embedded steel angle, so the trailer hits steel instead of concrete.
Leveller pits are a precision job. Each manufacturer publishes pit dimensions, anchor positions and drainage requirements for their equipment. We form to those drawings, so the unit drops in without anyone modifying the site afterwards. Send us the model number before we quote and the pit will be right the first time.
What’s Included
- Excavation, sub-base compaction and vapour barrier
- Rebar cage sized for impact and point loading
- 35 MPa high-load concrete mix
- Embedded steel angle armouring at the dock edge
- Dowelled joints for load transfer to adjacent slabs
- Leveller pit formed to manufacturer dimensions with anchors
- Pit drainage tied to the site system
- Dry-shake hardener at wheel paths
- Bay-by-bay sequencing around your shipping schedule
Common Problems We Solve
Broken Dock Edges
The classic failure. Concrete chips at the edge, then breaks back in larger pieces, then exposes rebar. Once rebar is exposed, corrosion accelerates the damage every winter. The repair is to saw-cut the damaged strip back to sound concrete, install new embedded steel angle, and repour just that strip. That is a fraction of a full pad replacement and can usually happen overnight.
Cracked Approach Slabs
Trailer landing gear punches down through slabs that were poured to general yard specification. Where an approach slab is cracking in a repeating pattern in front of each bay, the slab was under-designed rather than badly built. Replacement with proper thickness and reinforcement is the only durable answer.
Flooded or Corroded Leveller Pits
Pits collect meltwater, road salt and debris. A pit without working drainage corrodes the leveller frame from underneath and shortens equipment life considerably. Retrofitting drainage during a pit rebuild is straightforward and protects a much more expensive piece of equipment.
Uneven Dock Height
Where an approach slab has settled, the dock face no longer matches trailer bed height and levellers run at the end of their travel. Lifting the approach slab with polyurethane foam can restore geometry without demolition, provided the concrete itself is sound.
How Much Does Dock Concrete Cost in Toronto?
Dock work runs $12 to $22 per square foot. Cost drivers:
- Scope. An approach slab is far less involved than a full pit build.
- Steel. Embedded angle armouring, anchors and heavier rebar all add material cost, and all pay back.
- Excavation. Pits are deep and often hit services that need locating and protecting.
- Drainage. New pit drainage and connections sit outside the base rate.
- Schedule. High-early mixes and night work carry a premium against the shipping downtime they avoid.
- Bay count. Doing several bays in one mobilisation is more efficient per bay than one at a time.
When Should a Dock Be Rebuilt Rather Than Repaired?
Repair when the slab behind the edge is sound and the damage is confined to the edge strip, isolated spalls, or joints. That covers most of what we see, it is the cheaper and faster path, and it is quoted under commercial concrete repair. Rebuild when the approach slab is cracked through and moving differentially, when the sub-base under the pad has failed, or when a new leveller requires pit geometry the existing pit cannot provide.
Dock work rarely stops at the door. The apron in front of the bays is usually poured at the same time as the parking lot, the floor inside the door is commercial concrete flooring or a warehouse slab carrying the same forklift traffic, and openings for new drainage or levellers are made with concrete cutting and coring. Where an approach slab has settled but is otherwise intact, concrete lifting and levelling restores the transition overnight.
Send us your bay count, leveller model and shipping constraints and we will come back with a written published-rate quote and a bay-by-bay sequence inside two hours.
