Order Concrete →CONCRETE
SLAB
TORONTO.
Garage slabs, shed slabs, basement pours, commercial floors. Formed, reinforced, and finished by crews who've been placing concrete across Toronto for 58 years.
Construction writer & concrete industry enthusiast based in Toronto. Covering concrete slabs, garage pads, basement & commercial floor pours and the GTA concrete trade.
Garage, shed,
basement, commercial.
Garage Slab
Single, double, and detached garage slabs. Proper slope to floor drain. 32 MPa, rebar-reinforced, control-jointed.
Shed Slab
Small accessory structure pads from 8×8 to 20×24. Formed and poured to code depth — no shortcuts on the base prep.
Basement Slab
New pours for underpinned or excavated basements, crawl-space to full-height conversions, additions. Moisture barrier below.
Patio Slab
Backyard and pool-surround slabs, broom or exposed finish, sloped for drainage. Any shape including curves and steps.
Commercial Slab
Warehouse floors, distribution centres, automotive, retail. Laser-screed, fibre-reinforced, joint layout specified by engineer.
Equipment Pad
HVAC pads, generator pads, transformer pads, dumpster pads — isolated or integrated into existing concrete.
Right spec
for each slab.
| APPLICATION | THICKNESS | MIX STRENGTH | REINFORCEMENT |
|---|---|---|---|
| Residential (driveway, patio) | 4" (100 mm) | 20–32 MPa air-entrained | Fibre mesh or rebar grid |
| Garage floor | 4–5" (100–125 mm) | 32 MPa air-entrained | Rebar #4 @ 18" o/c |
| Basement slab | 3.5–4" (90–100 mm) | 25–32 MPa | Wire mesh or fibre |
| Commercial floor | 5–8" (125–200 mm) | 32–40 MPa | Rebar per engineer |
| Exterior commercial | 5–6" (125–150 mm) | 35 MPa air-entrained | Rebar per engineer |
How we build
your slab.
Excavation & Grade
Dig to required depth. Verify subgrade bearing capacity. Remove soft spots and import fill if needed.
Base Preparation
4–6" granular A placed and compacted in lifts. Plate compactor or roller for large areas. No skimping — it is the most important step.
Vapour Barrier
10-mil poly placed under all interior slabs. Lapped seams taped. Keeps ground moisture out of the concrete.
Reinforcement
Rebar or fibre mesh placed to design — chairs or dobies keep steel at proper cover. No rebar sitting on the ground.
Forming
Perimeter forms set level. Screed rails or laser for large pours. Control joint locations marked.
Pour & Finish
Concrete placed, vibrated for consolidation, screed, bull-float, hand edge. Broom, trowel, or exposed aggregate finish applied.
Joints & Cure
Control joints saw-cut or hand-tooled while plastic. Curing compound sprayed immediately. Protect for 7+ days.
Common questions.
How thick should a concrete slab be?
Residential slabs are typically 4" (100 mm), garage floors 4–5", and commercial floors 5–8" depending on load — an engineer specifies exact thickness for heavy-duty applications.
Do I need rebar or fibre mesh in my slab?
Fibre mesh controls shrinkage cracking in light-duty residential slabs. Rebar is required for garage floors, driveways, and any slab carrying vehicle or structural loads.
How long before I can walk or drive on a new slab?
You can walk on a new slab in 24–48 hours. Vehicle traffic should wait 7 days, and the slab reaches full design strength at 28 days.
Do you install a vapour barrier under basement slabs?
Yes. We place 10-mil poly under all interior slabs with taped, lapped seams to keep ground moisture out of the concrete.
Can you pour a slab in cold weather?
Yes, with cold-weather mix additives, insulated blankets, and extended cure protection. Toronto winter pours are common practice for us.
What does a concrete slab cost in Toronto?
Pricing depends on size, thickness, access, and reinforcement — most residential slabs run $8–$14 per square foot. We provide firm quotes after reviewing your site.
Noticed cracking or settling in an existing slab? See our concrete repair services, or check ready-mix delivery if you're supplying your own crew.
How much concrete
for your slab?
Enter your slab dimensions below. Waste factored in at 10%. Result in m³, yards, and truck count.
Price your
slab today.
Tell us dimensions, application, and any access constraints. Quote back in under 2 hours.