Choosing Your Dumpster Size (Canada)

Key takeaways

• →The 14-yard handles 95% of residential renovations — it's our most-rented bin in Canada.
• →Concrete, brick, and shingles are weight-bound — a 20-yard hits its cap before it fills.
• →Break down lumber and drywall to fit 30-40% more in the same bin.
• →Same-day delivery in 60 Canadian cities if you book before 11 AM local time.

Every week our dispatch team takes 40-50 calls that start with the same sentence: "I think I need a 14-yard, but I'm not sure." The good news is that 14 is right about 95% of the time for residential renovation. The bad news is that the 5% who size wrong end up either paying for empty air or hitting the weight cap on day three. This guide is the math we walk every caller through.

The five sizes, in plain English

Every haulier in Canada stocks roughly the same five roll-off sizes. The numbers refer to cubic yards of internal volume — not weight capacity, not footprint dimensions. Here's what each size really does:

• 10-yard (~3 pickup-truck loads, 2-3 ton cap, 14′×7′×4′ footprint): single-room cleanout, small bathroom reno, deck demo, garage purge.
• 14-yard (~4-5 truck loads, 4 ton cap, 16′×7′×4.5′): kitchen renovation, basement reno, mid-size project. This is our most popular bin and it fits 95% of residential jobs.
• 20-yard (~7 truck loads, 5 ton cap, 22′×7.5′×4.5′): whole-home renovation, roof tear-off (single-layer asphalt), large clutter clearance.
• 30-yard (~10 truck loads, 7 ton cap, 22′×7.5′×6′): demolition, double-layer roof tear-off, commercial fit-out.
• 40-yard (~14 truck loads, 10 ton cap, 22′×7.5′×8′): new construction, major commercial demolition, large industrial cleanout.

The math: cubic yards versus pickup trucks

Most homeowners measure debris in pickup-truck loads because that's the unit they understand. A standard half-ton pickup bed holds about 2.5 cubic yards when filled to the rails (no heaping). So the conversion is: divide your truck-load estimate by 2.5 to get yards, then add 30% for compaction and air gaps. A kitchen reno that "feels like 4 truckloads" is 4 × 2.5 × 1.3 ≈ 13 cubic yards — which is exactly why the 14-yard dumpster rental is our most-rented bin.

If you're working with a contractor, ask for their volume estimate in cubic yards directly — they've done this hundreds of times and their number is more reliable than your back-of-napkin count.

The three sizing mistakes we see most often

1. Sizing for volume when weight is the binding constraint.

Concrete, brick, asphalt, dirt, and shingles are weight-bound, not volume-bound. A 20-yard full of clean concrete weighs around 14 tons — well past our 5-ton cap on that bin. If your debris is mostly heavy material, downsize to a 10-yard (which has the same weight cap as a 20-yard for these materials but a smaller footprint and lower price) or run two rentals. See the full dumpster weight limits guide for material-by-material caps.

2. Forgetting that drywall and lumber compact poorly.

Long lumber and large drywall sheets create air pockets. A bin loaded with 12-foot 2×4s without breakdown looks 80% full at 50% actual volume. Cut lumber to under 6 feet and break drywall into manageable chunks before tossing — you'll fit 30-40% more in the same bin.

3. Overstuffing past the fill line.

Every bin has a top fill line (usually marked in paint). Provincial transportation regulations prohibit hauling debris above this line — drivers will refuse to load, and you'll pay a return-trip fee. If you exceed the line, the right answer is to call dispatch and book an additional bin, not to wedge a tarp on top.

What you don't put in (at any size)

No bin in Canada accepts: hazardous waste, liquid paint, motor oil, propane tanks, refrigerant appliances (unless drained and certified), tires, lead-acid batteries, asbestos, or consumer electronics. Each of these has a separate provincial waste stream — see our what goes in a dumpster guide for the line-by-line list and disposal alternatives.

Sizing by project: a quick reference

If you would rather match your job to a bin than do the arithmetic, here is the breakdown we give callers by project type:

• Single bathroom or powder-room reno: 10-yard. Tile, vanity, tub, and drywall from one room rarely clears half a 14.
• Kitchen renovation: 14-yard — cabinets, counters, flooring, and drywall from a standard kitchen is the textbook 14-yard load.
• Whole-home flooring replacement: 20-yard if you are pulling carpet, underlay, and subfloor across the house; 14-yard if it is a single floor of laminate.
• Single-layer asphalt roof tear-off (up to ~25 squares): 20-yard, but watch the weight — shingles are dense, so a heavy roof may cap a 20 before it fills.
• Garage or basement cleanout: 10-yard for clutter and furniture, 14-yard if there is renovation debris mixed in.
• Whole-home gut or small demolition: 30-yard for the volume of bulky, lightweight demolition debris.

These are starting points, not rules — the heaviest single material in the load can still pull you down a size for weight, which is why the quote form asks about it.

Booking the right bin

When you book through Wastebins.ca, the quote form asks two questions that determine sizing: "What's the project?" and "What's the heaviest single material going in?" Answer those honestly and our pricing engine routes you to the right bin. Same-day delivery if you book before 11 AM local time. Call dispatch at 1-888-663-2244 if you want to talk through it.