Megabac Environnement — dumpster rental
20 cubic yard Megabac dumpster delivered on a paver driveway for a roof replacement — bundles of new shingles stacked on the roof

Roofing dumpster: 10, 20 and 40 cubic yards

Roofing shingles go in the mixed dry materials dumpster, along with wood, drywall and metal. The benchmark that decides the size: 25 bundles weigh one ton, and a 20 yard holds up to 175 of them. Deliveries and pick-ups run Monday to Friday, PROTEC-O-SOL planks included. One call to 514 708-2424 confirms the size and the date.

Why weight decides before volume

On almost every residential job, volume is in charge: you fill the box, it leaves. A roof is the exception. Shingles are dense and they stack flat — 25 bundles weigh one ton. A shingle dumpster already weighs tons while it is barely a third full. It is the only house project where the eye is that wrong.

Two numbers never to confuse. Capacity is what fits: a 20 yard swallows up to 175 bundles, which is 7 tons of shingles. The included tonnage is what the rental has already paid for: 2 tons on the 20 yard, 4 tons on the 40 yard. Shingles therefore reach the included tonnage long before they fill the dumpster. The included tonnage is not a capacity limit — it is a billing threshold.

Beyond it, the excess is billed from the disposal centre's weigh ticket, never rounded up: the real weight of your load, nothing estimated. The Pricing page lists everything that is included and the only possible extras. Fill to the rim, never above the walls.

From 50 bundles on, both sizes work, and you are the one who decides. The 20 yard if the roof is all you are throwing out. The 40 yard if you want to use the leftover tonnage to empty the garage or the basement in the same rental: the box is already in the driveway, it may as well work twice. The dumpster size guide compares the three sizes in detail.

Roofing calculator

Shingle calculator: how many bundles, which dumpster

The number of bundles decides the size, not how big the roof looks. Count the ones going up on the house, or divide the area by 32: the calculator converts to tons and tells you right away which size leaves without an overload.

32 sq ft covered by 1 bundle of shingles
25 bundles weigh 1 ton
25 bundles or less the 10 yard is enough — its included ton covers it all; at 30 bundles and up, the 20 yard costs less
bundles

Your roofer talks in square feet? Divide by 32 to get bundles. The result is an estimate, but very close to real jobsites.

50 bundles → a 20 yard

50 bundles weigh 2 tons: exactly the tonnage included with the 20 yard. The size is ideal — nothing paid for nothing.

75 bundles + a big cleanout → a 40 yard

75 bundles weigh 3 tons. In a 40 yard, you have 1 ton left to empty the garage or basement at the same time — the rental works twice.

Conversion benchmarks provided by Megabac Environnement, August 21, 2026.

Where to place the dumpster during the work

A roof does not empty like a basement. Shingles come down the slope, usually on one side of the house, and they come down fast. So the spot gets decided before the first bundle is torn off: moving the box mid-job means a truck trip.

The driveway itself is protected: every Megabac dumpster arrives with PROTEC-O-SOL planks, included, which spread the load over asphalt, concrete or pavers. Our drivers' extra tip: lay four flattened cardboard boxes or a thin sheet of plywood on the spot, so the steel never touches the surface directly. Tell us on the phone what your driveway is made of — the driver arrives prepared.

On the street rather than in the driveway? On your own property, no permit; on the street, your city's rule applies. The permit checker gives it municipality by municipality, and the list of cities we serve shows how far the trucks go.

How many days for a roof

Every rental includes 7 days for a homeowner, 15 for a contractor. A residential roof is often redone in two or three days: the box is full well before the included days run out. That is exactly the job Libération Express rewards.

  1. Your dumpster is delivered The 48-hour clock starts at delivery — not at the pick-up request.
  2. You free it up within 48 hours of delivery Shingles down, dumpster loaded, pick-up requested by call or text.
  3. You get a $50 credit Applied straight to your credit card — deducted from any extras, refunded in full if there are none.

Past 48 hours after delivery, the promo no longer applies — your rental simply continues, without the credit.

The day counter, for its part, stops the moment you authorize pick-up by phone: even if the truck comes a few days later, those days are not billed to you. And if the job slips — rain, rotten decking found once the shingles are off — say so: the duration extends by agreement. Libération Express, in detail.

Offer valid during the high season (March to October).

What leaves with the shingles

Shingles travel in the mixed dry materials dumpster. It is not a single-material dumpster like concrete, brick, asphalt or soil: everything the re-roofing takes off can go in, and the rest of the house too. These materials require a special disposal stream: sorting fees apply if they end up in the box. Not sure about something? Name it during the call — the answer is immediate.

In the same box as the shingles

  • The old cladding and membranes torn off with the shingles
  • The plywood and rotten decking you find once the shingles are off
  • Fascia, soffits and gutters replaced at the same time
  • Wood, drywall, metal, insulation, plastic: the mixed dumpster takes them together
  • Furniture and the garage cleanout — the box is already in the driveway

What goes in no dumpster at all

  • Oil, paint, solvents
  • Propane tanks, chemicals, batteries
  • Tires

For roofing contractors

A roofer does not rent one dumpster: he keeps several in rotation. The rental includes 15 days for contractors instead of 7 — enough to absorb a rained-out week without going back to the phone.

The rest of the contractor conditions — profiles, sizes, how to book — live on the Contractors page. For a homeowner having a roof redone, everything is on the Homeowners page.

Free quote

It takes a minute — and the team gets back to you quickly.

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What happens next: we email you the quote: recommended size, exact price and possible date. Have your bundle count handy — or the roof area: it is the one thing we cannot guess.

Questions from roofing jobs

How many bundles of shingles fit in a 20 yard?

Up to 175 bundles, which is 7 tons of shingles. That is what fits in the box — not to be confused with the tonnage included in the rental: 2 tons on the 20 yard, 4 tons on the 40. Shingles therefore reach the included tonnage long before they fill the dumpster. The two benchmarks that do all the work: 1 bundle covers 32 sq ft, and 25 bundles weigh 1 ton. And for small roofs: up to 25 bundles, the 10 yard is enough — its included ton covers it all, and a 20 yard would leave half empty. At 30 bundles and up, the 20 yard's included tonnage makes it the cheaper rental.

Do shingles go in a mixed dumpster?

Yes. Shingles travel in the mixed dry materials dumpster, along with wood, drywall, metal, insulation and furniture. It is not a single-material dumpster like concrete, brick, asphalt or soil: the old decking, the fascia, the gutters and the garage cleanout can all leave in the same rental.

Do I need a permit for a roofing dumpster?

On your own property, no. On the street, the answer depends on your city — each has its own rules, delays and costs, and some also require a permit for the work itself. The permit checker gives the rule municipality by municipality, in two lines.

How long can I keep the dumpster?

7 days for a homeowner, 15 for a contractor — and when a roofer books for a client's address, the homeowner's 7 days apply, which is plenty: the roof itself takes one to three days. The counter stops as soon as you authorize pick-up by phone: even if the truck comes a few days later, those days are not billed to you. In the other direction, a dumpster freed up within 48 hours of delivery earns the Libération Express credit of $50, during the March-to-October high season.

What happens if I go over the included tonnage?

The excess is billed from the disposal centre's weigh ticket, never rounded up to the full ton: it is the real weight of your load. For a roof the math is done in advance — 25 bundles per ton — and we look at it with you on the phone, to see which size leaves without an overload.

Do you deliver on weekends?

Deliveries and pick-ups run Monday to Friday, generally between 6:30 a.m. and 3 p.m., with no guaranteed time. The line still answers Saturday and Sunday, 8 a.m. to 5 p.m., for information and bookings: a booking taken on a Saturday goes out the next business day.

Roof coming off soon?

Give us the bundle count — or the roof area — and we confirm the size, the date and the exact price. Deliveries Monday to Friday; the line answers seven days a week.