How to Size a Dumpster for a Roofing Tear-Off

If you're re-roofing a home in Bel Air, sizing the dumpster is a little different from every other project — and getting it wrong is expensive. The counterintuitive truth is that for roofing, you often want a smaller container than you'd expect, because asphalt shingles are remarkably heavy.

Roofing is measured in "squares"

Roofers measure roofs in squares, where one square equals 100 square feet of roof area. A typical single-story home might have 15 to 30 squares. This matters because a single square of asphalt shingles weighs roughly 250 to 400 pounds — and that's before you account for multiple layers, felt, and flashing.

Do the math on a 20-square roof and you're looking at a couple of tons of debris from shingles alone. Now you can see why weight, not volume, is the deciding factor.

Recommended sizes by roof

• Up to ~15 squares, single layer: a 10 yard is often enough.
• 15 to 25 squares, single layer: a 15 yard is the common choice.
• Larger roofs or multiple layers: you may need a 20 yard or a swap — but we'll calculate the weight so you don't exceed the limit.

Notice there's no 30 or 40 yard on this list. Filling a container that large with shingles would put it far over safe hauling weight long before it's full. That's not a size you want for roofing.

Why smaller saves you money

Every container has a weight allowance in its flat rate. Order a big dumpster "to be safe" and load it with shingles, and you'll blow through that allowance and rack up overage charges — or end up with a container too heavy to legally haul. A right-sized bin keeps you under the limit and keeps your bill predictable. This is exactly the kind of local know-how we bring to every roofing rental.

Loading tips for roofers and DIYers

• Keep the load level — don't heap shingles above the rim.
• Break down large sections so they lie flat and pack efficiently.
• Keep the tear-off clean; mixing in other debris complicates disposal.
• For multi-day jobs, ask us about swaps to keep the site clear.

Tell us your square count

The easiest way to size a roofing dumpster is to tell us the roof's approximate square footage and how many layers you're tearing off. We'll do the weight math and recommend the container that fits your debris without tipping over the limit. Call before your tear-off and we'll have it on your driveway when the crew arrives.

Working on a project in Bel Air or Harford County? Call (443) 356-4414 and we'll help you choose the right dumpster size and give you a flat, all-in quote — delivery, pickup, and disposal included.