10-Yard vs. 20-Yard vs. 30/40-Yard: Which Dumpster Size Do I Need?

The most common sizing mistake we see — and we've done 16,000+ jobs since 2014 to know it — is people going one size up "to be safe." Bigger isn't safer. Bigger costs more, takes more driveway space, and creates a half-full bin you paid extra for. Right size beats safe size.

This post walks through what each of our four roll-off sizes actually fits, with real CT examples. If you're booking your first dumpster, this is the page to read before you call.

The four sizes — dimensions and weight

Size	Price	Length	Width	Height	Weight Included
10-yard	$447	12 ft	8 ft	3.5 ft	1,000 lbs
15-yard	$547	14 ft	8 ft	4.5 ft	2,000 lbs
20-yard	$647	16 ft	8 ft	4.5 ft	4,000 lbs
30/40-yard	$899	(two 20-yd bins)	—	—	6,000 lbs

All four prices include delivery, pickup, dumping, 7-day rental window, and the included weight allowance. No zone surcharges across our service area. Full pricing context lives on how pricing works.

10-yard at $447 — the small, dense bin

12 ft × 8 ft × 3.5 ft tall. 1,000 lbs of weight included. The smallest tier we run, and the most underused.

People skip the 10-yard because they assume it's "too small" — but for heavy, dense material it's often the right call. A 10-yard filled with concrete or dirt hits its 1,000-lb weight cap at maybe 1/3 full by volume. If you're hauling heavy debris, you'll fill the weight cap long before you run out of room. Going bigger doesn't help when weight is the constraint.

10-yard real-use examples:

• Single-bathroom gut remodel (tear out tub, tile, vanity, drywall)
• Small concrete or asphalt removal — driveway patch, walkway tear-up
• Dirt and sod removal — small landscape project
• Single-room clear-out (one bedroom, a small office)
• Tight-driveway constraint where a 15 or 20 won't fit

When to skip it: anything over about 6 cubic yards of light material. Drywall, framing scrap, and household junk fill the volume fast — you'll run out of room before the weight cap matters.

15-yard at $547 — the most-overlooked sweet spot

14 ft × 8 ft × 4.5 ft tall. 2,000 lbs included.

The 15-yard is what we recommend most often when customers describe a "kitchen reno" or "garage cleanout." It holds enough volume for the typical mid-size CT residential project, has enough weight headroom for mixed debris (drywall + cabinetry + flooring), and costs $100 less than the 20-yard.

15-yard real-use examples:

• Standard kitchen renovation (cabinets, countertops, appliances, flooring)
• Full garage cleanout — including the years-old paint cans you sorted out for hazardous waste day
• Single-room demolition — taking out a wall, redoing a den
• Mid-size landscape project — tree removal stumps, soil, mulch debris
• Bathroom + bedroom combo gut

When to skip it: if you're not sure between 15 and 10, you probably want the 15. If you're not sure between 15 and 20 — and the project is light material — go 15. If it's a contractor's whole-house gut or a roof tear-off, jump to 20.

20-yard at $647 — the most-popular size

16 ft × 8 ft × 4.5 ft tall. 4,000 lbs included.

The 20-yard is our most-booked size. It's what contractors call us for first, and it's right for any project that's bigger than "a room or two" but not yet "tear down the whole structure." Single-layer roof tear-offs up to about 2,500 sq ft fit a 20-yard's weight allowance comfortably (35-45 squares of asphalt shingles ≈ 3,500-4,000 lbs).

20-yard real-use examples:

• Whole-house decluttering — estate cleanout, downsizing
• Single-layer roof tear-off, sub-2,500 sq ft, single asphalt layer
• Multi-room renovation — kitchen + bath, or two adjacent rooms
• Mid-size addition build-out (framing waste, drywall scrap)
• Contractor day-runs where you don't yet know the final volume

When to skip it: if you have heavy debris (concrete, brick, tile) — the weight ceiling will get you long before the volume does. Drop to a 10 or 15 and budget for weight overage. If you have a two-story tear-off or a really big addition — jump to 30/40.

30/40-yard at $899 — two 20-yard bins, swap or split

This tier is delivered as two 20-yard bins rather than a single 30 or 40-yard. Same ~30-40 cubic yard total capacity, same 6,000-lb total weight allowance, but with three operational advantages:

1. Easier driveway fit — a single 30 or 40-yard bin is a big footprint. Two 20s fit driveways that won't accept a single 30.
2. Split across two locations — multi-property estate cleanout? Both bins go to different addresses, same price.
3. Swap-out flexibility — fill one, we swap it for a fresh empty mid-project. You don't have to pre-guess the final volume.

The 30/40 tier is what big residential demos, contractor jobs, and multi-day renovations look like.

30/40-yard real-use examples:

• Full additions or substantial renovation framing
• Two-layer roof tear-offs (the second layer doubles the weight math)
• Contractor jobs where you'll swap mid-project rather than pre-size
• Multi-property cleanouts — split the bins across two addresses
• Long landscape or excavation projects with mixed debris

When to skip it: anything that fits a 20-yard cleanly. The 30/40 is meaningful capacity — don't pay for it if you don't need it.

The "pick by job type" decision matrix

For the most-common CT projects we run:

Project	Recommended Size	Why
Single-bath gut	10-yard	Tight volume, mixed debris
Standard kitchen reno	15-yard	Most-common kitchen call
Large custom kitchen	20-yard	Cabinetry + flooring + drywall volume
Single-room demo	15-yard	One-room scope, mixed debris
Whole-house gut	20-yard	Volume-driven, sized for crew speed
Single-layer roof, under 2,500 sq ft	20-yard	Weight-cap-aware
Two-layer roof, any size	30/40-yard	Second layer doubles weight
Concrete driveway tear-up	10-yard	Weight-constrained — heavy material
Tile and grout tear-out	10-yard	Same — heavy material
Garage cleanout	15-yard	Years of accumulated mixed debris
Estate cleanout (full house)	20-yard	Volume-driven; sometimes 30/40
Small landscape	10-yard	Soil + sod fills weight
Mid-size landscape	15-yard	Volume-driven
Full addition or major reno	30/40-yard	Two-bin flexibility

For projects that don't fit these patterns — call. (203) 219-8855, {{}we answer live Mon–Fri 8 AM – 4 PM. Describing the project beats guessing the size.

Weight ceiling: the thing nobody mentions until it matters

Every dumpster has a weight ceiling tied to its size. Over the ceiling = $0.10/lb overage at the transfer station, passed through directly to your invoice (we don't mark it up).

Real weight math, for materials commonly hauled:

Material	Approx weight/cubic yard
Concrete	4,050 lbs
Dirt/soil	2,200-2,700 lbs
Asphalt	4,000 lbs
Asphalt shingles	240-280 lbs
Mixed construction debris	400-600 lbs
Drywall	500 lbs
Wood/lumber	200-300 lbs
Household junk	200-400 lbs
Mattresses (each, count separately)	50-100 lbs

Run the math. A 10-yard with 1,000 lbs included: that's about 4 cubic yards of mixed construction debris, OR about 0.5 cubic yards of concrete. A 20-yard with 4,000 lbs included: about 8-10 cubic yards of mixed debris, OR 1 cubic yard of concrete.

For roof tear-offs specifically — our roofer page has the per-square shingle weight math. Quick version: 35-40 squares of single-layer shingles fits a 20-yard comfortably; two-layer tear-offs (asphalt-over-asphalt) double the weight and push you to 30/40.

"I don't know what size — what do I do?"

Call. (203) 219-8855. The phone call works because we've done this 16,000 times — describing the project (size of space, type of debris, single vs. multi-session) gives us 90% of what we need to size you right.

If you'd rather not call, the instant dumpster quote tool walks through a few sizing questions and books the bin. The cutoff for same-day delivery is 11 AM.

For commercial / contractor work, the contractor page walks through sizing for active job sites with swap-out logic. For roofers specifically, the roofer page handles the squares-to-weight math. For demolition contractors, the demo-contractor page covers mixed-debris and heavy-load sizing.

The best dumpster is the right-sized one. Skip the "bigger to be safe" reflex — it costs you money and takes up driveway you'd rather have back.