What Size Dumpster Do I Need? | McDonough, GA Guide

Every call starts the same way: "I don't know, how big of a mess do I have?" Fair question — and it's the one that determines whether you're happy with your rental or calling us back on day two asking for a swap. Get the size right and the job goes smoothly: one delivery, one pickup, no surprise fees. Get it wrong and you're either paying for empty air or paying overage charges because the driver had to leave a full container behind.

Here's the sizing guide we actually use on the phone, with real dimensions, real project comparisons, and the weight math nobody explains until the invoice shows up.

The Quick Answer: Match the Job to the Yard

"Yard" refers to cubic yards of capacity, not the footprint of the container. A 20 yard dumpster isn't twice the size of a 10 yard on the ground — it's usually the same length and width with a taller wall, which matters when you're trying to fit one in a driveway or under a carport.

Dimensions vary a few inches by manufacturer, but that table is close enough to plan around. Now let's walk through each size with the kind of jobs that actually fill them.

10 Yard Dumpster

This is the container people underestimate right up until they've filled it. At roughly 12 by 8 feet with a 3.5-foot wall, a 10 yard fits in a single driveway parking spot and doesn't need much clearance to swing in.

What actually fills one: clearing out a single garage bay, tearing out a bathroom down to the studs (tub, vanity, tile, drywall — that combination gets heavy fast), pulling up 200-300 square feet of old carpet and pad, or a weekend of yard cleanup after taking down a couple of trees. We also see a lot of these go out for small roof jobs — a single-layer tear-off on a garage or a shed, not a full house.

A 10 yard is the one we push people toward for anything with a lot of concrete, dirt, or shingles and not much volume. Because those materials are dense, you'll hit the weight limit long before you fill the box — more on that below.

15 Yard Dumpster

The 15 yard is the size that gets skipped over most, and that's usually a mistake. It's the same footprint as a 10 yard with an extra half-foot of wall height, so it fits the same tight spots but swallows about 50% more volume without taking up any more driveway.

Good matches: a garage cleanout where you're also pulling out old shelving and a workbench, a full carpet-and-pad replacement for a mid-size home, a small deck teardown (12x16 or so), or a kitchen refresh that's cabinets and countertops but not full demo to the studs. If a 10 yard feels like it might be "just a little too small," the 15 is usually the right call rather than jumping straight to a 20.

20 Yard Dumpster

This is the size we deliver most often, and for most residential projects it's the right first guess. At about 16 by 8 feet with a taller wall than the 10 or 15, it holds roughly eight pickup truck loads.

Typical jobs: a full kitchen remodel (cabinets, countertops, flooring, drywall), gutting two bathrooms, decluttering a house before it goes on the market, or a roof tear-off on an average 2,000 to 2,500 square foot home with a single layer of shingles. If you're doing a whole-house declutter ahead of a move or an estate cleanout and it's more than "a few rooms," this is usually where you land.

One thing to flag: shingles are heavy. A 20 yard filled entirely with a single-layer tear-off on a house that size will often hit its weight limit before the box is visually full — same story as the 10 yard, just at a bigger scale.

30 Yard Dumpster

At 22 feet long, the 30 yard needs real room — a long driveway or a construction site with clear access, not a tight urban lot. The extra length is where the volume comes from; the height only goes up about a foot and a half from the 20 yard.

This is the size for new home construction debris, a room addition that involves framing and full demo, a large deck or fence removal project, or a roof tear-off on a bigger home or one with two layers of shingles being removed. Contractors doing whole-home renovations typically order a 30 yard as their primary container and swap it out as it fills, rather than trying to make a 20 yard stretch across a multi-week job.

40 Yard Dumpster

The largest standard size, at 22 feet long and 8 feet of wall height. This is commercial-scale volume — think full building demolition debris, large commercial cleanouts, or a complete gut-and-rebuild on a larger home where multiple trades are generating waste simultaneously.

Because of the height, a 40 yard isn't the right call for dense material like concrete, brick, or dirt — you'll max out the weight limit around one-third full and pay for volume you never used. It's built for bulky, lighter debris: framing lumber, drywall, insulation, furniture, and general demolition waste where volume is the constraint, not weight.

How to Estimate What You Actually Need

Skip the guesswork with a simple three-step gut check:

• Measure the room or area. A 10x12 room gutted to the studs (drywall, flooring, trim, maybe a closet) is a solid 10-15 yard job. Two or three rooms starts pushing you to 20.
• Think in truck loads, not square feet. If you're picturing four full pickup truck loads, that's a 10. Eight loads, that's a 20. It's a rougher measure than a tape measure, but it maps closely to how these containers actually get filled.
• Separate volume jobs from weight jobs. Furniture, drywall, and general household junk are volume problems — they fill the box before they hit the weight limit. Concrete, dirt, brick, tile, and shingles are weight problems — they hit the tonnage cap while the box still looks half-empty. Know which kind of job you have before you pick a size.

When a job sits right on the line between two sizes, we generally recommend sizing up one step. The price difference between a 15 and a 20 is a lot smaller than the cost of a second delivery and pickup because the first container filled early.

Weight Limits: The Part the Size Chart Doesn't Tell You

Every dumpster rental comes with a weight limit built into the price, usually expressed in tons. Go over it and you'll owe a per-ton overage charge on top of the base rental — that's standard across the industry, not a hidden gotcha, but it catches people who didn't ask about it up front.

A few things worth knowing before you load:

• Weight limits are separate from size. A 30 yard doesn't automatically come with a higher weight allowance than a 20 yard — it depends on the container and the agreement. Always confirm the ton limit when you book, not just the yardage.
• Wet debris weighs more. A pile of yard waste or drywall that sat out in the rain for a week can weigh noticeably more than the same pile dry. If you can, keep the container's contents covered between loads on a rainy stretch.
• Dense materials are the usual culprit for overages, not household junk. Concrete, dirt, brick, plaster, and roofing shingles are where weight limits get blown, because a small volume of those materials weighs as much as a truckload of furniture.
• Ask what's included before you book, not after the truck picks up. A flat rate that states the tonnage up front means no surprises on the back end — that's how we quote every job.

Common Mistakes: Oversizing and Undersizing

Undersizing is the more common call we get. It usually happens on demo jobs — people picture the finished pile of debris, not the volume it takes up once it's broken apart and loosely stacked in a container. A gutted bathroom looks like "not much" sitting in a pile on the floor, but tub, vanity, tile, and drywall loosely thrown into a dumpster take up a lot more air than they did stacked on the ground. When in doubt, round up.

Oversizing costs less per incident but adds up over multiple jobs — mostly it's paying for a 30 yard when a 20 would've done the job, either out of caution or because "bigger just seemed safer." It also creates a placement problem: a 30 yard needs real clearance, and cramming one into a spot better suited to a 15 or 20 makes delivery and pickup harder than it needs to be.

The other mistake we see less often but that costs the most: ordering by size alone and ignoring weight. Someone books a 20 yard for a concrete driveway tear-out because "20 sounds like plenty," fills less than half the box, and gets hit with a weight overage because concrete is roughly 150 pounds per cubic foot. For dense material jobs, ask us about weight limits before you ask about yardage — it's the number that actually matters.

A Local Note for Henry County Projects

Driveways and lots around McDonough run the full range — plenty of newer subdivisions off GA-20 and GA-155 with wide concrete driveways that handle a 30 yard without issue, and older streets closer to the downtown square with tighter setbacks where a 10 or 15 yard is the realistic fit. If you're not sure a bigger container will clear your driveway, gate, or overhead wires, tell us the layout when you call and we'll size it based on what will actually fit, not just what the job would ideally use.

If you're still between two sizes after reading this, call us at (470) 574-5931 and describe the job — what's coming out, roughly how big the space is, and where the container needs to sit. That's usually enough for us to get you the right size on the first delivery.