Dumpster size guide
18 Yard Dumpster: A Complete Guide to Choosing the Right Size for Your Project
By Ultimate Dumpsters · Updated
An 18 yard dumpster is what a lot of people picture for a big remodel. 18 yard containers are hard to find. A few areas have them, but they are rare, so they are not on our standard price list (10, 15, 20, 30 and 40 yard boxes).
Here is the honest answer up front. Most people searching for an 18 yard dumpster are best served by our 20 yard box. This guide shows why, with real prices from our live price list.
Why Dumpster Size Actually Matters
Too small means paying for a second haul; too big means paying for air. Size also sets the included tons, and weight over that is billed per ton.
People who search for an 18 yard usually have a whole-floor job: a full kitchen and bath remodel, a house-wide flooring swap, a deck coming down, a parent's home being cleared out. That is more than a 15 can hold, and a 20 is the next real box up.
What size dumpster do I need? Start from the job. Use the chart below, or try our dumpster size calculator and weight estimator.
18 Yard Dumpster Size Chart: From Smallest to Largest
The boxes we rent plus the in-between sizes people search for. Tap any chip to jump to it.
Small · 10 to 12 yd
Large · 20 to 25 yd
Biggest · 30 to 40 yd
The Most Common Dumpster Sizes and What They're Best For
Prices are typical all-in ranges from our live price list (October 2026): delivery, 7 days, pickup and disposal up to the included tons.
10 Yard Dumpster
Smallest · light householdOur smallest roll-off, about 3 pickup truck loads. It fits most driveways, and the 3.5 foot walls make it the easiest box to load by hand.
Compared with a 18 yard it holds 8 fewer yards, so it only makes sense when the job is truly one room.
- Dimensions
- 12' x 8' x 3.5'
- Tons included
- 1 ton
- Typical price
- $495 to $650
Not for: Whole-house cleanouts or a full kitchen with cabinets.
15 Yard Dumpster
Medium · remodelsAbout 5 pickup truck loads. The walls stay low at 4.5 feet, so it loads like a 10 but holds half again as much.
It is the size we recommend most for single-room remodels and basement or garage cleanouts, with a median price of $625 on our live price list.
- Dimensions
- 16' x 7.5' x 4.5'
- Tons included
- 1.5 tons
- Typical price
- $550 to $750
Not for: Whole-house cleanouts. Clean concrete or dirt fits, priced as a heavy load.
18 Yard Dumpster: What to Order Instead
Searched size · orders as a 20 yardAn 18 yard is not on our standard price list, so we do not quote one online. Most of the time we send a 20 yard. It holds about two more yards than an 18, keeps the same 4.5 foot walls as our 15, and includes 2 tons.
The 20 yard is the most popular size for exactly this kind of job. It is long rather than tall, so you can still walk debris in or toss it over the side without a ladder. If your load is mostly heavy material, read the heavy loads section first.
20 yard: 22' x 7.5' x 4.5', 2 tons included, typically $625 to $895
Need an exact 18 yard? Call (866) 858-3867 and we'll check availability for your ZIP.
20 Yard Dumpster
Closest to a 18 yard · most popularAbout 6 pickup truck loads. It is long instead of tall, which keeps loading easy while doubling the room of a 10. This is the box we usually send for an 18 yard request.
It handles whole-house cleanouts, large remodels and most roof tear-offs, with a median price of $695.
- Dimensions
- 22' x 7.5' x 4.5'
- Tons included
- 2 tons
- Typical price
- $625 to $895
Not for: Concrete or dirt mixed with junk. Clean loads are priced as a heavy load.
30 Yard Dumpster
Contractor · bulky loadsAbout 9 pickup truck loads. Same footprint as the 20, but 6 foot walls add 10 yards of room for bulky, light debris.
Contractors use it for new construction and gut renovations; homeowners use it for big estate cleanouts.
- Dimensions
- 22' x 7.5' x 6'
- Tons included
- 3 tons
- Typical price
- $750 to $995
Not for: Roofing, concrete or dirt. Those stay in a 10, 15 or 20.
40 Yard Dumpster
Largest · commercialOur biggest box, about 12 pickup truck loads. The 8 foot walls mean loading through the rear door or with equipment.
Built for commercial cleanouts and large construction. For a 18 yard job it is usually more box than you need.
- Dimensions
- 22' x 7.5' x 8'
- Tons included
- 4 tons
- Typical price
- $850 to $1,240
Not for: Residential driveways, roofing, concrete or dirt.
The Other In-Between Sizes: 12 and 25 Yard
Searched sizes · not on our standard listNeither is on our standard price list either: 18 and 25 yard boxes are rarer than 12s. A 12 yard usually orders as a 15, an 18 as a 20, and a 25 as a 20 or a 30 depending on the load.
Read the full guides for the 12 yard dumpster and 25 yard dumpster, or compare every real size side by side on our size comparison page.
Construction Debris Dumpster
Mixed debris · sized by volumeDrywall, lumber, flooring and cabinets go in a regular roll-off sized by volume. Contractors mostly order the 20 or 30, with swaps on longer jobs.
Weight still counts: anything over the included tons is billed at typically $150 to $195 per ton.
Heavy Loads: Concrete, Brick and Dirt
Same box · heavy-load priceClean concrete, brick, asphalt and dirt go in the same 10, 15 or 20 yard box, priced as a heavy load. Never a 30 or 40: a big box of rubble would weigh more than the truck can legally carry. It is a flat price with tons included equal to the yards, loaded to the fill line.
More than 20 tons means more than one 20 yard. Use the concrete calculator to estimate the weight.
Roofing Dumpster for Shingle Tear-Offs
Construction box · per-ton overageShingles go in a regular 10, 15 or 20 yard construction box sized by volume: about 10 squares for a 10, 15 for a 15 and 25 for a 20. Bigger roofs get more than one 20. Roofing never goes in a 30 or 40, and it is not priced as a heavy load.
Weight over the included tons is billed per ton. The shingle calculator estimates both.
Tips for Renting the Right Dumpster
- Measure the driveway first. A 20 yard is 22 feet long, plus room for the truck.
- Choose the 20 over the 15 for anything past two rooms. It is the closest box to an 18.
- Keep concrete, brick and dirt apart from household junk. Loaded clean, they go in a 10, 15 or 20 at a flat heavy-load price.
- Plan the weight, not just the space. A 20 includes 2 tons, and drywall adds up fast.
Weight Limits, Permits and Placement
Weight limits and overage. Every box includes a set weight: 1 ton in a 10, 1.5 in a 15, 2 in a 20, 3 in a 30 and 4 in a 40. The landfill weighs the load, and anything over is billed per ton, typically $150 to $195. Extra days past the included 7 typically run $35 to $50 a day. See every size on our roll-off price list.
Do I need a permit? On your own driveway or lot, usually no. On a public street, many cities require one. Tell us when you order and we will walk you through it for your town.
Where does it go? Plan for the box length plus roughly 60 feet of straight clearance for the truck to set it down and pick it up, and lay plywood under the rails to protect a newer driveway. Our dispatch team confirms the delivery window and spot. Check your city page: Houston, Chicago, Phoenix, Philadelphia, Atlanta, Charlotte, Columbus, Orlando.
Order Your Dumpster from Ultimate Dumpsters
15+ years of experience, Ultimate Dumpsters since 2019, serving 40,000+ ZIP codes. For a 18 yard job, order the 20 yard; the 20 yard typically runs $625 to $895 all-in.
See the real 20 yard price for your ZIP