Roll-Off Bins: What’s the Difference and Which Size Do You Need?

Ken’s Salvage offers one main type of rental bins: roll-offs. They are available in different sizes ranging from 15 to 40 yards, and are suited to different jobs. While you might think the only difference is how much you can fit in each one, it’s important to note some key reasons why you might want to get a different size than you’re thinking of.

The size you pick also affects where you can place it, how long your project can realistically take, whether you’ll need multiple pickups, and ultimately, how much you’ll spend. Understanding the real differences between sizes means you’ll rent the right bin the first time—instead of either overpaying for space you don’t need or running out of room halfway through.

What Is a Roll-Off Bin?

A roll-off bin is the large, open-top rectangular container most people picture when they think of a dumpster. It’s called a “roll-off” because of how it’s delivered: the truck tilts its bed and rolls the bin off onto the ground at your location.

Roll-offs are designed for larger volumes of waste and are available in Ken’s 15, 20, 30, and 40 yard sizes. They’re the go-to choice for:

• New home construction and major renovations
• Commercial and industrial job sites
• Large-scale cleanouts and demolition
• Roofing and heavy material disposal

Because they’re delivered by tilting the truck bed, they need a fairly clear, flat surface to land on and a bit of room for the truck to maneuver.

Breaking Down the Bin Sizes: 15, 20, 30, and 40 Yard Roll-Offs

15-Yard Roll-Off

Best for: Small to medium residential projects, minor cleanouts, single-room renovations

The 15-yard is your compact option. Think of it as the right size for:

• Kitchen or bathroom renovations (not the whole house)
• Garage or basement cleanout
• Small deck removal
• Yard waste from seasonal cleanup
• Minor landscaping projects

Why pick this size: It’s easier to place in tighter driveways. You’re paying for less waste disposal overall, so if your project is modest, you’re not subsidizing capacity you won’t use. It’s also a good choice if you’re on a tighter timeline and prefer multiple smaller pickups over waiting to fill a huge bin.

The tradeoff: If your project turns out bigger than expected, you might need a second bin—which costs more than just renting the right size upfront.

20-Yard Roll-Off

Best for: Medium residential projects, whole-home renovations, moderate commercial work

The 20-yard is the middle ground and honestly, it’s what most homeowners end up choosing. It handles:

• Full kitchen and bathroom renovation together
• Whole-house cleanout or decluttering
• Roof replacement on a single-story home
• Basement renovation or finishing project
• Small commercial renovation or office cleanout

Why pick this size: It’s flexible. You get enough capacity that minor underestimation doesn’t leave you scrambling, but you’re not paying for a huge bin if your project is straightforward. It also fits in most residential driveways without requiring exceptional clearance.

The consideration: It’s the sweet spot in pricing per yard, so you get decent value without oversizing.

30-Yard Roll-Off

Best for: Large residential projects, substantial renovations, ongoing commercial jobs

The 30-yard is where you’re tackling serious work. Use this for:

• Full-house renovation or remodel
• Major roof replacement or extensive structural work
• Large-scale yard cleanup or tree removal
• Commercial renovation or demolition prep
• Extended projects where you need one bin for weeks

Why pick this size: If your project involves multiple rooms, structural changes, or heavy materials (roofing, flooring, lumber), a 30-yard prevents the frustration of filling a smaller bin halfway through. It’s also better for projects that stretch over time—you have one bin sitting there rather than coordinating multiple pickups.

The consideration: You’ll need a larger driveway space or possibly a parking lot. The truck needs more room to maneuver.

40-Yard Roll-Off

Best for: Full-scale demolition, major construction projects, large commercial work

The 40-yard is the heavy hitter. It’s for:

• Complete home demolition
• Major commercial or industrial projects
• Large-scale renovation with extensive structural removal
• Multi-unit residential work
• Projects generating consistent waste over several weeks

Why pick this size: You’re not making multiple trips or worrying about running out of space. For contractors and commercial clients, one large bin is often more efficient than managing several smaller ones. It’s the container that handles truly substantial jobs without constraints.

The consideration: This requires significant space. You likely need a commercial parking lot or large property. This bin is not suitable for typical residential driveways.

How to Choose

1. What’s the scope? Single room or whole house? Quick weekend project or multi-week job?
2. What are you throwing away? Heavy stuff like roofing or concrete? Lighter materials like drywall and wood? Volume varies drastically.
3. How much space do you have? Can the truck even get to your property? Is your driveway wide and flat enough?
4. What’s your timeline? Quick project = smaller bin. Extended work = larger bin saves coordination hassle.
5. Is this a one-time haul or ongoing? One big cleanout is different from construction waste accumulating over weeks.

Which One Should You Choose?

For most homeowners doing a renovation, cleanout, or yard project, the 15 yard is a great fit. It’s manageable, easy to place, and handles the majority of residential waste loads with ease.

If your project is larger, like a full roof replacement, a gut renovation, or ongoing construction waste, a roll-off in the 20, 30, or 40 yard range is the better call.

When in doubt, just describe your project to us and we’ll tell you exactly what we’d recommend… just honest advice from people who’ve been doing this since 1951.

Ready to get started? Call Ken’s Salvage at 905.680.2323. Same-day delivery available 6 days a week.