40-Yard Roll-Off Dumpster: Major Construction & Demo

The 40 yard is the largest roll-off we operate. It’s not the right answer just because a project is big. Heavy debris fills it on weight long before height. But for the right job — high-volume, lightweight, run-it-for-weeks work — nothing else makes sense.

Here’s when to call for a 40 and when to talk yourself out of it.

The dimensions

Our 40 yard roll-off:

• 22 ft long
• 7.5 ft wide
• 8 ft tall on the sides

Same length and width as the 30 yard. The difference is height — two extra feet of vertical capacity, which gives you a third more volume in the same footprint. The 40 looks dramatically bigger because it is, vertically, but it doesn’t take any more driveway space than the 30.

What 40 cubic yards of debris looks like

Equivalents that mean something:

• About 12 to 14 pickup-truck loads of mixed debris
• Around 240 contractor bags
• A whole-home demo for an averagely-sized house
• A full commercial tenant turnover for a medium suite
• Roughly 6,000 sq ft of light residential framing/finish offcuts

It’s a lot of space. The 40 holds more than three times what a 15 yard does, in roughly twice the physical footprint. That’s its appeal: when a project is genuinely high-volume, one 40 is far less hassle than swapping multiple smaller containers.

Where the 40 yard earns it

Whole-home demolition. Tearing a house to the foundation. Mixed debris stream — drywall, framing lumber, finishes, insulation, packaging — averages out to a manageable weight per cubic yard.

Large new construction. New builds beyond a few thousand square feet generate steady offcut and packaging debris. A 40 sits on site for the full project and absorbs everything.

Industrial and warehouse cleanouts. Manufacturing facility shutdowns, warehouse cleanouts, business closures. The volume is high but the materials (cardboard, packaging, scrap, light fixtures) aren’t dense.

Full property clearing. Cleaning up a property after a long-term resident leaves. Decades of accumulated stuff, sheds, outbuildings — the kind of work that overlaps with hoarder cleanouts at scale. The 40 saves multiple haul trips.

Major commercial demolition. Restaurant gutting, retail tenant removal, office floor demolition. These projects produce big bursts of debris and benefit from one large container that doesn’t need attention.

Storm or fire cleanup at scale. When a building section is destroyed or a property has significant damage, the 40 lets a contractor work through the cleanup without slowing down for hauls.

Where the 40 is the wrong call

Be straight with yourself. The 40 is not the right size for:

• Any single-family residential remodel. Even a whole-home remodel rarely fills a 40 — the 30 is correct.
• Heavy-debris projects. Concrete tear-out, brick demo, dirt removal, asphalt — you will hit weight before volume. A 15 or 30 hauled multiple times beats a half-full 40.
• Roofing tear-offs alone. Shingles are heavy. A 40 yard of shingles is way over weight.
• Anywhere with overhead clearance issues. Low branches, low wires, gates, drive-thrus — the 40’s height creates problems other sizes don’t.

If you’re not sure, the conversation usually goes one of two ways: a 30 with a possible swap, or a 40 if the volume is genuinely high and the debris is mixed. We’re happy to walk through it.

Loading the 40 yard

You’re not throwing anything over an 8 ft wall. All loading is through the swing door at the back of the box. That changes the workflow:

Build the load front-to-back. Long flat items go in first, sliding all the way to the front. Bulky items next, working backward. Voids and bags last, near the door.

Watch the door clearance. When the back is loaded heavy, the swing door becomes harder to operate. Keep the back third of the box accessible until late in the job.

Plan the cubic-yard math, not just the floor area. It’s easy to make the floor look full and forget there’s 8 ft of empty space above. Stack thoughtfully — it’s the only way to actually use the 40’s volume.

Hit the line, not over. As with any size, we cannot legally haul a load that’s over the rim. The 40’s fill line is below the top edge of the wall.

The placement conversation

Because of its height, the 40 is the size where we ask the most placement questions before delivery. Things we check:

• Overhead clearance. Branches, wires, eaves, gates, anything within 14 ft vertical from the ground level at the placement spot.
• Driveway slope. Steep slopes load unevenly and can be unsafe to load through the swing door.
• Surface. We always set boards down, but the 40 loaded weighs more than a 15 — so the surface needs to be sound.
• Truck swing path. The truck needs the room to pick up and lower a 40 cleanly. We’ll often want to do a quick site walk by photo or video before delivery.

If you’re working on a major project across Boerne and the Hill Country, Mount Vernon, or anywhere in our service area, and you think the 40 might be the right tool — call. Five minutes of project description usually answers the question, and if the 30 is actually correct, we’ll tell you that.

Give us a holler at (903) 806-4181 or book online and we’ll get you sorted.