Quick Answer
- ✅ Small deck (under 200 sq ft): 10-yard dumpster ($260–$400) is usually enough
- ✅ Most residential decks (200–400 sq ft): 15-yard ($310–$450) is the right call
- ✅ Large or multi-level deck: 20-yard ($360–$530) if you have concrete footings
- ⚠️ Concrete footings usually have a separate rate — call your hauler before booking
- ⚠️ Pre-2003 pressure-treated wood (CCA) may not be accepted — ask first
- ⏱️ 7-day rental is plenty for most deck demolition projects
Dumpster Size by Deck Size
Deck debris is largely lumber — bulky but not as heavy as tile or concrete. The table below assumes standard pressure-treated or composite decking without concrete footings.
| Dumpster Size | Deck Size | Examples | Est. Weight | Avg. Cost |
|---|---|---|---|---|
| 10 Yard | Up to ~200 sq ft | Small attached deck, platform deck (no concrete) | ~1–2 tons | $260 – $400 |
| 15 Yard | 200–400 sq ft | Mid-size deck with railings, stairs, and some lumber | ~2–3 tons | $310 – $450 |
| 20 Yard | 400–600 sq ft | Large deck, two-level structure, or includes concrete | ~3–5 tons | $360 – $530 |
| 30 Yard | 600+ sq ft | Commercial deck, multi-story structure, or full backyard demo | 5–8 tons | $430 – $620 |
Prices are national averages for 2026. Add 10–20% for concrete footing disposal. Always get a local quote.
Handling Concrete Footings
Concrete deck footings are the wildcard in every deck removal project. Unlike lumber, concrete is extremely dense — a single 10" diameter footing that goes 36" deep weighs roughly 150–200 lbs. A deck with eight footings can add 1,200–1,600 lbs before you've touched a board.
You have three options for footing disposal:
1. Add to dumpster (mixed load)
Accepted by most haulers, but priced at the mixed debris rate. Convenient if you're renting anyway. Verify with your hauler first.
2. Rent a concrete-only dumpster
Some haulers offer "clean fill" rates for concrete-only loads — significantly cheaper per ton. Best option if you have multiple large footings.
3. Haul to a C&D facility yourself
Concrete is accepted at most construction and demolition waste facilities for $50–$100/ton. Worth it if you have a truck and want to avoid hauler fees.
Deck Demo 101: What Actually Generates the Most Debris
Most deck removal projects produce more debris than homeowners expect. Here's what typically makes up the load:
- Decking boards: The surface boards (2x6 or composite planks) are the highest-volume item. They're long and bulky, not particularly heavy, but they take up a lot of space in the container.
- Framing (joists, beams, ledger board): The structural members are the heaviest wood component. 2x8 and 2x10 joists, doubled-up beams — these add weight quickly.
- Railing system: Balusters, posts, and rails are lightweight individually but add up to a surprising volume when disassembled.
- Stairs: If the deck has stairs, the stringers are some of the chunkiest lumber on the project. Plan extra space for stairs.
- Hardware: Joist hangers, lag screws, post bases, and carriage bolts are negligible in weight but generate trash volume.
What Can You Throw in the Dumpster?
✅ Generally Accepted
- •Pressure-treated lumber (most haulers accept it)
- •Cedar, redwood, pine, and other wood decking
- •Composite decking boards (Trex, TimberTech, etc.)
- •Railing systems (aluminum, vinyl, wood)
- •Deck hardware (screws, joist hangers, brackets)
- •Concrete footings (call hauler first — separate rate)
- •Stairs, stringers, and structural members
- •Pergola and lattice structures
- •Siding or trim removed during demo
🚫 Know Before You Load
- •Old-growth wood with heavy lead paint (may require hazmat disposal)
- •Treated wood with CCA (chromated copper arsenate) — older decks pre-2003
- •Asbestos-containing transite panels (fiber cement siding from older structures)
- •Paint cans, solvents, or deck sealers
- •Propane tanks from outdoor grills
5 Tips for Filling a Deck Removal Dumpster Efficiently
Cut boards to length before loading
Long 16-ft boards loaded haphazardly waste more space than anything else. Cut to 4–6 ft sections with a circular saw — you'll fit significantly more in the container.
Stack, don't pile
Lay boards flat in organized stacks rather than tossing them in. You'll use 30–40% more of the container's volume.
Load joists and beams first
Heavy structural members go on the bottom. Lighter decking boards on top. This keeps the load stable and prevents crushing.
Keep hardware separate
A coffee can of screws and joist hangers won't fill the dumpster, but it will fall through boards and scatter. Bag all hardware.
Don't wait for day two
Haul debris to the dumpster as you work, not at the end. End-of-day hauls are exhausting and less efficient than continuous loading.
Frequently Asked Questions
What size dumpster do I need for a deck removal?
A 15-yard dumpster is the sweet spot for most residential deck removals (200–400 sq ft). It holds a substantial amount of lumber, railings, and framing without going oversized. A 10-yard works for small decks under 200 sq ft. If your deck is large or has concrete footings you're disposing of, step up to a 20-yard. When in doubt, go one size up — overage fees on a heavy lumber load can exceed the cost difference.
How heavy is deck lumber?
Dry lumber is lighter than you might think — roughly 25–35 lbs per linear foot for 2x6 framing. But pressure-treated wood holds moisture and runs heavier. A 300 sq ft deck can generate 1,500–3,000 lbs of debris, which is typically within a 10 or 15-yard dumpster's 2-ton weight limit. The real weight wildcard is concrete footings.
Can I put concrete footings in a dumpster?
Yes, but with caveats. Concrete is accepted by most dumpster rental companies, but it's usually charged at a separate (higher) rate and may require a specific "clean fill" or "concrete only" container in some markets. If you're mixing concrete footings with lumber in the same dumpster, flag it with your hauler before booking — they need to price it correctly. Never mix concrete with household waste; that creates a classification problem.
Is pressure-treated wood accepted in dumpsters?
Modern pressure-treated lumber (post-2003) used ACQ (alkaline copper quaternary) or similar treatments — these are generally accepted in roll-off dumpsters. The concern is older pressure-treated wood (pre-2003) that used CCA (chromated copper arsenate), which contains arsenic. Many haulers won't accept CCA-treated wood, or it requires special disposal. If your deck is older than 20 years, ask your hauler about their policy before demo day.
Can I mix deck lumber with other yard debris?
Yes, typically. Lumber and yard waste (brush, branches, sod) can usually go in the same dumpster. The key exception is concrete — don't mix concrete footings with mixed debris if you want clean-fill pricing. And obviously, no prohibited items (chemicals, propane, hazardous materials).
How long does deck removal take and how long do I need the dumpster?
A skilled DIYer or two-person crew can demo a 200–300 sq ft deck in a single day. A 7-day rental is more than enough time for the removal plus a couple of days to finish loading and schedule pickup. If you're doing it solo over a weekend, book 7 days and confirm early pickup availability.
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