DumpsterGod

Basement flood cleanup: container, weight and what you cannot throw in

Direct answer

A 20 yard container. Water is the whole story. Saturated drywall, carpet, padding and stored cardboard can weigh several times their dry weight. Expect $325 to $775 for the rental, and check the material list below before you start — this job produces 5 things worth verifying.

Recommended
20 yd³
Constraint
Weight-limited
Weight limit
2–4 tons
Typical cost
$325–$775

How much debris this job produces

Volume looks like a 15 yard job and weight often behaves like a 30. Assume you are near the tonnage cap and ask for a higher allowance up front rather than arguing about overage later.

Why this size and not the next one

Water is the whole story. Saturated drywall, carpet, padding and stored cardboard can weigh several times their dry weight. The 20 yard is the most-rented size in the country and it is still 4 feet tall, so you can throw over the side instead of walking the door. That combination is why it is the safe default.

Also reasonable: 15 yd³, 30 yd³.

What goes wrong on this job

  • Work fast — every day the material sits, it gets heavier and more contaminated
  • A mold-contaminated mattress is specifically exempt from the Massachusetts mattress ban, which makes a flooded basement one of the few times that ban does not apply
  • A flooded basement is where paint cans, fuel and pesticides get discovered floating. Those go to hazardous waste collection, not the container

Materials from this job that need checking

  • Conditional

    Drywall and gypsum board

    Accepted in general C&D loads in most of the country, but clean gypsum wallboard is banned from disposal in Massachusetts, where it has to be separated for recycling.

    Varies by state Construction debris MA
  • Accepted

    Carpet and padding

    Accepted. Roll and tie it — loose carpet wraps around the container walls and stops the load from tipping out cleanly, which is how you end up with a dump-out fee.

    Hauler policy Construction debris
  • Conditional

    Fiberglass insulation

    Fiberglass and mineral wool are accepted. Vermiculite insulation in a pre-1990 attic is a different question — it may contain asbestos and must be tested before anything touches it.

    Hauler policy Construction debris
  • Conditional

    Mattresses and box springs

    This is the clearest case on the site of a question with a different correct answer depending on where you live. Most haulers take a mattress in a general container and add a per-item charge because mattresses wrap around landfill compactor drums. In Massachusetts they are banned from disposal outright.

    Varies by state Household MA
  • Conditional

    Paint and stain

    Liquid paint is not allowed in a container anywhere — it is a liquid, and oil-based paint is a hazardous waste. Fully dried latex paint in an open can is a different material and is commonly accepted, because what is left is solid pigment.

    Federal rule Hazardous and regulated

Related questions

Sources

  1. Primary source MassDEP Waste Disposal Bans — Massachusetts Department of Environmental Protection · last reviewed 2026-08-17
    mass.gov refuses automated requests from this build environment (HTTP 403). The ban list was read from the publisher’s own guide through a search index and cross-checked against the October 2021 amendment document below.
  2. Primary source Asbestos NESHAP — 40 CFR Part 61 Subpart M — US Environmental Protection Agency · last reviewed 2026-08-17
  3. Primary source 310 CMR 19.000 Final Waste Ban Amendments (October 2021) — Massachusetts Department of Environmental Protection · last reviewed 2026-08-17
  4. Primary source Household Hazardous Waste (HHW) — US Environmental Protection Agency · last reviewed 2026-08-17
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