When you ask how do I calculate demolition debris for a dumpster size, the answer comes down to one simple formula: length × width × height × 0.33 ÷ 27. That gives you cubic yards — the number every dumpster rental is sized around. The 0.33 factor accounts for airspace, because broken-up debris never packs solid. Skip it and you’ll underestimate your load, order the wrong size, and pay for an extra haul. This free calculator does the math for you. Enter your project dimensions, pick your material type — concrete, drywall, wood, or mixed debris — and get an instant cubic yard total with a recommended dumpster size. Whether you’re gutting a kitchen in Peoria or leveling a full structure, knowing your debris volume before you order saves time, money, and guesswork.
🏗️ Construction & Demolition Waste Calculator for Dumpster Sizing
Calculate your C&D debris volume and get accurate dumpster size recommendations. Uses the professional formula with a 0.33 airspace factor for more realistic results.
Length × Width × Height × 0.33 ÷ 27 = Cubic Yards
🚛 Recommended Dumpster Size
💡 Pro Tip
Long-term holds cost more than quick turnarounds. Plan your demolition to fill the dumpster efficiently and schedule pickup as soon as possible.