2026 GUIDE · THE MATH BEHIND EVERY OVERAGE FEE
Dumpster Weight Limits & Tonnage Guide: San Antonio (2026)
Every dumpster surprise-bill story ends at the same place: the scale. This guide gives the weight allowances by size, what common materials actually weigh, the rain rule that catches everyone, and the simple honesty that keeps your invoice identical to your quote.
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Describe your material on the call — we size for the scale, free
THE ALLOWANCES
Weight Included by Dumpster Size
| Size | Weight Included | Overage Reality |
|---|---|---|
| 10-Yard | 1.5 tons | The heavy-debris specialist — concrete, dirt, tile belong here |
| 20-Yard | 3 tons | Fits most remodels; a full roof tear-off pushes the limit |
| 30-Yard | 4 tons | Whole-home volume — keep the dense stuff out |
| 40-Yard | 5 tons | Bulky-light debris only; heavy loads hit limits half-full |
Overage bills per ton (commonly $50–$100/ton in this market) at the disposal facility’s certified scale. The rate is not a mystery fee — it’s a number you should have in writing before booking, from anyone.
What Your Debris Actually Weighs
| Material | Approximate Weight | Container Call |
|---|---|---|
| Household junk & furniture | Light — volume fills before weight | Any size, sized by volume |
| Drywall & lumber | Moderate | 20–30 yard for remodels |
| Asphalt shingles | 200–350 lbs per square per layer | 20-yard sized for tonnage |
| Tile & flooring | Heavy in volume | 10–20 yard, declare it |
| Concrete & brick | ~2 tons per cubic yard | 10-yard heavy-rated only |
| Dirt & soil | ~1–1.5 tons per cubic yard | 10-yard heavy-rated only |
| Wet/rain-soaked anything | Dramatically heavier | Tarp before storms — seriously |
The three rules that beat the scale
1. Declare the material. “Mixed junk” and “concrete” are different physics — the container gets sized right only if the description is honest. 2. Dense goes small. Heavy material in a big container wastes money on space the truck legally cannot carry. 3. Tarp before rain. San Antonio summer cells soak an open container in minutes, and the scale bills the water. Full item rules live in our what-can-go-in guide.
FAQ
Weight Limits & Tonnage — Frequently Asked Questions
How much does dumpster weight overage cost?
Overage is billed per ton above your included allowance — commonly $50 to $100 per ton in the San Antonio market. The rate should be quoted before you book; with us it always is. The allowances by size: 10-yard → 1.5 tons, 20-yard → 3 tons, 30-yard → 4 tons, 40-yard → 5 tons.
How much do roofing shingles weigh?
Asphalt shingles weigh roughly 200–350 pounds per square (100 sq ft) per layer. A typical 20–30 square San Antonio roof produces 2–4 tons — which is why roofing dumpsters are sized by weight first, and why a double-layer tear-off changes the math.
How much does concrete weigh in a dumpster?
Concrete runs roughly 2 tons per cubic yard — brutally heavy. A 10-yard container filled only halfway with concrete already approaches truck limits, which is why dense material belongs in a small heavy-rated container, never a large one.
Does rain make my dumpster heavier?
Yes — soaked debris weighs dramatically more, and that water weight bills as overage at the scale. Cover the container with a tarp before storms; in San Antonio, summer cells arrive fast, so tarp early.
How do I estimate my debris weight before ordering?
Describe the material honestly on the call: mostly furniture and junk stays light; drywall and flooring is moderate; shingles, tile, concrete, and dirt are heavy. We run the math with you and size the container so the scale holds no surprises.
Run Your Debris Math on One Free Call
Tell us the material and the pile size — we’ll size the container for the scale, quote the allowance and overage rate upfront, and your invoice will match your quote. That’s the whole system.
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