The numbers
- 1 cubic foot: about 150 lb.
- 1 cubic yard: about 4,050 lb, roughly 2 tons.
- A 4 in slab: about 50 lb per square foot.
Lightweight structural concrete is lighter; heavyweight concrete made with dense aggregate is heavier.
Why it matters
- Trailers: a yard of wet concrete is more than many small utility trailers are rated to carry. Check the trailer’s rating.
- Forms: wet concrete pushes hard on forms, which is why they need stakes and bracing.
- Demolition: broken concrete takes up more space than solid, but still weighs a lot. Dumpster companies often limit concrete loads by weight.
Sources
Sources last checked 1 November 2026.
