Guides
Short, practical references that show the math behind material estimating. Each guide pairs with one of our free calculators.
How Many Bags of Concrete in a Cubic Yard?
Bag counts for 40–80 lb bags, with worked examples and a chart.
Mulch Coverage Chart
How much one cubic yard of mulch covers at 1–4 inch depths.
How Thick Should a Concrete Slab Be?
Thickness by use — patio, driveway, garage — plus reinforcement and base prep.
Gravel Driveway: Layers, Depth & Quantity
The three-layer build-up, stone sizes, tonnage math, and drainage details.
Crushed Stone Sizes Explained
What #3, #57, #8, and crusher run mean, and which grade fits your project.
Calculators
- Concrete Calculator — Slabs and round footings: cubic yards plus 40, 50, 60, and 80 lb bag counts.
- Mulch Calculator — Cubic yards and bags of mulch for beds at your chosen depth.
- Gravel Calculator — Cubic yards and tons of gravel, crushed stone, sand, or topsoil.
- Paver Calculator — Paver count for your patio plus gravel base and bedding sand.
- Sod Calculator — Slabs and pallets of sod needed to cover a new lawn.
- Retaining Wall Block Calculator — Courses and total block count for a straight gravity retaining wall.