HomeRivet Blog
Short, practical guides to working out how much material a project needs. Each one links to a free calculator so you can run your own numbers.
How Many Bags of Concrete for a 10x10 Slab? 4-Inch Example
A 10x10 slab 4 inches thick needs 33.33 cu ft of concrete, or 56 bags of 80 lb mix or 75 bags of 60 lb mix. Here is how the count is worked out.
· Concrete Calculator
How Much Paint for a 12x12 Room? Gallons Needed
A 12x12 bedroom with 8-foot walls, one door, one window and two coats needs 2 gallons of paint at 350 sq ft per gallon. Here is how the estimate works.
· Paint Calculator