Concrete is measured in cubic yards an you will need a little over five yards.
I Want To Pour A Cement Slab 14x30 4". How Much Concrete Will I Need?
Need correct measurements 14 what(inches,feet) and 30" or 30.4"or 30 feet long by 4" thick....14 ft wide X 30 ft long with a thickness of 4 inches or standard measurement of L x W x H