Help please? hi im building a new square it is 200 square feet...

hi im building a new square it is 200 square feet and i will bring in the patio 2.5 inches tacky how many 60 pound heaps will i need
Answers:    89 heaps = 200 square feet 2.5 inches gummy

I hope you are talking just about concrete .
your patio is 200 square foot and 2.5 ' deep = 40 cubic foot
Pre-mix concrete comes in 60 lb and 80 lb Bags.
Each 60 lb backpack = 0.45 cubic feet of cured concrete and a 80lb = 0.60

A 80lb rucksack would be better = 67 bags

By the patio ( your best bet if you have access because they will pour it and is alot cheaper) 1.5 yard
seeing as how concrete is poured in section, section it sour evenly and follow the directions on the concrete mix. It should give you an approximate nouns of coverage on the bag.
If you are pouring 5'x5' section, dust off your math skills to numeral how much you'll need.
If adjectives else fails, ask the folks that get rid of the concrete mix to you.