Gyms come in all sizes. The area of the floor is found by measuring the length by the width. A typical high school Basketball court is 84 by 50 so the gym floor might be 90 by 60 or 5400 square feet.
Square metres or square yards
50
Foot
square meter
48
18000
40 feet
Usually a Basketball court length
Square metres or square yards
5 by 5!
It may help a little if you were to disclose the dimensions of said 'gym floor'. Polyurethane normally goes approx 500 sq feet per gallon. Multiply the length and width of the floor, divide that total by 500 and that will tell you how many gallons you'll need for one coat.
The area if a rectangle = lengt*hightSo in this case: 122ft*96ft = 11 712 square feet ((ft)^2)
one person requires 9 square meter area in gym
50
wood
A basketball court is 94 feet long and 50 feet wide, so you can estimate about 125 feet long and 70 feet wide.
The paint that should be used on a gym floor is an oil based paint. This paint adheres best to the surface and lasts a long time.