1000 sq ft should do it
Da-Lite, the projector screen company has a great calculator here and even includes a brand and model reference.
22.96 acres.
2*(5280 ft.) - 1000 ft. = 9560 ft.
1000 sq metes = 10764 sq ft.
To determine the volume of air needed to float an object, you need to know the density of air and the weight of the object. For example, if the density of air is approximately 0.075 lb/ft³, then to float a 1000-pound object, you would need approximately 13,333.33 ft³ of air (1000 lb / 0.075 lb/ft³ = 13,333.33 ft³).
1 km = 3,280.84 ft
2.30
12,000
1000
Answer: 1000 ft² = 0.022956 acres.
Math says 4 1/2 4"x8" bricks are needed to cover 1 sq. ft. So 9 bricks will cover 2 sq ft. That needs to happen 500 times so you need 9x500 or 4500 bricks sized 4"x8" to cover 1000 sq ft.