In an older home, multiply the square footage by 125 watts, not 10 In an ultrainsulated home, multiply the square footage of the room by 75 watts, not 10The square footage of a room measuring 12 feet wide by 12 feet long is 144 square feet To calculate this you simply multiply the width by the height 12ft × 12ft = 144 sq ft Square feet to cubic feet If you would like to convert your square footage into cubic feet, take a look at the square feet to cubic feet calculator Add 25% more wattage if the ceilings are 10 feet high rather than 8 feet Add 50% more wattage if the ceilings are 12 feet high rather than 8 feet ;
What Is The Average Size Of A Living Room Answered By Decor Snob