size is an egg and not painful dr john fung dr fung 3 doctors agreed yes umbilical hernia repair is surgery to repair an umbilical hernia an umbilical hernia is a sac formed from the inner lining of your belly that pushes through a hole in the abdominal wall at the belly button
1 Multiply the perimeter by the ceiling height to get the total wall area: 50 ft. x 8 ft. = 400 sq. ft. 2  Doors are usually 21 square feet (there are two in this exercise): 21 sq. ft. x 2 = 42 sq. ft.  Windows average 15 square feet (there are two in this exercise): 15 sq. ft. x 2 = 30 sq. ft.
2â³ DOOR THICKNESS. To calculate your door weight mulitply the size of your door (in square feet) times the number in the chart above (pounds per square feet). The result is your door weight in pounds. For example if you have a 1-3/4â³ thick door that is 8â0â³ by 3â2â³ and made out of oak, you would calculate the square inches of the door (96 x 38 = 3648) and divide by 144 to get the square footage (3648/144 = 25.33).