No, one-half inch drywall is not actually one-half inch thick. It is typically around 0.48 inches thick.
Depends where you buy it, but around $34.
The modern home has walls that are about 5-inches thick. The studs are 4-inches thick then a .5-inch drywall is added to each side.
The weight of a sheet of drywall depends with its thickness. For instance the standard 1.27 cm thick sheet of drywall measuring 4'x8' will weigh approximately 26 kilograms while ultra light Panel will weigh 6 kilograms less, for a total of 20 kilograms. A 4x8 sheet of drywall that is 1/2 inch thick weighs 54 pounds. A 4x8 sheet that is 5/8 inch thick weighs about 70 pounds. The weights given are for standard drywall. 2000/54= 37 sheets 2000/70=28.5 sheets 29 would be just over a ton.
No, it only comes 48 inches wide.
According to United States Gypsum (www.usg.com), standard drywall weighs about 3.4 lbs per sq ft per inch thickness. Water resistant drywall (greenboard) weighs about 3.9 lbs. per sq. ft. per inch thickness. Firecode C drywall weighs about 4.2 lbs. per sq. ft. per inch thickness. These are approximations, as the ratio of core vs. covering varies for different thicknesses, thereby varying the exact weights. So, 1/2" thick standard drywall weighs 3.4 x 0.5, or 1.7 lbs per sq. ft. 4' x 8' x 1/2" thick sheet weighs 1.7 x 32 s.f. = 54 lbs. 4' x 10' x 1/2" thick sheet weighs 1.7 x 40 s.f. = 68 lbs. 4' x 12' x 1/2" thick sheet weighs 1.7 x 48 s.f. = 82 lbs. 5/8" thick standard drywall weighs 3.4 x 0.625 = 2.2 lbs per sq. ft. 4' x 8' x 5/8" thick sheet weighs about 70 lbs. 4' x 10' x 5/8" thick sheet weighs about 88 lbs. 4' x 12' x 5/8" thick sheet weighs about 105 lbs.
More than likely you have 1/2" or 5/8" drywall. Remove one of your electrical outlet covers, you should be able to see the depth of the drywall in the gap next to the outlet box.
Depends on the MFG, and type. I have seen R19, from 5 inch to 6.5 inch in thickness.
For interior walls you want to use 1/2 inch size drywall. You want to use the thicker drywall because its stronger and it's a lot harder to damage than the thinner drywall.
five thousands of an inch.
5 mil is 0.005 inch. or 5 thousandths of an inch. Many people claim it is millimeters, but that would be denoted by 5mm.
If the framing is wood, you use the #6 x 1-1/8 drywall screw. If the framing is metal, you can still use those screws, but I find it goes faster if I use #4 x 1 inch drill tippedscrews. About 50% more to buy (at Drywall warehouses) but they save lots of time.