Can some explain the best way to measure for the amount of sheetrock I will need for a room?

The room is 10.5 ft by 28 ft. I need sheetrock for the walls and ceiling. Can someone please help me?

Answers:
The sheets are available in 4 x 8 or 4 x 10 or 4 x 12. Assuming your room is 10 feet high or less, you need twenty 4-foot sheets of either 8 or 10 feet in length to do the walls...(10.5 + 10.5 + 28 + 28 ) / 4 = 20 sheets.

To do the ceiling, four 8-foot sheets could go the length of the room. Three across would be 12 feet. The ceiling would therefore be 4 x 3 sheets = 12 sheets.

Total 32 sheets.

Other answers:
and the height of the room is???
and the height of the room is???
sheet rock is 8feet by 4 feet which is 8x4=32 squarfeet per sheet.
Take your room square feet divide by 32 that is how many sheets you will need.
measure one wall at a time if one wall is 10.5x28=294 then divide by 32 = 12.7 so you need 13 ( round up to they do not sell .7 sheets )
I assume the dimensions (10.5 ft x 28 ft) are for the floor surface area? How high is the ceiling? You would need that measurement to determine the amount of material needed for the walls. In fact to make this easier you should measure each wall and do the same calc I did below for the ceiling.

If you would like to cover the ceiling you would need at least 10.5 x 28 square ft of material. It is generally a good idea to buy some extra (perhaps 5 - 10%).
Hey been there done that...Don't give your self a headache. The best and easiest way to do this is take your room measurement to the hardware store and they will let you know the right amount to buy.
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