Replies

1. 
   calvin | Mar 14, 2025 07:27am | #1

   Simple answer?
   None.

   Width X Length.
   Know how your going to hang it,
   Expect scrap and no, you don’t want to have to return 5 sheets.

   Call a drywaller.

2. 
   EricTurner | Mar 15, 2025 06:48am | #2

   To estimate drywall for a room, measure the perimeter of the walls and multiply it by the ceiling height. For example, a 12x10 room with 8-foot ceilings has a perimeter of 44 feet, so 44 x 8 = 352 square feet. Then, subtract the area of doors and windows (about 21 sq. ft. for a door and 15 sq. ft. for a window). For example, subtract 36 sq. ft. for one door and one window, leaving 316 sq. ft. Finally, divide the remaining square footage by 32 (since a standard sheet of drywall covers 32 sq. ft.). In this case, 316 ÷ 32 = 9.875, so you'd need about 10 sheets of drywall.

3. 
   calvin | Mar 15, 2025 11:52am | #3

   Subtracting numerous cut outs “might” be a good idea. However, while doors cut a sheet in two, what happens to the fall? Probably can use the cut off, but maybe not.

   Windows might fall in the middle of a sheet…..but maybe not.

   And, not everybody limits themselves to 8’.

   There’s more to an order that meets the untrained eye. Imagine the homeowner that will “order the board” and then have someone else hang and worse yet, finish the board.

   So, simple ? Maybe.

4. 
   1095mike | Mar 16, 2025 01:25pm | #4

   These solutions sound like a good way to come out short of drywall. Using scrap to make up for a missing sheet will give you lots of practice for your taping skill. You need to think about the particulars of each room: closet, doors and windows, ceiling height etc.

1. 
   calvin | Mar 16, 2025 02:26pm | #5

   2 estimates above, 5-4x8 difference.
   “Simple basic formula”
   Good luck(first) Eric.

   Edit Now only one guess for the “system”, the painter left and took his posts with him. A-eye or thin skin, possible copy/paste broke.

1. 
   ericjuniorofficial | Mar 21, 2025 05:37pm | #6

   Hey, thanks for jumping in, folks! Gotta say, I’m pretty stoked my perimeter trick (yep, that’s me patting my own back) holds up as a decent starting line for this drywall gig.

   Calvin, man, you’re right—scrap and those pesky cutouts can sneak up on you, and Mike, totally get the vibe about room quirks like closets and windows messing with the plan.

   So, my basic formula’s a cool launch pad, but I’ll fudge it a bit for the real-world stuff. You guys rock—appreciate the wisdom!