The 4.5 in the pail box is a common retail bucket. Confirm the label. USG’s table is in gallons, not in a required bucket size. Sheet count for the same area is the drywall calculator. A skim coat is not in the 10 gallons.
FAQ
How much mud?
USG’s guide and the All Purpose submittal both use about 10 gallons per 1,000 square feet. That is joints, corners, and fasteners in a typical room. It is not a full skim. Plus 3 is about 9 gallons per 1,000 on the same guide.
How much tape?
37 feet per 100 square feet, 370 feet per 1,000, from the same USG table. A 250 foot roll is a product length. Divide the feet by the roll you buy.
Sources
- USG installation guide J371: 1.0 gal All Purpose and 37 ft of tape per 100 sq ft. Plus 3 is 0.9 gal.
- USG All Purpose submittal J1969: About 10 gal per 1,000 sq ft.