Drywall for a 12x14 room addition
A 12x14 room addition with 9ft ceilings has about 468 sq ft of wall area and 168 sq ft of ceiling. Calculator pre-filled below.
Material Totals
4x8 drywall sheets22 sheets
Drywall screws (1-5/8 in coarse)636
Joint compound (5-gal buckets)4 buckets
Paper tape (linear ft)43 ft
One 4x8 sheet = 32 sq ft. 10% waste factor included.
Printable Shopping List
Total area636 sq ft
4x8 drywall sheets (1/2 in)22 sheets
Drywall screws636
Joint compound (5-gal)4 buckets
Paper tape43 ft
Generated by BuildTotals.com | buildtotals.com/tools/drywall-calculator
For ceilings, use 5/8in drywall (heavier, less sag). Consider 4x12 sheets for long ceiling runs - fewer seams mean less taping work. Rent drywall lifts for ceiling installation.