5/8 by 4’ by 9’ approx $9.40 per sheet. 5/8 by 4’ by 10’ approx $10.00 per sheet. 5/8 by 4’ by 14’ approx $14.00 per sheet. 5/8 by 4’ by 16’ approx $16.00 per sheet. * represent pricing, based on availability and other factors. Market Conditions: Demand for new housing directly affects the cost of drywall.