Stucco Calculator

Calculate stucco mix, metal lath, and supplies needed for exterior or interior walls. Accounts for doors and windows.

🏘️ Stucco Calculator

Results

Gross Wall Area1,440.00 sq ft
Net Stucco Area1,278.00 sq ft
Metal Lath Sheets48 sheets
Stucco Mix (80 lb)154 bags

πŸ’‘ How to Calculate Stucco Materials

Traditional three-coat stucco consists of a scratch coat, brown coat, and finish coat applied over metal lath on exterior walls. Total thickness is about 7/8 inch. An 80 lb bag of stucco mix covers approximately 25 square feet per coat.

Metal lath sheets are typically 2.5 Γ— 10.5 feet (about 27 sq ft each). Subtract door openings (about 21 sq ft each) and window openings (about 15 sq ft each) from the gross wall area to get the net stucco area.

A house with four 40Γ—9 ft walls, 2 doors, 8 windows: gross = 1,440 sq ft, minus 162 sq ft openings = 1,278 sq ft net. 3-coat stucco: about 154 bags of 80 lb mix and 48 lath sheets.

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