Three-Coat Stucco Materials Calculator
Calculate complete layer-by-layer materials for ASTM C926 traditional three-coat exterior Portland cement stucco: Type I/II Portland cement, hydrated lime, plaster sand tonnage, diamond mesh metal lath sheets, and foundation weep screed.
Wall Surface & Stucco Specifications
sq ft
Total exterior wall elevation area.
sq ft
Total area of all windows and doors.
LF
Linear feet of foundation base for weep screed.
Total Base Coat Cement Required
ASTM C926 3-COAT COMPLIANT
21 Bags (94 lb)
For 3/8" scratch + 3/8" brown coats (7/8" total plaster system)
Hydrated Lime (Type S)
11 Bags (50 lb)
Imparts plasticity and workability
Plaster Sand
2.7 Tons
~2.0 cu yds clean masonry sand
Finish Coat & Accessory Lath Hardware
Color Finish Coat Stucco (1/8"):
10 Bags (80 lb)
Diamond Mesh Lath (2.5 lb/yd²):
63 Sheets (27" x 96")
Foundation Weep Screed (10ft):
12 Sticks (10 ft)
Net Plaster Surface Area:
1,000 sq ft