Stucco Calculator

How much stucco do I need?

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Order this much stucco base

3280 lb base-coat bags

Base coat assumes about 22 sq ft per bag at 3/8 in, with 10% extra. Finish-coat coverage varies by product and texture, so check the bag.

40 ft9 ftScratch 3/8 + brown 3/8 + finish 1/8 in
Wall area320 sq ft
Base coat thickness0.75 in
Finish coat, 1/8 inabout 6 bags

Pick three-coat over lath or two-coat over masonry and see base bags and finish separately, because they are different products.

How it works

Base coats are 3/4 inch for three-coat and 3/8 inch for two-coat, at about 22 square feet per 80 lb bag per 3/8 inch. Finish is estimated at 1/8 inch.

Before you order

  • Mist the scratch coat as it cures so it does not dry too fast.
  • Plan the work so a whole wall finishes in one go to avoid lap lines.
  • Install weep screed and flashing before the first coat so water has a way out.

Common questions

How thick is three-coat stucco?

About 7/8 inch: a 3/8 inch scratch coat, a 3/8 inch brown coat and a 1/8 inch finish.

How much does a bag of base coat cover?

Roughly 20 to 24 square feet at 3/8 inch for an 80 lb bag on many products.