I saw this yesterday at a website for a company named Bullion Coatings.

Problem:
“Masonary” — with two instances of the letter A — is a misspelling.

Explanation:
The website referred to “Masonary Effects”.

The intent of this phrase was to say that the company could apply an acrylic coating to concrete to create stonework-like effects, which gives us the solution — “masonry” — without the second instance of the letter A.

For fun, I searched Google for each of the following words (without the quotation marks) and got about the indicated numbers of matches:

• “masonry” — 18,000,000 matches
• “masonary” — 420,000 matches

This tells me that Web authors have written the word correctly vs. incorrectly by a ratio of 42.9:1, which is good, but the fact that the Web contains almost 500 thousand instances of “masonary” is bit disappointing.

Solution:
“Masonry”