Brick and Mortar versus Brick and Morter

What is the Difference Between Brick and Mortar and Brick and Morter?

When to Use Brick and Mortar

Brick and mortar is an expression. It is often used as an adjective to describe a business that has a physical storefront, as opposed to an online-only business. When used in this sense, it should be hyphenated to form brick-and-mortar.

Brick and Morter

Morter is not a word in English. Given this fact, you should never use brick and morter. It is a common spelling error. Use brick and mortar instead.

Brick and Motor

Brick and motor is also not an acceptable substitute for this expression, but there are conceivable situations where you might see it in a sentence. If you possessed a brick and, separately, a motor, and they were both part of the same discussion, perhaps you might consider using this phrase.

Summary

Is it brick and mortar or brick and morter? Brick–and-mortar is an expression that describes a business with a physical location. Grammatically, it forms an adjective phrase.

Brick and mortar is the correct spelling.
Neither brick and morter or brick and motor are suitable substitutes.