A wythe is a masonry term that refers to a vertical section of masonry that is continuous and one unit in thickness. In most cases you will find single wythe or multiple-wythe masonry. The wythe can be interlocking with a wythe nearby or it can be independent of the other wythe. The more layers of wythe the stronger the construction of the wall or structure. The wythe might be different based on the type of brick being used and whether it is being used for appearance or for structure strength.
It is often advantageous to have a home inspector look over the wythe of a home you are considering for purchase or your own home if you feel that it has foundation or masonry issues. A professional can determine if the property has the right wythe for the building size and they can help you make some decisions regarding how to best make sure your building is safe. Making sure that you have the right wythe can make the difference when it comes the look and the strength of a building. Taking the time to get the opinion of a professional is essential to the best results and to making sure that your building is as strong as you need.