QUALITY CLASSIFICATION
Quality class ranks buildings according to their amounts of materials, grades of materials, and
workmanship. If two buildings are of the same design type, construction type, shape, and size,
but one has more materials or better materials, it will have a higher square foot cost. Also, if two
buildings are exactly alike, except that one was built with greater care and skill, it will be of
better quality and will have a higher cost.
Of the five choices that lead to the overall classification of a building, the choice of a quality
class is the most difficult. The relative quality of a building is not as obvious as its design type,
construction type, shape, or size. Many points of reference must be observed. Many parts of a
building cannot be seen, and their presence and nature must be inferred.