A size standard is the largest that a concern can be and still qualify as a small business for Federal Government programs. For the most part, size standards are the average annual receipts or the average employment of a firm. NAICS Codes NAICS Industry Description Size Standards in millions ...
in NAICS Code 238140 - Masonry Contractors; Installing curtain wall--are classified in NAICS Code 238190 - Other Foundation, Structure, and Building Exterior Contractors; and Installing sheet metal duct work--are classified in NAICS Code 238220 - Plumbing, Heating, and Air-Conditioning Contractors. ...