About Us

R&K has 38 plus years of experience in residential tract work, custom homes, and apartments, as well as commercial buildings, churches, schools, and offices. Since 1974, R&K Building Supplies has been serving residential and commercial contractors in the Valley. Our doors, insulation, truss, lumber and window divisions provide extensive product selection and complete customer service to guarantee satisfaction in our company. Throughout our history, we have established ourselves as one of the most efficient and successful building supply businesses in the Valley.

R&K Building Supplies, Inc was founded and incorporated in 1974 by Ross Farnsworth, a prominent developer and builder of retirement communities in the East Valley. R&K's Gilbert facility is situated on twelve plus acres near the intersection of Baseline Road and Country Club Drive in Mesa, one-half mile south of the Superstition Freeway, with over 60,000 sq. ft. of offices, warehouses, and covered storage.

R&K maintains a well-stocked inventory of lumber, doors, millwork, trusses, windows and insulation. R&K owns and maintains a fleet of more than 50 trucks, trailers and lifts. We are one of the first building supply businesses to automate our order, inventory and accounting functions to provide faster more efficient service to our customers.

All of our product lines are top quality and we work to provide a broad range of selection for contractors’ needs.

We are continually upgrading our plant equipment to ensure the highest quality and efficiency in the products offered. From custom homebuilders to commercial contractors, R&K has developed a reputation of excellence with reliability & knowledge.