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about GRS Supply

GRS Supply began in 2015 as Grand Roofing Supply in Grove Oklahoma serving the counties of Ottawa, Delaware, Craig and Mays with  residential roofing materials. It wasn't long before  contractors in the Tulsa area were calling, wanting the competitive pricing and stellar customer service we offer.


In January of 2018, a branch warehouse was opened in Tulsa with Shane Bowman coming on board as branch manager. Later that year, the two warehouses merged, with Tulsa being the choice location to serve all of Northeast Oklahoma. Also at that time, Shane became a partner and was promoted to General Manager. 


Lowell "LP" Porter joined the team in 2019 as warehouse foreman and shares in the delivery duties.  Also in 2019, it was decided to migrate the name from Grand Roofing Supply to GRS Supply. New logos and a move to a larger facility to compensate for the increase in needed inventory came about at the end of the year.


Presently, GRS Supply is an authorized distributor of Pabco, CertainTeed and Tamko Roofing Products. Starwrap Inc, a manufacturer of synthetic underlayments, has designated GRS Supply as a distributor of their line of products. 


GRS Supply is uniquely different than other distributors in the Tulsa market. First and foremost, GRS supply is a local business owned and operated by two local businessmen, Shane Bowman and David Tinney. Both live in the metro area and  are actively involved in the day to day operation of the company. You have a need or a problem to be solved, one or both are available to make an on-the-spot decision. No waiting for it to go up the corporate ladder for someone else to make a decision.  


Second and just as important, both of the owners have worked on the contractor side of the roofing business. They know what a contractor faces every day because they have done it, too. They totally understand the contracting aspect of the industry and can relate on a personal basis. Not many, if any, of the managers on the corporate side can say that. 


GRS Supply believes in giving back to the community. Shane, being a veteran, is active in organizations that help veterans and their families and Tulsa area HBA. David, an avid sportsman is active in management of waterfowl habitat and a sponsor of Ducks Unlimited and a member of Delta Waterfowl.


We invite you to meet and get to know us. We believe we can make a positive difference in your business as we serve Northeast Oklahoma roofers, builders and contractors. Stop by, we'd love to meet you!