Wholesale Siding Supply has been adding color to the Gulf Coast for over 25 years. Wholesale is locally owned and operated, and its locations span throughout southern Louisiana and Mississippi. Wholesale Siding Supply is the exclusive distributor for Royal Building Products, one of North America's largest manufacturers of vinyl products. Wholesale hs won Royal's prestigious Performance Award for outstanding commitment to sales and service excellence for the past 18 years. At Wholesale, you'll find quality material, a helpful staff, and a belief that the customer always comes first.. Specializing in Siding,Shutters,Railing,Insulation,Windows,Columns,Doors and Int. Moulding. Brands: Siding-Royal Building Products & Alside,Windows-Alside,Ellison,Maritech,US Block,NT Window,Shutters-Mid America,Columns-AFCO,Int. Moulding-US Lumber,Doors-Interior & Exterior,Railing-Railing Dynamics,Insulation-GreenGuard.