65 Years of Building Materials Experience

Modern Builders Supply, Inc. is a wholesale building supply distributor. We have been servicing builders and contractors since 1944. Through providing high quality products and unbeatable service, MBS has become one of the top building supply distributors in the MidWest with 25 locations in 6 states to serve your needs. Click here to see a list of our branches.

Featured Building Supply Article

How to thrive in today’s building products industry by responding and fulfilling the changing needs of the marketplace

Your Gutter Supplier

Modern Builders Supply is proud to announce our new and improved gutter program. We are now offering lower prices and better selection on all of our gutter supplies.

NOW IN STOCK AT ALL LOCATIONS

• Gutter Coil
• Run-Off Gutter
• 5" & 6" Gutter Machines* (available at all locations, not in stock)
• Elbows, Downspouts and Mitres
• Hangers, Wedges and Ferrules
• Strainers and Outlets
• Splash Blocks
• Pipe Bands
• Touch Up Paint

Learn more about our gutter supplies

Building Supply Product Spotlight

Attention Door Installers! Reduce Air and Moisture Infiltration and Labor

Protecto Premium Dual Guard Threshold Tape™

For years door manufacturers have been blamed for having entry door systems that need constant adjustments so they can open and close properly. The fact is, in a majority of the cases, the major cause of adjustments is due to moisture and the possibility of black mold infiltrating into the sub-floor. This not only causes swelling and warpage of the sub-floor and structural framing but also racks the door frame out of square. Once this happens the door will needconstant adjustments not to mention the additional areas for air and black mold to infiltrate a home.

Protecto Wrap Company’s NewProtecto Premium Dual Guard Threshold Tape™with its unique patentedflange acts like a gasket, sealing off the sub-floor and preventing air and moisture infiltration under the threshold. This will help keep the door frame from racking and the sub-floor from swelling and warping.