Welcome to Allied Midwest Merchandisers, Inc. We have been proudly supplying the independent lumber dealers of South Dakota, Nebraska, Iowa and Minnesota with quality lumber and building materials since 1959 from our Sioux Falls, SD distribution center. For all of your needs in lumber, decking, drywall, roofing, insulation, windows, tools, fasteners, caulks, steel and everything in between, AMMI is your one-stop wholesale source.