From stopping drafts and keeping out unwanted bugs, to creating beautiful floor transitions, and more... Our products help our customers create a more comfortable home environment.

It was a simple – but revolutionary – first. L.A. Macklanburg, frustrated with the dust and dirt blowing in under his door, created the first form of weatherstripping inspiring not only a solution, but a business. It was symbolic of the smart, refreshingly uncomplicated thinking that continues to define M-D Building Products today: quality that never wavers and innovation that never stands still.

A family-owned business with more than 90% of our products manufactured in North America, we stand apart in our ability to maintain higher standards of quality control, respond faster to changing market conditions and meet consumer demand with greater speed and efficiency.

Our commitment to our roots runs deep. We’re proud to provide stability for thousands of North American families who devote their time to manufacturing products that improve people’s lives and homes.

Stewarding our resources and minimizing our impact on the environment are important to us. We are engaging in multiple initiatives to reduce our carbon footprint including the installation of solar panels, upgrading to more efficient machinery, converting to electric forklifts, and more.