SierraPine, Composite Solutions Since SierraPine's beginnings in 1992, we have focused on being the best composite panels company in the Industry. Through strategic acquisitions, we've grown to be North America's third largest MDF, particleboard and moulding producer, with one billion square feet of capacity. And today, our twelve-hundred employees are focused on just one thing when we come to work - driving excellence in the composite panel industry. It's what we do all day, every day. SierraPine offers you more than just a "product at a price." We welcome your business' challenges as our own and won't rest until we deliver a solution that works for you