Sierra Pacific Industries

spi-ind.com

Grow with us. Sierra Pacific Industries started in 1949 with one sawmill in Humboldt, CA. Today, with over 6,000 crew members, we are one of the largest U.S. lumber and millwork producers, manufacture windows, and generate renewable biomass energy. SPI owns and sustainably manages over 2.4 million acres of timberland in California, Oregon, and Washington. We are growing forests for our future, planting over 10 million new trees every year. Our forests are sustainably managed by a team of foresters, wildlife biologists, botanists, and other professionals. Our advanced manufacturing processes allow us to utilize nearly 100% of every piece of wood we bring to our mills. We produce lumber, millwork, and landscaping material. Any leftover woody material is converted into electricity in our eight biomass-fueled power plants. Our Sierra Pacific Windows division crafts windows and doors from select wood species grown and harvested in our own forests.