Welcome to Weyerhaeuser's new website!

You appear to be using an older browser. This website is best viewed using the latest versions of Internet Explorer, Chrome, Safari, and Firefox. If you proceed without upgrading or switching browsers, you may not experience optimal navigation or page functionality. Thank you for your interest in Weyerhaeuser and we hope you enjoy your visit.

Update my browser now


What Are Cellulose Fibers?

Nature's factory

Trees are nature’s factories. They take simple ingredients like water, carbon, oxygen and nitrogen and turn them into complex molecules like cellulose fibers.

In fact, cellulose fibers are one of the world’s most useful and abundant natural materials. They are the main component of cell walls in most plants, and they give wood its strength and resilience. Essentially chains of linked sugar molecules, cellulose fibers are used in a variety of products — including textiles, paper and diapers — because of their strength, durability and ability to absorb and transport water.