Wood

Wood litter is generally available in a pellet form made from compressed sawdust. The most common wood in the pellets is pine, though sometimes mixed woods are used. Avoid any products that contain cedar because cedar oil is toxic to cats.

Advantages

  • Relatively dust free, and the dust they do have doesn’t come from silica, so it may be safe to inhale
  • Solid pellets do not easily track through the house
  • Crumbled pellets are flushable and compostable
  • Some varieties have green tea added for natural odor control and anti-bacterial properties
  • Inexpensive if you opt for wood stove pellets or horse bedding pellets
    • Be careful if buying horse bedding, because some pellets contain cedar
    • Some horse bedding is coated with chemicals to stop horses from eating them

Disadvantages

  • Almost always comes in a pellet texture that many cats don’t like
  • Natural odor from the materials can be offensive, and can aggravate asthma/allergies in cats and humans
  • Often not good for odor control and requires multiple cleanings per day and frequent total box changes
  • Expensive if you buy “cat litter” varieties
  • Cats can have allergic reactions to the natural oils in the pellets
  • Wood pellets are known to release deadly carbon monoxide (CO) during storage
    • Avoid storing large amounts of wood pellet litter inside your home
    • Reduce your risk of poisoning by installing a carbon monoxide monitor as close to your stored litter as possible
    • If storing litter outdoors in a shed or bin without a CO monitor, open the doors and let the space air out for at least 10 minutes before entering to remove any litter