The furniture factory is a facility that produces 1x [[furniture]] every 4 minutes.
You need 5/36 of a [[Tree farm]] to sustain this. In other words, 5 [[Tree farm]] can fuel 36 Furniture factory.
This factory is considered by many players to be a key factory. You NEED this factory to progress to getting a [[logistics center]], which is where you can generally get aided by other players for resources. Want to get a good retail set-up? You need others to give you the resources. Want to be an end-product wholesaler? You need [[CPU]]s and other penultimate tier resources. The fact that a [[logistics center]] is pretty much necessary makes furniture factories also necessary.