One of the largest of the Redwood Trees known, The Lindsey Creek Redwood, was estimated to weigh over 4,000,000 pounds ( about the weight of a saturn 5 rocket) and contained over 80,000 cubic feet of Redwood. This equates to about 6,500 board feet of lumber. This tree fell of its on accord after living a long life.
A more typical farmed Redwood tree will weigh approximately 50,000 pounds and contain around 2,000-3,000 board feet of lumber.