The manufacturer offersassurances that its Nantucket Collection wood doors will not warp, twist, or separate at the stiles and rails. Each door is made from black locust or Nootka cypress and features a floating mortise-and-tenon with face-driven pins to eliminate stile and rail separation. The line is produced in two thicknesses: 1 3/4 inches and 2 1/4 inches. Cost: $750 to $1,500. Simpson Door Co. 253-779-6400.