The 5141 Square Top Colonial Stair Baluster is turned from 1-1/4-inch Blanks and is available in 31, 34, 36, 39 and 42-inch lengths. The 5040 baluster has the 3/4-inch dowel turned at the base. This is a structural rise baluster with a bottom square of 7-1/2-inch and a top square of 6-1/2-inch. Stocked in Red Oak, Poplar and Soft Maple. All other wood species are available with an 8 to 10 business day lead time to ship.