Stair Kit 8 foot long, complete with, one 8' length of shoe mould; lower rail; upper Rail; cap mould; and two 8' long unshaped stiles that are angle cut and shaped on site. All trims are made from primed MDF except for the shoe trim which is made from primed, finger joined Poplar for better impact and moisture resistance. You may want to order the 99-470 bit from us to save time. These 8 foot stiles call make a anywhere from 4 to 6 stiles depending on the height of the system and the angle of your stairs.