Style 400 is similar Style 200 but with narrow 1-5/8" spacing between the pickets. Style 401 is similar to Style 101 but with 1-5/8" spacing between pickets. Style 402 is 1-5/8" spaced version of Style 202 for those who do not want exposed points on their fence. All sections are 6' long. Styles 401-402 will pass most pool codes in 4', 5' & 6' high. Style 400 will pass most pool codes in 5' & 6' High