Attributes . 5.5 x 4 @ 8 FT, 6.5 x 5.5 @ 10 FT, 7.5 x 6.5 @ 12 FT, 8.5 x 7.5 @ 14 FT, 9.5 x 8.5 @ 16 FT, 10.5 x 9.5 @ 18 FT, 11.5 x 10.5 @ 20 FT FT . Names