Table 24 - Typical Number of Columns as a Function of Tank Diameter for Internal Floating Roof Tanks With Column Supported Fixed Roofs a

Tank diameter range (D in feet)Typical number of columns, (NC)0 < D ≦ 85185 < D ≦ 1006100 < D ≦ 1207120 < D ≦ 1358135 < D ≦ 1509150 < D ≦ 17016170 < D ≦ 19019190 < D ≦ 22022220 < D ≦ 23531235 < D ≦ 27037270 < D ≦ 27543275 < D ≦ 29049290 < D ≦ 33061330 < D ≦ 36071360 < D ≦ 40081a Data in this table should not supersede information on actual tanks.