Cable Tray Fill Calculator – Cable Tray Sizing

Per the National Electrical Code Article NEMA 392-9(b) cable tray fill calculations and cable tray sizing calculations will be computed as follows. Cable Trays may be filled 50% when using control or signal wiring. The sum of the cross sectional areas of all cables cannot exceed 50% of the trays fill area. The cable tray sizing equals the width times the loading depth. Generally, cable tray sizing is correct when it appears 50% full of cable or wire , or when it contains a 50% fill of cables or wire.

Wire Basket Cable Tray Fill Calculator – Cable Tray Sizing Calculator

Catalog Number Tray Width (inches) Tray Depth (inches) Quantity of Cables by Cable Diameter
0.210″ 0.250″ 0.265″ 0.300″ 0/354″
CK-2-3M-EZ 2 2 55 39 35 27 5
CK-4-3M-EZ 4 2 111 78 70 54 10
CK-6-3M-EZ 6 2 167 118 105 82 16
CK-8-3M-EZ 8 2 223 157 140 109 21
CK-12-3M-EZ 12 2 355 236 210 164 32
CK-24-3M-EZ 24 2 671 437 421 327 65
CK-4-3M-EZ 4 4 223 157 140 109 21
CK-6-3M-EZ 6 4 335 236 210 164 32
CK-8-3M-EZ 8 4 447 315 281 218 43
CK-12-3M-EZ 12 4 671 473 421 328 65
CK-18-3M-EZ 18 4 1006 710 632 493 98
CK-24-3M-EZ 24 4 1342 947 843 657 131
CK-8-3M-EZ 8 6 671 473 421 328 65
CK-12-3M-EZ 12 6 1006 710 632 493 98
CK-18-3M-EZ 18 6 1510 1065 948 740 147
CK-24-3M-EZ 24 6 2013 120 1264 968 197
CK-30-3M-EZ 30 6 2517 1771 1580 1233 245
CK-36-3M-EZ 36 6 3019 2130 1896 1479 295