Use this handy load guide to determine the capacity of your wire mesh cable tray. Always plan for extra space in wire mesh cable trays during the initial installation to allow capacity for future cable additions.
Data Cable Fill Table
Max Number of Data Cables Allowed |
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| Cable Tray Size | Cat 5e 4-pr Plenum (.17") | Cat 5e 4-pr non-Plenum(.19") | Cat 6e 4-pr Plenum(.22") | Cat 6a 4-pr Non-Plenum (.35") |
| CM50/50 (2x2) | 88 cbls | 71 cbls | 53 cbls | 20 cbls |
| CM50/100 (2x4) | 177 cbls | 142 cbls | 106 cbls | 41 cbls |
| CM50/150 (2x6) | 266 cbls | 213 cbls | 159 cbls | 62 cbls |
| CM50/200 (2x8) | 355 cbls | 284 cbls | 212 cbls | 83 cbls |
| CM50/300 (2x12) | 532 cbls | 426 cbls | 318 cbls | 125 cbls |
| CM50/400 (2x16) | 710 cbls | 568 cbls | 424 cbls | 167 cbls |
| CM50/450 (2x18) | 798 cbls | 639 cbls | 477 cbls | 188 cbls |
| CM50/500 (2x20) | 887 cbls | 710 cbls | 530 cbls | 209 cbls |
| CM50/600 (2x24) | 1065 cbls | 852 cbls | 636 cbls | 251 cbls |
| CM100/100 (4x4) | 351 cbls | 281 cbls | 209 cbls | 82 cbls |
| CM100/150 (4x6) | 527 cbls | 422 cbls | 314 cbls | 124 cbls |
| CM100/200 (4x8) | 703 cbls | 563 cbls | 419 cbls | 165 cbls |
| CM100/300 (4x12) | 1055 cbls | 844 cbls | 629 cbls | 248 cbls |
| CM100/400 (4x16) | 1406 cbls | 1126 cbls | 839 cbls | 331 cbls |
| CM100/450 (4x18) | 1582 cbls | 1266 cbls | 944 cbls | 373 cbls |
| CM100/500 (4x20) | 1758 cbls | 1407 cbls | 1049 cbls | 414 cbls |
| CM100/600 (4x24) | 2110 cbls | 1689 cbls | 1259 cbls | 497 cbls |
| CM150/150 (6x6) | 788 cbls | 631 cbls | 469 cbls | 186 cbls |
| CM150/200 (6x8) | 1010 cbls | 809 cbls | 603 cbls | 238 cbls |
| CM150/300 (6x12) | 1515 cbls | 1213 cbls | 905 cbls | 357 cbls |
| CM150/400 (6x16) | 2021 cbls | 1618 cbls | 1206 cbls | 476 cbls |
| CM150/450 (6x18) | 2273 cbls | 1820 cbls | 1357 cbls | 536 cbls |
| CM150/500 (6x20) | 2526 cbls | 2022 cbls | 1508 cbls | 596 cbls |
| CM150/600 (6x24) | 3031 cbls | 2427 cbls | 1810 cbls | 715 cbls |
MC Power Cable Fill Table
Max Number of MC Cables Allowed |
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| Cable Tray Size | 2C (12 AWG) THHN TypeMC AlumArmor | 3C (12 AWG) THHN TypeMC AlumArmor | 3C (AWG 4/0) THHN TypeMC AlumArmor | 3C (500 kcmil) THHN TypeMC AlumArmor |
| CM50/50 (2x2) | 11 cbls | 10 cbls | n/a | n/a |
| CM50/100 (2x4) | 23 cbls | 21 cbls | 2 cbls | 1 cbls |
| CM50/150 (2x6) | 35 cbls | 31 cbls | 3 cbls | 2 cbls |
| CM50/200 (2x8) | 47 cbls | 42 cbls | 5 cbls | 3 cbls |
| CM50/300 (2x12) | 71 cbls | 63 cbls | 7 cbls | 5 cbls |
| CM50/400 (2x16) | 95 cbls | 84 cbls | 10 cbls | 7 cbls |
| CM50/450 (2x18) | 107 cbls | 94 cbls | 11 cbls | 7 cbls |
| CM50/500 (2x20) | 119 cbls | 105 cbls | 12 cbls | 8 cbls |
| CM50/600 (2x24) | 143 cbls | 126 cbls | 15 cbls | 10 cbls |
| CM100/100 (4x4) | 23 cbls | 21 cbls | 2 cbls | 1 cbls |
| CM100/150 (4x6) | 35 cbls | 31 cbls | 3 cbls | 2 cbls |
| CM100/200 (4x8) | 47 cbls | 42 cbls | 5 cbls | 3 cbls |
| CM100/300 (4x12) | 71 cbls | 63 cbls | 7 cbls | 5 cbls |
| CM100/400 (4x16) | 95 cbls | 84 cbls | 10 cbls | 7 cbls |
| CM100/450 (4x18) | 107 cbls | 94 cbls | 11 cbls | 7 cbls |
| CM100/500 (4x20) | 119 cbls | 105 cbls | 12 cbls | 8 cbls |
| CM100/600 (4x24) | 143 cbls | 126 cbls | 15 cbls | 10 cbls |
| CM150/150 (6x6) | 23 cbls | 21 cbls | 3 cbls | 2 cbls |
| CM150/200 (6x8) | 47 cbls | 42 cbls | 5 cbls | 3 cbls |
| CM150/300 (6x12) | 71 cbls | 63 cbls | 7 cbls | 5 cbls |
| CM150/400 (6x16) | 95 cbls | 84 cbls | 10 cbls | 7 cbls |
| CM150/450 (6x18) | 107 cbls | 94 cbls | 11 cbls | 7 cbls |
| CM150/500 (6x20) | 119 cbls | 105 cbls | 12 cbls | 8 cbls |
| CM150/600 (6x24) | 143 cbls | 126 cbls | 15 cbls | 10 cbls |
*Note: cables from different manufacturers will not be exactly the same. The two tables above are just for reference.