| I-Beam Designation | Actual Height | Width |
| W 4 × 13 | 4 1/8 | 4 |
| W 5 × 19 | 5 1/8 | 5 |
| × 16 | 5 | 5 |
| W 6 × 16 | 6 1/4 | 4 |
| × 12 | 6 | 4 |
| × 9 | 5 7/8 | 4 |
| W 6 × 25 | 6 3/8 | 6 1/8 |
| × 20 | 6 1/4 | 6 |
| × 15 | 6 | 6 |
| W 8 × 15 | 8 1/8 | 4 |
| × 13 | 8 | 4 |
| × 10 | 7 7/8 | 4 |
| W 8 × 21 | 8 1/4 | 5 1/4 |
| × 18 | 8 1/8 | 5 1/4 |
| W 8 × 28 | 8 | 6 1/2 |
| × 24 | 7 7/8 | 6 1/2 |
| W 8 × 67 | 9 | 8 1/4 |
| × 58 | 8 3/4 | 8 1/4 |
| × 48 | 8 1/2 | 8 1/8 |
| × 40 | 8 1/4 | 8 1/8 |
| × 35 | 8 1/8 | 8 |
| × 31 | 8 | 8 |
| W 10 × 19 | 10 1/4 | 4 |
| × 17 | 10 1/8 | 4 |
| × 15 | 10 | 4 |
| × 12 | 9 7/8 | 4 |
| W 10 × 30 | 10 1/2 | 5 3/4 |
| × 26 | 10 3/8 | 5 3/4 |
| × 22 | 10 1/8 | 5 3/4 |
| W 10 × 45 | 10 1/8 | 8 |
| × 39 | 9 7/8 | 8 |
| × 33 | 9 3/4 | 8 |
| W 10 × 112 | 11 3/8 | 10 3/8 |
| × 100 | 11 1/8 | 10 3/8 |
| × 88 | 10 7/8 | 10 1/4 |
| × 77 | 10 5/8 | 10 1/4 |
| × 68 | 10 3/8 | 10 1/8 |
| × 60 | 10 1/4 | 10 1/8 |
| × 54 | 10 1/8 | 10 |
| × 49 | 10 | 10 |
| W 12 × 22 | 12 1/4 | 4 |
| × 19 | 12 1/8 | 4 |
| × 16 | 12 | 4 |
| × 14 | 11 7/8 | 4 |
| W 12 × 35 | 12 1/2 | 6 1/2 |
| × 30 | 12 3/8 | 6 1/2 |
| × 26 | 12 1/4 | 6 1/2 |
| W 12 × 50 | 12 1/4 | 8 1/8 |
| × 45 | 12 | 8 |
| × 40 | 12 | 8 |
| W 12 × 58 | 12 1/4 | 10 |
| × 53 | 12 | 10 |
| W 12 × 120 | 13 1/8 | 12 3/8 |
| × 106 | 12 7/8 | 12 1/4 |
| × 96 | 12 3/4 | 12 1/8 |
| × 87 | 12 1/2 | 12 1/8 |
| × 79 | 12 3/8 | 12 1/8 |
| × 72 | 12 1/4 | 12 |
| × 65 | 12 1/8 | 12 |
| W 14 × 26 | 13 7/8 | 5 |
| × 22 | 13 3/4 | 5 |
| W 14 × 38 | 14 1/8 | 6 3/4 |
| × 34 | 14 | 6 3/4 |
| × 30 | 13 7/8 | 6 3/4 |
| W 14 × 53 | 13 7/8 | 8 |
| × 48 | 13 3/4 | 8 |
| × 43 | 13 5/8 | 8 |
| W 14 × 82 | 14 1/4 | 10 1/8 |
| × 74 | 14 1/8 | 10 1/8 |
| × 68 | 14 | 10 |
| × 61 | 13 7/8 | 10 |
| W 16 × 31 | 15 7/8 | 5 1/2 |
| × 26 | 15 3/4 | 5 1/2 |
| W 16 × 57 | 16 3/8 | 7 1/8 |
| × 50 | 16 1/4 | 7 1/8 |
| × 45 | 16 1/8 | 7 |
| × 40 | 16 | 7 |
| × 36 | 15 7/8 | 7 |
| W 16 × 100 | 17 | 10 3/8 |
| × 89 | 16 3/4 | 10 3/8 |
| × 77 | 16 1/2 | 10 1/4 |
| × 67 | 16 3/8 | 10 1/4 |
| W 18 × 46 | 18 | 6 |
| × 40 | 17 7/8 | 6 |
| × 35 | 17 3/4 | 6 |
| W 18 × 71 | 18 1/2 | 7 5/8 |
| × 65 | 18 3/8 | 7 5/8 |
| × 60 | 18 1/4 | 7 1/2 |
| × 55 | 18 1/8 | 7 1/2 |
| × 50 | 18 | 7 1/2 |
| W 18 × 119 | 19 | 11 1/4 |
| x 106 | 18 3/4 | 11 1/4 |
| × 97 | 18 5/8 | 11 1/8 |
| × 86 | 18 3/8 | 11 1/8 |
| × 76 | 18 1/4 | 11 |
| W 21 × 57 | 21 | 6 1/2 |
| × 50 | 20 7/8 | 6 1/2 |
| × 44 | 20 5/8 | 6 1/2 |