Structural Shapes
"I"-Beam - Standard
I-Beam (American Standard)
S-Shapes ASTM-36
Sizes and products are for reference only. We do not carry or supply all sizes or items shown.
Please contact us to inquire about product availability.
| Designation Depth in inches x weight Per Ft. Lbs |
Weight Per Ft. (Lbs.) |
Depth Section (inches) |
Width Flange (inches) |
Flange Thickness (average, inches) |
Web Thickness (inches) |
Area of Section (inches2) |
Section Modulus Sx In.3 |
**Surface Area Foot of Length2 |
|---|---|---|---|---|---|---|---|---|
| S3 x (3x2-3/8) |
5.7 | *3 | 2-3/8 | 1/4 | 3/16 | 1.67 | 1.68 | 1.16 |
| 7.5 | 3 | 2-1/2 | 1/4 | 3/8 | 2.21 | 1.95 | 1.19 | |
| S4 x (4x2-5/8) |
7.7 | 4 | 2-5/8 | 5/16 | 3/16 | 2.26 | 3.04 | 1.42 |
| 9.5 | 4 | 2-3/4 | 5/16 | 5/16 | 2.79 | 3.39 | 1.44 | |
| S5 x (5x3) |
10.00 | 5 | 3 | 5/16 | 3/16 | 2.94 | 4.92 | 1.69 |
| 14.75 | 5 | 3-1/4 | 5/16 | 1/2 | 4.34 | 6.09 | 1.85 | |
| S6 x (6x3-3/8) |
12.50 | 6 | 3-3/8 | 3/8 | 1/4 | 3.67 | 7.37 | 1.95 |
| 17.50 | 6 | 3-5/8 | 3/8 | 7/16 | 5.07 | 8.77 | 1.99 | |
| S7 x (7x3-5/8) |
15 | 7 | 3-5/8 | 3/8 | 1/4 | 4.50 | 10.50 | 2.21 |
| 20.0 | 7 | 3-7/8 | 3/8 | 7/16 | 5.88 | 12.10 | 2.38 | |
| S8 x (8x4) |
18.4 | 8 | 4 | 7/16 | 1/4 | 5.41 | 14.40 | 2.48 |
| 23.0 | 8 | 4-1/8 | 7/16 | 7/16 | 6.77 | 16.20 | 2.50 | |
| S10 x (10x4-5/8) |
25.4 | 10 | 4-5/8 | 1/2 | 5/16 | 7.46 | 24.70 | 3.00 |
| 35.0 | 10 | 5 | 1/2 | 5/8 | 10.30 | 29.40 | 3.05 | |
| S12 x (12x5) |
31.8 | 12 | 5 | 9/16 | 3/8 | 9.35 | 36.40 | 3.43 |
| 35.0 | 12 | 5-1/8 | 9/16 | 7/16 | 10.30 | 38.20 | 3.44 | |
| S12 x (12x5-1/4) |
40.8 | 12 | 5-1/4 | 11/16 | 7/16 | 12.00 | 45.40 | 3.47 |
| 50.0 | 12 | 5-1/2 | 11/16 | 11/16 | 14.70 | 50.80 | 3.51 | |
| S15 x (15x5-1/4) |
42.9 | 15 | 5-1/2 | 5/8 | 7/16 | 12.60 | 59.50 | 4.06 |
| 50.0 | 15 | 5-5/8 | 5/8 | 9/16 | 14.70 | 64.80 | 4.09 | |
| 518 x (18x6) |
54.7 | 18 | 6 | 11/16 | 7/16 | 16.10 | 89.40 | 4.70 |
| 70.0 | 18 | 6-1/4 | 11/16 | 11/16 | 20.60 | 103.00 | 4.74 | |
| S20 x (20x6-1/4) |
66.0 | 20 | 6-1/4 | 13/16 | 1/2 | 19.40 | 119.00 | 5.10 |
| 75.0 | 20 | 6-3/8 | 13/16 | 5/8 | 22.00 | 128.00 | 5.12 | |
| S20 x (20x7) |
86.0 | 20-1/4 | 7 | 15/16 | 11/16 | 25.30 | 155.0 | 5.38 |
| 96.0 | 20-1/4 | 7-1/4 | 15/16 | 13/16 | 28.20 | 165.00 | 5.40 | |
| S24 x (24x7) |
80.0 | 24 | 7 | 7/8 | 1/2 | 23.50 | 175.00 | 6.00 |
| 90.0 | 24 | 7-1/8 | 7/8 | 5/8 | 26.50 | 187.00 | 6.02 | |
| 100.0 | 24 | 7-1/4 | 7/8 | 3/4 | 29.30 | 199.00 | 6.04 | |
| S24 x (24x7-7/8) |
106.00 | 24-1/2 | 7-7/8 | 1-1/8 | 5/8 | 31.20 | 240.00 | 6.33 |
| 121.00 | 24-1/2 | 8 | 1-1/8 | 13/16 | 35.60 | 258.00 | 6.36 |
* APPROXIMATE DIMENSIONS FOR DETAILING ONLY
The rounding off of decimal dimensions to fractions can lead to an accumulation of differences. (See A.I.S.C. Manual)
** For painting and sandblasting surface area (all around) square foot (Ft2) of length.
Sizes and products are for reference only. We do not carry or supply all sizes or items shown.
Please contact us to confirm product availability.