Common context
Common project roles include truss chords and webs, braces, lintels, hangers, and built-up members around gusset plates or other connection material.
AISC v16.0 · 2L shape
2L4X4X7/16X3/8
2L4X4X7/16X3/8 weighs 22.6 lb/ft, has a listed dimension d of 4 in, a cross-sectional area of 6.6 in², and an x-axis elastic section modulus Sx of 3.46 in³. Open the full US customary property record or generate 2D, data, report, and 3D reference files locally in your browser.
Nominal profile
Units · inches
Building nominal profile…
- Weight
- 22.6 lb/ft
- Area
- 6.6 in²
- Listed dimension d
- 4 in
- Elastic Sx
- 3.46 in³
From designation to geometry
Reading the 2L4X4X7/16X3/8 record
The 2L designation represents a pair of angles, equal legs back to back, with 0.375 in listed separation. The record dimensions are d = 4 in, b = 4 in and t = 0.438 in. Preserve the complete spacing and arrangement identifier.
The published weight 22.6 lb/ft and area 6.6 in² already describe the pair. Do not multiply them by two again. A change in separation can change the listed axis properties while the pair's nominal weight remains unchanged.
Ix = 9.86 in⁴ and Iy = 21.6 in⁴ refer to the database x- and y-axes. Here Iy is numerically larger. Axis letters are labels, not a guarantee that x is always the larger axis. These are geometric properties, not allowable loads or complete member capacities.
Match the axis and dimension conventions to the figures in the AISC v16.0 workbook Readme. The profile above simplifies manufacturing geometry; its outline is not used to recalculate the published properties.
Worked quantity example
Nominal weight for 2L4X4X7/16X3/8
Assume 3 pieces, each 20 ft (6.096 m) long. This is a hypothetical quantity example, not a stock-length or lifting recommendation.
| Quantity | Calculation | Nominal pounds | Kilogram equivalent |
|---|---|---|---|
| One 20 ft piece | 20 ft × 22.6 lb/ft | 452 lb | 205.024 kg |
| 3 pieces | 3 × 452 lb | 1,356 lb | 615.071 kg |
Conversion: 1 lb = 0.45359237 kg; displayed results are rounded. Each piece here is one paired-angle member; the table weight already includes both angles. This multiplication excludes connection plates, bolts, weld metal, coatings, cutting allowances and actual material variation. Use the material takeoff for your own lengths and quantities.
Shape family context
What is a double-angle shape?
A 2L shape combines two angles with a defined orientation and separation. The pair may act as a built-up member, but its properties depend on the angle size, back-to-back arrangement, gap, connector pattern, and listed axis convention.
Learn how shape properties workDetailing watch
Preserve the database orientation and spacing identifier, then coordinate filler or gusset thickness, stitch connectors, outstanding legs, drainage, coating access, and built-up-member assumptions.
Portable reference files
Download 2L4X4X7/16X3/8 your way.
Every file is generated locally in your browser from the same nominal profile and AISC v16.0 reference record.
CAD, vector, and image
Use the profile in CAD, illustration, plotting, reports, or presentations.
Tables and portable data
Take a printable datasheet, spreadsheet, structured record, or plain-text table.
Extrude a nominal member
Enter a member length in inches. Mesh files are generated from the nominal reference profile.
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Dimensions & properties
2L4X4X7/16X3/8 reference data.
Values below are derived from the AISC Shapes Database v16.0 in US customary units. A dash indicates that a property is not applicable or not included for this family.
Nominal dimensions
- W Nominal weight
- 22.6 lb/ft
- A Area
- 6.6 in²
- d Depth / angle leg dimension d
- 4 in
- b HSS flat width / angle leg dimension b
- 4 in
- t Angle thickness
- 0.438 in
Centroid & detailing
- y Centroid y
- 1.15 in
- yp Plastic neutral axis y
- 0.413 in
X-axis properties
- Ix X-axis moment of inertia
- 9.86 in⁴
- Zx X-axis plastic section modulus
- 6.2 in³
- Sx X-axis elastic section modulus
- 3.46 in³
- rx X-axis radius of gyration
- 1.22 in
Y- and z-axis properties
- Iy Y-axis moment of inertia
- 21.6 in⁴
- Zy Y-axis plastic section modulus
- 8.83 in³
- Sy Y-axis elastic section modulus
- 5.16 in³
- ry Y-axis radius of gyration
- 1.81 in
Compare published reference values
2L4X4X7/16X3/8 alongside nearby 2L records
These records share the same nominal series, outside envelope or leg arrangement, depending on the family. Peers are ordered by absolute weight difference, then listed depth and designation. The table does not rank structural performance or approve a substitution.
| Record | Weight (lb/ft) | Listed dimension d (in) | Area (in²) | Ix (in⁴) | Iy (in⁴) |
|---|---|---|---|---|---|
| 2L4X4X7/16X3/8 (this record) | 22.6 | 4 | 6.6 | 9.86 | 21.6 |
| 2L4X4X7/16 | 22.6 | 4 | 6.6 | 9.86 | 18.6 |
| 2L4X4X7/16X3/4 | 22.6 | 4 | 6.6 | 9.86 | 25.4 |
Relative to 2L4X4X7/16X3/8, 2L4X4X7/16 changes nominal weight by 0 lb/ft, listed listed dimension d by 0 in, and area by 0 in². At the same hypothetical 20 ft length, the nominal weight difference is 0 lb.
Open these records in the full comparison tool
Compare the remaining dimensions, axis conventions, grade, availability and project requirements separately. Weight or section-property similarity does not establish matching connection geometry or member capacity.
Data is derived from the AISC Shapes Database v16.0, consistent with the AISC Steel Construction Manual, 16th Edition, 1st Printing. AISC advises professional verification before use in a specific application. The downloadable DXF is a nominal reference profile and may simplify rolled fillets, flange tapers, angle radii, HSS corner radii, and other manufacturing geometry. Verify all dimensions and suitability before design, detailing, ordering, or fabrication.
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