L4X3-1/2X1/2 Dimensions & Weight
L4X3-1/2X1/2 is an unequal-leg steel angle with 4 in and 3-1/2 in legs and a 1/2 in thickness, weighing 11.9 lb per foot — a stock size for lintels, frames, bracing, and heavier connection material.
Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).
or start a free takeoff to count L4X3-1/2X1/2 on your drawing.
Weights for every AISC size, in Excel. All AISC sizes in Excel. Free with a Steelflo account.
L4X3-1/2X1/2 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Leg 1 | 4 in | 101.6 mm |
| Leg 2 | 3-1/2 in | 88.9 mm |
| Thickness | 1/2 in | 12.7 mm |
| Cross-section area (A)computed from weight and steel density | 3.5 in² | 22.6 cm² |
| Weight | 11.9 lb/ft | 17.7 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does L4X3-1/2X1/2 weigh and cost?
L4X3-1/2X1/2 weighs 11.9 lb per foot. At an example material price of $0.92/lb that is about $10.95 per foot. Set your quantity, length, and price to total your own run:
Material only, example pricing. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.
Pricing more than one size? Build a full member list in the free calculator →
Tallying by hand?
Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).
Stop counting L4X3-1/2X1/2s by hand.
Upload your drawing set and SteelFlo puts a box on each steel label it finds, including L4X3-1/2X1/2, ready to review and export as a bill of materials.
Related sizes
- L4X3-1/2X1/46.2 lb/ft
- L4X3-1/2X5/167.7 lb/ft
- L4X3-1/2X3/89.1 lb/ft
- L6X3-1/2X3/811.7 lb/ft
- L5X5X3/812.3 lb/ft
- L6X4X3/812.3 lb/ft
- L6X6X5/1612.4 lb/ft
- L4X4X7/1611.3 lb/ft
Comparing sizes? Keep them all in one sheet.
Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).
Found your size? Now count it on the drawing.
Upload your PDF and SteelFlo boxes the steel labels it finds, so you get a member list instead of a manual tally of L4X3-1/2X1/2 and its neighbors.
Deeper reading: Steel Angle Sizes Chart · How to calculate steel weight