Angle Iron Weight Calculator: Quick & Easy Steel Estimation Tool
Estimate angle-iron weight in seconds: fill in leg sizes, length, thickness and material density, then hit “Calculate.” The tool multiplies each leg’s volume by the density and sums them—standard steel density is 0.284 lb/in³ (MatWeb, 2023). Ideal for quick take-offs and load checks.
Angle Iron Weight Calculator
The weight of the angle iron is: lbs
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How to use the tool
Width (W, in): Enter the shorter leg. Examples: 1.75 in, 4.00 in
Height (H, in): Enter the longer leg. Examples: 2.50 in, 6.00 in
Length (L, in): Overall bar length. Examples: 36 in, 144 in
Thickness (T, in): Wall thickness as a decimal. Examples: 0.125 in, 0.375 in
Density (D, lb/in³): Keep 0.284 for carbon steel or swap 0.098 for 6061-T6 aluminium.
Formula used
$$\text{Weight}= (W rac L rac T rac D) + (H rac L rac T rac D)$$
Example calculation
Given W = 4 in, H = 6 in, L = 144 in, T = 0.375 in, D = 0.284 lb/in³:
Structural analysis requires exact leg sizes; unequal angles shift centroid and load paths (AISC Design Guide 9, 2019).
Does corrosion change weight?
Rust growth can reduce net section by 1 – 3 % annually in marine settings (Corrosion Cost Report, FHWA, 2019). Adjust thickness to model long-term loss.
Any safety factor to add?
Engineers typically apply a 1.5–2.0 load factor to account for fabrication tolerance and dynamic effects (ASD/LRFD Manual, AISC 2016).
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