M5X18.9 Dimensions & Weight
M5X18.9 is an AISC miscellaneous (M) beam with a nominal depth of 5 in, weighing 18.9 lb per foot — commonly used for lintels, trimmers, and light framing.
M5X18.9 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Nominal depthfrom the designation | 5 in | 127 mm |
| Cross-section area (A)computed from weight and steel density | 5.55 in² | 35.8 cm² |
| Weight | 18.9 lb/ft | 28.1 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does M5X18.9 weigh and cost?
M5X18.9 weighs 18.9 lb per foot. At an example material price of $0.92/lb that is about $17.39 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.
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Related sizes
Deeper reading: AISC Shape Database Guide · How to calculate steel weight