S20X66 Dimensions & Weight
S20X66 is an AISC American Standard (S) beam with an actual depth of 20 in and a 6.3 in flange, weighing 66 lb per foot — commonly used for longer floor spans and transfer framing. It is the lightest of the 4 S20 sizes listed here.
S20X66 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 20 in | 508 mm |
| Flange width (bf) | 6.26 in | 158.9 mm |
| Cross-section area (A) | 19.4 in² | 125.2 cm² |
| Weight | 66 lb/ft | 98.2 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does S20X66 weigh and cost?
S20X66 weighs 66 lb per foot. At an example material price of $0.92/lb that is about $60.72 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