HSS3-1/2X3-1/2X3/8 Dimensions & Weight
HSS3-1/2X3-1/2X3/8 is a square hollow structural section, 3.5 x 3.5 in nominal outside with a 3/8 in nominal wall (0.349 in design wall per AISC), at 14.72 lb per foot — commonly specified for handrail posts, equipment frames, and miscellaneous metals.
Count every HSS3-1/2X3-1/2X3/8 on your drawing — upload a PDF, get the member list. 3 free takeoffs, no card.
Count every HSS3-1/2X3-1/2X3/8 on your drawing. Count HSS3-1/2X3-1/2X3/8 on your drawing. 3 free takeoffs, no card.
Start a free takeoffHSS3-1/2X3-1/2X3/8 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Outside depth (nominal) | 3.5 in | 88.9 mm |
| Outside width (nominal) | 3.5 in | 88.9 mm |
| Wall thickness (nominal) | 3/8 in (0.375) | 9.5 mm |
| Design wall thickness0.93 x nominal, per AISC for A500 | 0.35 in | 8.9 mm |
| Cross-section area (A)computed from weight and steel density | 4.33 in² | 27.9 cm² |
| Weight | 14.72 lb/ft | 21.9 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does HSS3-1/2X3-1/2X3/8 weigh and cost?
HSS3-1/2X3-1/2X3/8 weighs 14.72 lb per foot. At an example material price of $0.92/lb that is about $13.54 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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Deeper reading: HSS Sizes: Square & Rectangular Tube Guide · How to calculate steel weight