HSS3-1/2X3-1/2X3/16 Dimensions & Weight
HSS3-1/2X3-1/2X3/16 is a square hollow structural section, 3.5 x 3.5 in nominal outside with a 3/16 in nominal wall (0.174 in design wall per AISC), at 8.15 lb per foot — commonly specified for handrail posts, equipment frames, and miscellaneous metals.
HSS3-1/2X3-1/2X3/16 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) | 3/16 in (0.188) | 4.8 mm |
| Design wall thickness0.93 x nominal, per AISC for A500 | 0.17 in | 4.4 mm |
| Cross-section area (A)computed from weight and steel density | 2.4 in² | 15.5 cm² |
| Weight | 8.15 lb/ft | 12.1 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does HSS3-1/2X3-1/2X3/16 weigh and cost?
HSS3-1/2X3-1/2X3/16 weighs 8.15 lb per foot. At an example material price of $0.92/lb that is about $7.50 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 →
Stop counting HSS3-1/2X3-1/2X3/16s by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every HSS3-1/2X3-1/2X3/16, on every page — ready to review and export as a bill of materials.
Related sizes
Deeper reading: HSS Sizes: Square & Rectangular Tube Guide · How to calculate steel weight