HSS4X4X3/8 Dimensions & Weight
HSS4X4X3/8 is a square hollow structural section, 4 x 4 in nominal outside with a 3/8 in nominal wall (0.349 in design wall per AISC), at 17.27 lb per foot — commonly specified for handrail posts, equipment frames, and miscellaneous metals.
HSS4X4X3/8 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Outside depth (nominal) | 4 in | 101.6 mm |
| Outside width (nominal) | 4 in | 101.6 mm |
| Wall thickness (nominal) | 3/8 in (0.375) | 9.5 mm |
| Design wall thickness0.93 x nominal, per AISC for A500 | 0.349 in | 8.9 mm |
| Cross-section area (A)computed from weight and steel density | 5.08 in² | 32.8 cm² |
| Weight | 17.27 lb/ft | 25.7 kg/m |
What does HSS4X4X3/8 weigh and cost?
HSS4X4X3/8 weighs 17.27 lb per foot. At an example material price of $0.92/lb that is about $15.89 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 HSS4X4X3/8s by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every HSS4X4X3/8, 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