Stock Steel Sections
Square and All Profiles from SteelYard.com
- https://mysteelyard.com/product_info.php?cPath=42&products_id=11146&osCsid=jef9ut70h8t1dej0j9jrgmrvd6
- Technical drawings are not available. They are approximate - external corner radii of HSS are not accurate
U-Channel
- Metals Depot - [1]