Related Clues:
- Certain construction beam
- Bridge beam
- Rolled steel joist
- Girder type
- Steel grating component
- Load-bearing piece
- Strong structural support
- Letter-shaped beam
- Letter-shaped skyscraper support
- Letter-shaped part of a grate
- Certain girder
- Letter-shaped building support
- Hancock Building supporter
- Letter-shaped support
- Letter-shaped structural piece