Related Clues:

• Right-angle shape letters
• Ninety-degree pipe joints
• Corner shapes
• "Hello" has two
• Main house-to-barn connections
• Some brackets
• Plumbing bends
• Wings of buildings
• Wings that don't flap
• Many additions to buildings
• Right-angled additions to buildings
• Plumber's right-angled joints
• Old lengths found in Russell Street
• Some construction extensions
• Building adjuncts