Unistrut Trolley: A Better Approach to Overhead Mobility
Make Sliding Barn Doors Using Skateboard Wheels : 7 Steps (with Pictures) - Instructables
Heavy Duty Barn Door Hardware I-Beam Trolley | Rustica
2PCS YUEBM Track Roller Wheels Accessory Parts of The Beam Trolley System Used with Box Rail Strut Channel to Mount Heavy Barn or Shed Sliding Doors: Amazon.com: Industrial & Scientific
Make Sliding Barn Doors Using Skateboard Wheels | Barn doors sliding, Diy sliding barn door, Diy barn door hardware
Trolleys & Trolley Hangers (1-5/8")
How to make strut-channel (Unistrut) trolleys from old door hinges - YouTube
Amazon.com: 2Pcs 6 Wheel Trolley Assembly Rollers Six Bearing Trolley Assembly for unistrut 1-5/8" Wide and All 1-5/8" or Taller Strut Channel : Industrial & Scientific
Amazon.com: UNISTRUT Genuine P2950-EG 4 Wheel Trolley Assembly for use with P1000, P1001, P5000, P5001, P5500, P5501 and All 1-5/8" or Taller Strut Channel : Industrial & Scientific