A scaffold coupler is a clamp used to connect two scaffold pipes (usually 48.3 mm steel tubes) at different angles to form a rigid scaffold structure.
🧰 Main Types of Scaffold Couplers & Their Uses
1 Right-Angle (Double) Coupler
Use:
Joins two tubes at 90°
Forms the main framework (standards to ledgers)
Common applications:
Vertical to horizontal connections
Load-bearing joints
2 Swivel Coupler
Use:
Connects tubes at any angle
Allows flexibility in complex or irregular structures
Common applications:
Diagonal bracing
Angled supports
3 Putlog (Single) Coupler
Use:
Connects a putlog to a ledger
One side fixed, one side open
Common applications:
Bricklaying scaffolds (light load only)