Check VESA first
Most arms expect common VESA patterns, but some monitors need an adapter. Confirm the mounting pattern before ordering.
Use the monitor's actual weight
The advertised screen size is less important than the monitor's weight without the original stand. Stay comfortably inside the arm's rated range.
Clamp vs grommet
A clamp is easy to install but needs a strong, compatible desk edge. Grommet mounting is cleaner when the desk has an appropriate hole.
Shortlist to check on Amazon.ca
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Ergotron LX Single Monitor Arm
A premium reference point with broad VESA support and a strong reputation for smooth adjustment.
HUANUO SS6 Single Monitor Arm
A lower-cost gas-spring arm for common 13–32 inch desk setups.
North Bayou F80 Monitor Arm
A budget-oriented option worth checking when monitor weight and VESA pattern are compatible.
Prices and availability can change. Product photos are illustrative; verify the exact model, colour and bundle on Amazon before ordering.
Send the exact device or setup and get a practical second opinion.