When you are retrofitting a 90-degree corner, the ErgoWise® Corner Diagonal Plate unit is needed to allow for proper use of a keyboard tray.

Once you have a corner diagonal unit, you will be able to retrofit a 22″ or 28″ arm mechanism and corner keyboard platform to your workstation. This corner diagonal unit adjusts to fit 1″- 2 ¼” thick work surfaces. The clamping design eliminates the need for spacers making installation easier.