Ikea Alex riser with cover

I have my Alex desk unfortunately right over an HVAC vent. I'm a little tall in the torso also so this helps my desk sit a bit higher. Takes a standard screw length. Crazy glue the cover and two clips together. There is a recess for this on the cover. For the front feet, clip the cover and two feet together then drill accordingly so they are properly spaced. 

If you are using Adils legs, there is a spacer here as well.