You can use ^ and %, but must enter them in the _Alphanumeric variable twice as ^^ or %%. However, if you want to use the result (_RndAlphaNum) later in the batch file (other than Echoing to the screen), they might require special handling. You can even use a space, as long as it's not the last character in the string.
23 inches (59cm) is the minimum distance required for a chair behind a desk. This would fit a modest sized chair. For more comfort and to accommodate a bigger office chair increase the chair clearance to 30 inches (76cm). Office Chair tips. Swivel chairs make it easier to get in and out from behind your desk, especially if the space is a bit tight.
Measure back width of chair x back height of chair x 2 (front and back) and add 2 inches to these measurements for hem/finished edge allowance. 1  The back width of my chair was 16â, the back height â 24â. 2  I added 2 inches to the 16â width. 3  I doubled the 24â height to 48â and added 2 inches.