This stand was the only one I found for the LoRan magnetic boards however I have the large magnetic board (12"x18") and this stand is obviously *not* intended to be used with the large board (even though it was the one recommended to me when I purchased the large board). Using it as designed, the large board would fall over constantly even if left completely alone (nothing jostling it).
I made some modifications which have allowed me to use the stand for my large board and it has not fallen over once since I modified it. First, I used some tape on the vertical loop that sits against the back of the board to bring the sides of that loop closer together to make the loop taller (using the board in landscape and it is still too tall for this stand).
Next I bent the tray of my board up a bit so it would fit within the tray of the stand. Then I drilled some holes just a bit further apart than the length of the tray on the stand. I threaded some string through the holes and around the stand. Be sure to file down the edges of the drilled holes to avoid cutting yourself.
Now I know not everyone is going to want to go through the trouble of these modifications. If that is the case for you then I suggest finding another stand or just get used to the large board falling off the stand 10x a day.
As for the standard size board and this stand, I do not have a standard size board so I cannot speak as to how well the stand works for that one.