how to build a ddr pad/ ddr cabinet, ddr arcade cabinet, ddr pad dimensions

here are dimensions websites:

https://www.angelfire.com/d20/ddrhomepad/ 

https://www.angelfire.com/d20/ddrhomepad/printable.pdf

http://www.ddrfreak.com/phpBB2/viewtopic.php?t=59254

https://imgur.com/gallery/Ahi1F

https://www.youtube.com/watch?v=chnwAAM2KEo

https://www.reddit.com/r/DanceDanceRevolution/comments/7xn1kw/measurements/