HEy everyone, ive decided im going to build a rack before the spring is here. But im not sure what is the best way to do it, ive seen sooo many different styles os rack on here and on youtube that i need a bit of expert advice.

Im thinking of just buying a shelf from like walmart or canadian tire, but im also thinking custom made myself will be much easier and will fit better. I cam make the shelf no problem its just how can i run the heating on it properlly. Ive been told flexwatt but i dont want to have 1 plug per shelf then how would i run all the plugs into 1 thermostat? Is there a way i can run them in a series off one plug, the demo man for his product was a morron and didnt stay on task and showed the simplest instructions which didnt need 8ms and showed opposite of what ive been told.