I just bought a new mobile and am ready to put in two new decks outside. I am using composite decking but because of the size of the decks and the expense of the materials (12x6 and 6x6) my friend suggested that he could build the foundation for the deck not using composite lumber. He suggested pretreated lumber but my question is why pretreated and not treated ?? What would suggest in my situation, I already have 3600.00 in composite decking and rails and although I am not want to do something cheap and wrong I just want to know the best way. Thanks so much, love your show (and you can come build my decks if you wish lol. I am in Roswell, New Mexico, Alien Town.
Also forgot to mention I am using ArmorPoxy Renew for the old part of a deck I have and the concrete slabs and am running out of money but still want things right and with little maintenance as I am not able to do this myself and have to rely on friends and handymen I pay.