Sure is - i work for a removal company so have a endless supply of heavy duty boxes that i open flat on the floor, Makes kneeling a bit softer and when they get too dirty i just lay new one down. Saves cleaning oil and grease off the floor all the time
Man, I thought me and my dad were the only ones that did that. My whole family picks on us because we put cardboard under everything. My dad goes alittle over board though. His whole garage is cardboard and carpets.