Installing floors

were doing a floor job on my dads 74 duster right now, we have almost all of the floor out of the duster and currently cutting the new floor section out of a dart sport many people will tell you to brace the car a such but we did not nor have we ever when doing floors, we used a Blair cutting tool to remove the spot welds and are going to place sub from connectors into the car before we lay the new floor down, remember if your not doing a in show room detail car no one is ever going to see the floors so if you FUDGE somthing up who cares weld it and make it safe good luck