i need to raise a basement floor whats the best way to go?

Question

it is an area 10 x 30 feet i need 4" at one end and 7" at the other.whats the best and easiest way to do it without it costing a fortune

Answer 1

2X6's or 2X8's and level them out so that the floor is where you want it. Use 3/4" plywood for the flooring and then whatever finish you want to put over it. If you are worried about the moisture in the basement, then use concrete board and then tile over it. good luck.

Answer 2

I'm uncertain what the goal is here. If it is to waterproof the surface my preference would be drainage layer products such as plakton, and dryfloor. They provide a resin/plastic drainage layer and give you the ability to put untreated plywood a inch above the concrete with no worry about water damage no matter how wet the basement is. This is the correct way to add a finished floor to a potential wet area. If your floor is perfectly dry, you could apply the plywood directly to the floor. It will be a mold disaster if the basement gets wet. You will have the same problem if you put untreated studs on the cement floor. Roson paper isn't a vapor barrier. It is used to provide breathability for wood. In other words is used by people who use air leakage as a safeguard, but don't want wind blowing through a crack. It is a traditional technique that usually results in a house falling apart faster. If you want a vapor barrier you should use either roofing felt or plastic. Rosin paper should reserved for a temporary cover to prevent damage during construction. Or where vapor barriers are not wanted. Again I don't know exactly what your situation is so I can't give you an answer suited to your situation.

Answer 3

I have a similar dilemma and have determined that 2x6's will work, but my span is larger 20x 24, too long for a single 2x6. So my follow up question is which is the best method for attaching the 2x6's to the concrete and also if I need to use treated limber. Want make sure everything is up to code. Thanks for your help.