No doubt you are much more knowledgeable than I am, and most likely also, you have a lot more practice at doing it than I do. Having said that however, I can't see how that would work.

I bought an 86 year old house and gutted it to the studs. The floors were a mess, they were so uneven in every way and every spot. I had no idea what to do or how to fix it. My contractor messed me over and I was left to try and figure it out on my own. I have no carpentry skills whatsoever so I took to youtube and you were the first video I had found. It took me 5 weeks but my floor is 100% level and secure with your method. Thank you so much for sharing this!

Seems like it would be easier to just pull up the sub-floor, cut strips off 2x4s (or plywood) to the right level and secure them to the tops of the joists. Then lay the sub floor back on top of that. That way you have a level floor and no gap underneath. The gap is going to give you an echo when you walk across the floor unless you insulate it.

An easier way is to tack 2x4's to floor, then use a laser level (cheap one works great). Measure down marking the 2x4 every 16". Remove tacks. Put 2x4 on a saw horse, connect the dots, cut with circular saw or use a table saw. Screw back down to floor into floor joist. Make sure to use construction screws(strong), not sheet rock screws(can break).

Easier, quicker and a better job to rip up old subfloor, replace any joists that WILL need replacing, some will be floating, some will be rotten, the wall they were sitting on will have disappeared around the ends of some of them. You don’t have to pull the whole floor up, just start at one end and work your way out a sheet at a time.

I think that whole house may be a sleeper

Why don’t you just tie ropes from one end of the room to the other point and make sure the rope is level?

Literally nobody situation looks like this having the floor wide open is more than a convenience I think when people search for how to level the floor they have an existing floor

For anyone attempting this... don't forget a level has a human error factor when reading the bubble.... a laser is way better.

The music is too loud and distracting

Why didnt u fix the foundation first idk man i got the same situation my mom bought a second house but were not gonna do this were gonna start by shoring up the house best we can then fix the floor im thinkin u should have fixed the foundation first if u ant got a good foundation u dont have anything and u will have more problems in the future unless ur gonna sell the house but if they find out u could be in trouble but idk.

Your Sir, are a Miracle for me............I'm a single 65 year young (LOL) woman...........and have been beat'n my head against the wall, trying to figure out how to level an ajoining floor to a level one. Opening up an entry in 2 directions, I was left with this problem...........all I needed was the "screw demonstration" I knew I'd have to do just what you did with the rip'n of the boards to make it level. Thank you so much............this was definately a God send!!

What a beautifully done

Thank you! This is a great educational video!!! I’ve been contemplating trying to level an upstairs bedroom floor for 6 years:). Now I understand much better

I had to do the same in my old house for a 20x20 space. Very time consuming!

Your method worked well to level the floor in my 8' x 12' kitchen. The process was time consuming but relatively easy. Measure 3X, cut 1X is my new mantra.

Wow. Thank you so much for this video. Not too long. Not too short. Concise and to the point. Subscribed.

easy to follow explanations and tricks to realize a leveled floor like a pro thank you very much to share your knowledge with the public you are certainly helping.

ty for this video!! im redoing our floor and everything else and this is helping!!! i dont know what i'd do without youtube!!!!!!

Awesome video, really appreciate the use of basic tools that most of us amateurs have!