Hey everybody, this video is going to be about using a laser level. We'll begin here. So I'm just going to establish a flat grade using my laser level and I just want to show you guys that don't normally use a laser level or whoever, never use a laser level, just how that's done. So this is a self leveling laser. Now what that means is you just need to push the button, turn the on button and the laser will self level itself. As long as the base, which is that tripod I have, is somewhat level. It can't be too far out of level but you just push that button, you see I pushed the on button, now it's that green light is flashing and as soon as the level is, the laser is level it'll start spinning like that. So now we're good to go. Now that laser, there's my grade stick. So I have a grade stick with a yard stick on it to have some numbers that I can go by. So that laser right now is spinning a red beam that's perfectly level all the way around that room, 360 degrees. Now what I'm doing right now is I'm using the receiver to intercept that laser beam or to find that laser beam. And what that receiver does is it beeps, it beeps fast if I need to move it down to find the beam and it beeps slow if I need to move it up to find the beam. Once it finds that laser beam, it has a solid beat to it. So the homeowner gave me a spot to go from and that was the top of that cell like you just saw. That's what the laser beam was reading on the top of that cell, about 21 and a half right there. And my grade that I want to establish is 6 and a half inches lower than that. So I'm moving it to 28. And what that is, that's going to be the top of my concrete floor. To an order for me to lower the grade, I had to move the receiver up on the stick. That makes sense. So now what I'm doing is I'm going to go in the corner and I'm going to make a mark with my top of my concrete floor is using that laser beam and the receiver. And the receiver is going to tell me if I'm too high or too low by the beeps. And then once it's perfect, it's going to beat solid and I can put my mark right there. So that's going to be the top of my concrete floor when I get ready to pour the concrete in here. So now I can go all the way around the room. You can see right there, that's the mark right there. I can go all the way around the room and set my grade for my concrete floor. That's going to be perfectly level. So I like to go in the middles, I like to go in each corner. And then normally what we'll do is we'll snap a chalk line once I have all these marks put in place. And that'll give me a nice level grade all the way around this room when you go to pour the concrete. So each time I go to one of these spots to mark the wall, I either have to, you know, I just set it in place. And then the receiver tells me if I even move to stick down a little bit or up a little bit. And then all I'm doing is I'm waiting to hear that solid beep. And as soon as I get that solid beep, then I make a mark. So that's basically how you use a self-level laser to set a nice level grade on just about anything that you want to use it for. So I mean, I use it every day for my concrete floors. So I come in here before we pour and I get my grade all established. And then once I get my grade established, then I can check the level of the sub-base by moving the receiver. And you'll see that in a second here. And that'll tell me just how effective the floor is going to be. Now we were we were shooting for a orange that concrete floor in here. So we'll see just in a minute just what that's going to be. But I mean, that all depends on how good the excavator or whoever did the sub-base grading. How good they did their job. And I'll be able to check that. And then that's how I figure my yardage for my concrete. If I just assume that they did a good job grading this, and I go by what they tell me, and they tell me, yeah, it's for inches and then I order concrete. And it's not enough. You know, then I'm in trouble. So I come to every job. So here I am. I'm checking the sub-base level right there. So I'm moving that receiver up. And I have my numbers and my grade stick to go by. And then I can figure out what the thickness is right there in that one spot. Depending on how far I move it up. So that one spot ended up in the five and a half inches. And now I'll do the same thing over here. So if you can remember, 28 on that grade stick was top of concrete floor. And now I'm moving it to wherever I need to figure out the sub-base. So it could be 33 and a 33 and a half. It's supposed to be 32 and then before a 4 inches thick. So 28, the different between 28 and 32 4 inches. But I've got a lot of 33s, 33 and a halfs. I mean, it's 6 inches in this spot. What I'm doing right now is I'm telling the guy here, we're probably thicker than 4 inches. We're five and a half over there, five and a quarter here. I thought I'd get a half lighter here. I thought in the middle it was more and more. The way I have to set up is, you know, my price is based on a 4 inch thick half floor. So any amount of concrete over 4 inches, you know, any amount of yardage over 4 inches, and they have to pay extra for that. When I got all done shooting my grades here, this floor figured around 16 to half, 17 yards at 4 inches. Yeah, it's going to be a lot better. And I'll show you the pours coming up on the next video, but they ended up figuring about 21 to half, 22 yards because of how thick the sub-base made this thing. They just put enough material there and then before they put the poly over, so they end up having to pay for a next 30 or 40, 4 and a half, five yards of concrete. I like mucking it on top of that poly when I can. Then I can go back and get an average and go from there. So now I'm just checking the top of those piers just to see where the floor comes in with regards to those piers. So if you like this video, guys, go ahead down there and hit the like button. I appreciate it. Don't forget to subscribe yet, my channel's all about concrete stuff, especially concrete flatwork. So go ahead down there and hit subscribe. Thanks for watching and we'll see you on the next video.