Pouring A Concrete Slab For A New Garage (30' x 24') Form & Pour
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- Опубликовано: 27 сен 2024
- #pouringaconcreteslab #NewGarage #MikeDayConcrete
In this video I'm pouring a concrete slab for a new garage that's 30' x 24' x 6 inches thick. I'm going to show you how we form the slab with 2x6's, square the slab, and set the forms to grade using a self-leveling laser.
Once the forms are all set, we're pouring the concrete slab using 3000 psi concrete with fibermesh reinforcement. I also have wire mesh in the garage slab for reinforcement.
For more detailed instructions on forming, pouring, and troweling concrete slabs, check out my concrete slab course below or join The Concrete Underground where you'll learn all the skills and techniques I use working with concrete.
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Mike Day is the uncle I wish I would’ve had growing up.
Haha, thanks Nathan!
Mike Day.. The Concrete Teacher.. been watching for a while, he's a excellent
Thank you!
For those people concerned about the lack of chairs under the wire, remember this:
These ‘slab on grades’ (SOG) that they’re doing, have complete bearing on compacted soil. If this were an ‘elevated slab’, like a 2nd or 3rd floor etc, the requirement for the top and bottom rebar, are that they only be ¾” from the top of the slab and ¾” from the bottom (2 cm). The reinforcement is most effective the closer you can get it to the top or bottom surface. The course aggregate in the concrete just happens to be screened to ¾” (what a coincidence) so once some of the course agg gets under the wire, it can’t get all the way back down.
Nice explanation, thanks.
For this type of slab why wouldn’t you want the reinforcement in the bottom 1/3 of the slab?
@@Btown605 That’s exactly where it is.
A sketch would be helpful to explain the forces going on, but imagine a wooden beam. Draw a vertical row of 3 dots on the face of the beam. One dot ¾” from the top, one ¾” from the bottom and one in the middle. Then one inch horizontally away from those dots, draw 3 more dots spaced exactly the same. Then apply a downward force right between the rows. You would find the top 2 dots get closer together (compression) and the bottom 2 dots spread further apart (tension). These are the same 2 forces that will be applied to this concrete slab. Concrete does very well under compression by itself, so no top reinforcing is required. Concretes Achilles heel is tension, so that’s why the reinforcing is installed at the bottom.
Getting back to the beam, you would also notice that the spread between the 2 middle dots stays stationary. Proving that the middle is under neither tension nor compression. That is why engineers never mind holes being drilled thru the middle (to an extent, of course) of beams, joists or slabs. That’s also why you’ll never find very much steel in the middle of a concrete beam or slab. It’s all concentrated at the top and bottom bcz that’s where all the forces are happening. Reinforcing in the middle of a beam or a slab is useless.
@@psidvicious That clears all my doubts, thank you very much.
I was about to ask about the anchor bolts when you mentioned them right at the end. You guys are clearly professional grade. Seen other videos that seemingly know nothing about anchor bolts! The foundation guys gotta have a set of prints. One thing thats apparently not as common any more is setting a course of block around the perimeter to build off of- keeps the plate completely away from any water or shop fluids, etc. Great job - nice crew 👍
What a gravy job man! Looks great. I do commercial jobs and they can be so much work. This looks like a walk in the park for you guys! As some guys say... "Easy Money!".
Great video Mike. Keep them coming.
Love your videos been following you for about five months now, I'll be doing my own slab soon. keep up the great work, the pride and attention to detail are top-notch.
Going to try pouring a garage slab so I can work at home. Disabled gaining weight working on cars will get weight down for knee replacement
You have a good crew Mike. Like a well oiled machine. 👍
Thanks!
Great instructions for beginners like me. Thank you
Yes in a 24 x 47 Slap for back yard garage shop storage Area. Three car Garage bay doors. From yard porch 10 CEO slab. Drive ways 10 CEO on 2 and walk ways 4x20 and 3 x 20
Thanks for the video. More information about the gravel layer would be helpful.
Nice job Great tutorial very helpful! me and my two sons are going to try and pour a 21 x 21 garage slab inside 8 inch cinderblock walls with expansion joint all the way around the perimeter. i’m having a little anxiety about it. if there’s any pointers, you can give me that would be a big help.! I think my biggest challenge is I only have the two garage doors entering the garage and a man door on the back of the garage at the end of the side wall! I have poured little sidewalks and a little pads, but nothing more than that, and so I thought I would reach out to a professional to get some good tips and directions on having a a successful pour Thank you, Vincent.
I’m pretty handy. Watching videos to see if I can pour my own patio. 18x18 , thanks for the video.
Love your videos. I have been pouring concrete in NYC for almost 20 years. Trying to get into stamped concrete.
Thank you!
Ramsey Construction Likes your job.
Yes I plan on doing my own slabs man you are the best man.
Thanks Kevin!
Just by watching I'm looking to land a job
That screed machine looks so awesome it almost doesn't need bull float
Yeah I'm going to pour my own pad. I had two contractors come out. One contractor wanted to charge me 15,000 just to pour a pad and then I had another guy come out and he wants to charge me $4,000 just to set the pad but I'm thinking I can do it myself. It's a 16x29. I've been watching your videos. I think I can do this myself
Good job installing I have 17 years same work
The rebar and wire should be about 2 inch above stone grade. Just like a concrete lintel, the rebar is closer to the bottom for compressive strength.
Just had one poured exact size.
I’ve made more than enough money from the knowledge you have shared the least I can do is subscribe to your monthly subscription!!
Awesome, thank you!
I notice you did not put plastic down before the concrete went in. What would plastic do if anything if you use it? I wish the guy I helped watched this video. We had to pump the concrete on a cold day( about 25 degrees in the morning) the tubes had ice in them clogging up the concrete it took an hour to finally get the tube free. We had many problems but in the end the concrete was setting at the end and difficult to trowel. The concrete had excelerator in it and I’m wondering what was our problem? The slab was 30’ x 20’.
Your site was really neat, no crap getting in the way. Thank you for a great video. 👍👍👍
That Looks Great!
Thanks Shawn!
Awesome! I do concrete work in south tx
You guys do great work!!
Thanks Jason!
Looked Awesome!! Cool tools never seen power tools for concrete....
Awesome video thanks. QQ: New to this but wondering about the need for a footing. This looks to be a floating garage slab vs one with footing.
I’m going to do my own slab. 18wide by 27long.
yes i thinking of pouring a slab 30x30
Doing my own for a 24x30 metal shop.
I just did a slab for a 12x24 and it didn't quite turn out as good as I wanted but given the fact that me and my kids did it I can live with the few flaws it has. At least its perfectly square and flat, fairly smooth and just a few flaws in it so I can live with that. Definitely not a professional job lol.
I’m new to your channel but I really love it so far! Great info man!
Most excellent! Thank you!
When I come to America to visit my wife's family I'd love to do few days working with you. I'm from new Zealand/ Australia.
Looks good! We start our 40x90 pad next week for my new shop
We have to pour rat footings for our garages, always use 2x12s so we can pour a stem wall at same time.
Every town is different here, depends on the code enforcement officer as to what we do or don't do.
thanks for video. leaving comments to help algo
Plan on adding onto my driveway. 30x40
Hey Mike I want to pour a slab this week
Love your videos you guys are pros I did not like the power screed.i strugeld with it i pulled it slow but had a lot of chatter marks.
I love that topcon laser my favorite so far 👍
It is awesome isn't it Kevin.
And those prices I gave you on this contractors that was with me buying the concrete that was just them sitting the pad
I’ve been watching your videos. I want to pour a slab from my driveway to a shop building that is currently just a grass area. It is 55 by 25 feet. I thought of breaking this up into several pours so I don’t overload myself. What would be your recommendation on size of an area for a diy’er pour if I have 5 people with me to pour it.
Your videos have been awesome.
Best way to do a 24x24 slab with a small mixer and bag concrete? Cement truck access not possible...
Great instructions for the do it yourselfer.
Do you have a video explaining how to slope to a garage floor drain?
I am doing a 25’x25’ slab patio
Yeah thinking of doing a slab
What size Robert
You said your team doesn't do the foundation work. You come in after the fact and just lay the cement... Any reason why?
I'm going to pour a very small slab for my 36" grill, how can I incorporate a lip for a wheel stop? I have never done concrete work before.
I'm jealous that I don't know Mike Day.
I am curious. If a jutterbug is not used the agregate will not be pushed down and I was wondering if this might cause spauling in the winter time when temperatures are below freezing.
When my 24x30 garage slab was poured 20 years ago, he dug a trench around the permitter and another down the center. He installed a re-bar cage in the trenches. Is this not necessary?
Garages there dont need footings or inspections or maybe its just a canopy carport. Even then here in California we have to inspect everything. Garage slabs have to have stem walls and footings.
I’m going to try doing my backyard, but I want it look like flat rock pattern.
Yes I poured concrete when I was younger you know as a helper I've helped do walls and and slabs and sidewalks and I just can't remember do I need a special grade of cement for a garage which I'm going to park vehicles in for strength it's 4 in enough can you make 4 inch just as strong as our stronger than a 6 in and when you put your 6x6 steel wire mesh and instead of rebar do you put like a little spacer on it so it'll be like in the center of the cement when it's poured and not laying right on the ground it have more structural significance if about the center of the poor wouldn't it and can you just brush finish that slab you don't have to have it smooth and you sealer and do you need a moisture barrier I hope that's not too many questions please let me know something thank you thank you very much
thinking of doing my own garage unsure if on a slab to save money only
Good job, Mike, I do concrete work here in Seattle wa, we do foundations slabs steps driveways and more
@Mike O’Connell I can tell you’re a miserable person by all your negative replies. I’ll pray for you.
Nice video! But you missed the part how you lead down the Metal wires ? Under the contract?
good job
Thank you! Cheers!
I am going to concreate a 15x15 garage floor. How do I get the ground ready to and level to concrete? Do I just dig up the ground? Do I use sand and gravel ?
Is it not necessary to install a stone base under the slab for expansion? How does the soil not freeze and heave the slab? In Pa, a much warmer climate we are required to use stone base. I'm confused. Thx Mike
1000 % harder than it looks. I am pretty good.
I have to pour a slab patio against a house, do I need to put board on the house to screed off of? How do I do this without leaving a board between the house and the porch?
Where is the gravel for a strong foundation? Did I miss that part?
It was gravel under the slab.
I always sample the base for a slab to find its stability. If you are pouring next to a house or an area by house that has a ground pitch towards the house you may have some very wet ground which is unstable so i compact in a couple yards of class 5 crushed limestone for a good base. Some soils are naturally good or house was back filled with stable soil a base like a rocky clay and sand. So if you dont see yellow rock it doesnt mean the soil wont suffice.
How u know he ain't using a road base material. I'm sure he ain't posting videos of him pouring on plane dirt lol. This ain't his first rodeo
Fantastic ! from CLE
Hey Mike, I appreciate your videos. Hypothetically would you take a job helping pour and form only? Just come for the day and help professionally pour, smooth, and finish? Thanks
Ryan, we do that all the time for other foundation contractors.
Any slope toward the door?
Are there any regulations about building a garage slab over an existing sewer line running through the property. For instance adding a garage slab spanning the width of a back yard with the sewer line running out the back of an existing home out under the slab and garage.
Should there be a footing for the building ?
What a great share, MD - I'm readying to start a project just like this and your expertise is immensely appreciated. Any chance you can recommend slabbers in GA, TN, and FL, please feel free to recommend. It can be a tough landscape out there to find someone as meticulous as you and your team so, I like to do my research before hiring or even considering a DIY project like this. Good things to you & yours!
i am thinking about doing my own slab size 32x20. how deep should the gravel be before you apply the concrete?
What if we don’t have a JACKSSS laser?
loved the video but disappointed you left out the rebar portion.....
What was the water consistency of this how much slump?
Good Afternoon, I plan on pouring a concrete patio and i currently have a sand (fill dirt) base, do I need to pack the sand, add a gravel layer, and pack again to complete the base preparation?
I’m doing my own slab learning off your videos I’ll ask questions if I need additional help
Cool, thanks
Can I do this with out a laser
I had a 24X30 garage slab poured on 05/13/21. Highly recommended concrete guy. I was impressed with everything. They pulled stumps, leveled, put forms in, sub-base, and put plastic down before rebar, and poured a 6" slab and concrete at 4000psi. They said they didn't put expansion joints in because it wasn't big enough to need it. Just wanted your thoughts on expansion joints.
Hi Mike, very nice and informative videos. Thanks so much!
Question:
I’m about to prepare a 40x40 feet slab ( under roof) in south Florida. It’s under a new home on stilts, in order to have a cleaner surface for my ground floor. The home has concrete stilts. Each of the stilts has its own concrete foundation below grade. There is about 2 feet of sand that was poured over the foundation.
- My question is, can I pour my 4 in concrete directly onto the sand? Of course I’ll be using rebar for stability.
- Also, should I divide the surface in several smaller sections, or can I pour it all at once?
- Last question, is there any specific concrete if I want a polished final surface?
Thanks for your input
Is gravel not necessary?
5 chutes is ok?
Is this course free I’m just a labourer now at Thomas concrete finishing Ltd but I’d love to know what these finishers know etc..
I’m wanting to pour my own slab, the issue I’m having is how to order the concrete, how to get it in my backyard where I don’t have to mix it myself, and how can I get help if I have no friends 😂
Mike! great job as always, I’ve been watching your videos and I noticed that you guys don’t usually protect exposed surface like on this video the siding was unprotected and I’m sure you guys go back and clean it up but plastic would save you some time and money, just my opinion
Hey Mike, I noticed you guys pour slabs on whatever aggregate you got there on grade.....what about frost? What’s the base your pouring on?
howany yards of concrete did this slab take
I'm curious, this is a fairly large slab and it is for a detached garage so I'm curious why there are no footers? Although local codes will obviously vary, if you are building walls and a roof, why don't you need footers?
I am thinking about doing my own slab and garage. What tools do I need to do concrete?
I'm doing a slab same size
No moisture barrier??
Do I have to dig a footing for my slab at 5 in for my garage
Do I need expansion boards for 25 x 25 patio to pool.??
I have a question, how much it costs in total in your area? Thanks,
DID YOU CONSIDER THE FROST LINE WHEN PURING THIS? I THOUGHT YOU'D HAVE TO POUR FOOTINGS BELOW IT. CAN EXPLAIN WHY NOT?
Do I need a permit to build something like this ?
How many yards of cocreate was that oh never mind
I just heard
Hi Mike, I know this video is a year old or so but I'm hoping to get some advice on how to make a nice garage floor for my my mother. You mentioned a course for learning this stuff. I'll look for that. If you're still making videos and helping people could you give me a shout back and I may have some questions for you
Hi Aaron. I've got a concrete slab course, should find it in the description of my videos.
How much would a slab like that cost?
I had a 25 x 30 and after 3months I have a crack all away across it what can I do. Oh I had it done for me.
How many yards of concrete was this?