Jacking Up A Deck – Jacking A Porch up

Updated 1-27-23

Phil shows you how to use a simplex jack and lag bolts to jack up a deck.

00:00 Fixing a little problem that the deck has
00:18 Old simplex jack, mechanical jack we use for lighter weights
00:56 How the simplex mechanical jack works
03:00 Anytime you’re jacking up things you want to keep yourself level
06:05 Checking to see if the deck is level
07:10 Securing the deck for the lag bolts
08:00 Why bottom steps break first
08:53 Checking both sides, securing temporarily with screws
09:51 We wanted to do more
10:30 Setting the lag bolts
11:00 Needs support in the middle, but we do what the customer wants
11:12 When working for women
13:22 End of the project. What we want to do.

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Ok this morning we’re fixing a little problem that this deck is. This area right here should be here, makes this all out of level and we’ve got to bring it up. And we’ve got some jacks. I got one old simplex jack. It’s a mechanical jack, and we’ll jack it up and then we’ll put lag bolts through to hold in place and do something a little bit better than this.

And we’ll probably look around and see if that area needs it while we’re at it. Even though they didn’t ask me to probably do it, just this is a good friend. Not just a customer. So it’s about the top of this, supposed to be the top of this. So seven half inches out of level. That’s what we’re fixing.

Today, that’s a simplex jack. What you can do is you can lift heavier things, but it’s generally not something I use for multi-ton. It will go to that mechanical jack. You can use the, the longer side and you can use the shorter side. It a, when you want to go up, you pull this little handle right here up, then it goes up both here and here. And it’s driven with the gears inside. So we’re going up, we’re going down now. That’s what we’re doing today with this.

Let’s keep an eye on that.

“Na, it…”

Plus that.

“Yeah, feels like I’m taking out the whole front. These things can’t hold that much weight. Over there is the only two I see. I’m lifting the whole. So.”


“Should be separate now.”

Dig it out til it’s level, where you won’t be sitting tilted.


Not that we have that much weight, it’s just good habit. And that 2 by 10, or whatever it is, right there beside you can be knocked out. I don’t think that’s doing anything. Should be able to go on up.


Keep an eye on it, don’t let it move on you. I’ll get some three-inch screws. Get it up where it needs to go. Right now. I can’t find my three-inch screws.

“It’s too high. And that’s their length. So I think we got to go higher going down.”

I think it was flush, right there.

“Yeah, we’re still a little bit out the level.”

It looks like somebody’s been messing with it. Staircase is down, need to fix that. Put the screws through one on this end the screw gun is right there to your right at that 4×4, and put two of them in. You don’t have to sink them all the way, just as long as they hold. Then they got to the bag bolts. No, no. Underneath, underneath.

“Oh, from behind.”

No, you can, that’s fine. All right, let’s let it down and see what happens. The screws will hold some, but some 250 lb people walking on that stepping. The thing about people, they’re overweight. They say when they start going down steps, they step really hard. I have a place that has like 15 steps down and the bottom steps are the ones that get the most impact.

You sit there and watch them come down. The more comfortable they get with going down that staircase, the more they go omh, omh. The first ones are like, oh got to be careful, use them that way. And that’s the bottom ones. And they’ve literally broke the bottom steps. Those are people that are probably 100 pounds overweight, maybe more. They just relax. Hey I’m going down the steps.

Boom, boom yes, impact one step you can see it. Can you get underneath that one? What about further back over this way?


We might want to do a Tick Tock on that jack. What’s a matter?

“There’s something too much to do.”

Go on up until that’s even with the. That’s even there. All right, let’s put the level in and see what we’re looking like. This was really warpped up when I moved it some years ago, oh, eight or nine miles away, the she wanted me to leave it pretty much like it was. I wanted to do so much more. So that’s sitting high.

This needs to go up on the far side. So I’m okay with that. I’ll raise it up. Let’s get this side fastened we’ll break. We’ll take a break from the camera.

We’ll put these lag bolts with the washer on and it’s going to be driven by deep impact on electric impact. Now they’re making battery powered impacts pretty strong. They were they can take a semi-trailers off, but I don’t have anything that expensive. This is electric and you get this at Harbor Freight. So we’re going to put this in. We’re going to secure one on each side and then one in the middle. And that’ll hold it all together, keep it from doing that, hopefully, and it’s really what it needs, is more supports in the middle.

But that is not something this woman told me to do. And this is not the only woman that I work for that I do what they say I suggest. And I don’t do that very strongly. I just suggest.

“There. Wooh, ah… Here’s a 4×4. All right.

Now, you need to crawl up here.


You got all the bolts on you?

“Yay, now there too. There’s the string that I needed.”

Got the lag bolts in where it needs to be jacking it up with these simplex jack and the impact put five inch lag bolts in and it’s pretty level work, walks strong. I mean I would like to put more supports on that deck, but… And this one. But I don’t do things unless she tells me to. So we’ve already done above and beyond what she actually asked to do, and that’s the end of that little project.

I’m sure there’ll be other projects, so I can see several on this house. I think she want me to jack up the inside of the house in the hallway, but she locked the door so I can’t get in there. I mean, I can get in there, but I can’t get in there legally, not that I’m an illegal type of person.

I can just take the doors off, but she needs to put fascia on there and some drip edge because it’s wicking back up to the roof. And I told her it would, a long time ago. If you look on the other side of that porch, you can see how far it’s rotting out the OSB on the side. That’s why you want to put drip edge on there.

“On that back there?”

Well, it’s been such a good. So, see if there’s another tool there.

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