1. RV Leveling Blocks
  2. Ultra-Fab Products
  3. 8-1/4L x 8-1/4W Inch
  4. 4 Blocks
  5. Stackable Blocks
  6. Blue
Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 4

Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 4

Item # UF48-979050
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Retail:$44.23
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RV Leveling Blocks
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Shipping Weight: 4 lbs
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Interlocking blocks stack to different heights and can be positioned beneath jacks, stabilizers or RV wheels to add just enough lift to level your rig. Lowest Prices for the best rv leveling blocks from Ultra-Fab Products. Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 4 part number UF48-979050 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (121)
  • Q & A (4)
  • Videos (2)
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Ultra-Fab Products RV Leveling Blocks - UF48-979050

  • Ultra-Fab Products
  • 8-1/4L x 8-1/4W Inch
  • 4 Blocks
  • Stackable Blocks
  • Blue

Interlocking blocks stack to different heights and can be positioned beneath jacks, stabilizers or RV wheels to add just enough lift to level your rig.


Features:

  • Stackable blocks provide extra lift to level your trailer or motor home
    • Position beneath jacks, stabilizers or trailer wheels
  • Interlocking design guarantees no shifting or collapsing once stacked
    • Stack straight up for extra height
    • Stagger blocks to create a ramp so you can easily drive up
  • Durable plastic construction
  • Storage case with integrated carrying handle included


Specs:

  • Quantity: 4 blocks
  • Individual block dimensions: 8-1/4" wide x 8-1/4" long
  • Weight capacity: 30,000 lbs
  • 3-Year warranty


Note: The manufacturer does not recommend stacking more than 5 blocks high



48-979050 UltraFab Ultra Leveling Blocks - 4 Pack





Video of Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 4

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Ultra-Fab Trailers and RV Leveling Blocks Review

What's up everybody. It's AJ with etrailer.com. Today, we're going to check out the Ultra-Fab, ultra levelers. These are leveling blocks to get your rig nice and level on uneven ground. So when you get to the campsite you see it's not exactly level, you don't want to be in your camper or RV that's like sideways walking around it all day. These are going to go underneath your jacks and under your tire to level it out.

Let's check them out.We've all seen this set up at the campsite, people using woodblocks to help level out their RV or camper, it's not an option. You really shouldn't do that, the wood's going to collect moisture or rot over time and fail on you. That's why we're using these leveling blocks today, they have a heavy duty plastic.I just want to show you, I'm trying to bend it. That's how thick.. It is.

If it was a flimsy plastic, you'd see me bend it or bow it a little bit. It's not happening. I kind of drop it on the ground a couple of times. I know you can't feel the weight but you might be able to hear that it's not just a high pitch, plastic noise and bouncing around like that. Super heavy duty, it's holding up to that.

So that's going to hold up to underneath your RV or camper.These leveling blocks are eight and a quarter by eight and a quarter. And also they're seven, eight tall up to the bottom of this top peg here, and then a half inch from there. And the reason why I separated that measurement, because when you go to stack them like this and like this, they nest inside of each other, you kind of just see the pack here at the top.They work in a variety of different ways and that's because of design much like blocks. You can see that these holes plug right into here and you've got your shape. So when you're pulling up on there, when you're tired, it's not going to kick one out from underneath each other, they're blocked together.

I can't pull them apart here, so you don't have to worry about them sliding and you can see, we use it over here on our camper today. They're nice and in place, I'll pull on it. It's not going anywhere and it gets you that height you need, but they also versatile so that you can switch it up. You never know the campgrounds aren't always going to be the same, so it's good to be able to have those options when you're on the road or you stack them five high.Now these levelers come in four different packs. You can get a four pack, an eight pack or a 10 pack. Each one comes with a carrying case where you just stack them back up in here and zip it up and then you can just easily throw in a compartment and it's out of the way, but it's with you at all times when you need it. Whichever one you go with though, they are all raised the same 30,000 pounds. Just if you have the eight pack or the 10 pack, don't stack them any higher than five.We've arrived at our campsite and you can already see that the ground is uneven. If you look at the level, you can see just how uneven our ground is. What we're going to want to do with our camper today is level it out and that's what when we just go from side to side, to try and figure that out.So we're going to take one block like this, put it underneath the level. You can see how that evens it out. We're going to do that on a bigger scale with our camper today, by putting our leveling blocks like this and kind of the pyramid stack, and we're going to put it behind our tire, then we're going to back up onto them. And that should get it closer to level and this might take a couple tries to figure out how much you need or how many of the blocks you need stacked up but we're going to start here and see how it works.Looking at our trailer, we actually added a magnetic level, we carry, to see how uneven it actually is. Alright, so now we're going to go ahead and I'm going to have Joe back up the camper onto the blocks and we'll watch it in action.Stop! You can see we're right on top of those blocks now, they didn't screech on the ground or move at all, they went right up on there and it's holding it pretty good. With our camper pulled up on the blocks, you can see it really did level it all out from side to side and front to back. So now what I'm going to do is lower the jack and detach our camper from our truck. We will have lowered the jack and also make sure you've already wheel chocked the wheels. I did that right before I started doing this.With my truck pulled forward now, I'm going to go ahead and lower the camera back down by the jack and try and get this level more here in the middle.Looks good there. We're going to take two of our blocks, put them underneath the stabilizer jack, that'll just help even things out. With our stabilizer jack making contact with the block, we're just going to go ahead around our camper and do the same thing for each stabilizer jack.Now we're back in their RV to check the level one more time, I'm going to do side to side and then front to back. So we'll just set this down, looks alright, there on side to side, let's try front to back. Awesome! We are completely level, it just goes to show you how easy it is to set up the Ultra-Fab bricks that go together, come apart very easily. It only adds a couple extra steps to your process when you get to a campsite anyway, but now the leveling it out is going to be such a big deal. You're armed with these. You're good to go. I think that does it for our look at the Ultra-Fabs. Hope this helped.


Customer Reviews

Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 4 - UF48-979050

Average Customer Rating:  4.7 out of 5 stars   (121 Customer Reviews)

Interlocking blocks stack to different heights and can be positioned beneath jacks, stabilizers or RV wheels to add just enough lift to level your rig.

- UF48-979050
by:

These leveling blocks are great. Sturdy but not too heavy. 911204



- UF48-979050
by:

This product was priced better than at any of the RV dealers locally. Rather than waste more time traveling and searching I went to the internet. Your company came up and it was easy to search for these blocks and I could compare several styles. Delivery was quick and the order was accurate. I liked the free shipping if I ordered $100. I was so pleased that I made a second order within a week. 662923



- UF48-979050
by:

Just what we needed to make leveling ea sier. 546314



- UF48-979050
by:

Great product, works as described. I park and level an 11,000lb motor home on these blocks with no issue. 163886



- UF48-979050
by:

Should work very well for leveling my tent trailer. 96284



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


They work great! 597831



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Does the same thing as the other colored blocks but a lot cheaper. 220717


Comments
still no issues a year later
Jeff - 08/20/2016

20418

- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


These blocks have saved us so many times, I can not tell you. From when we are told that the RV parking is "All Concrete Pad" just to arrive and find out that only 1/2 the pad is concrete (so the blocks make it so our rig is level). To parking in the rain and starting out level, to waking to our heads being smooshed against the headboard as our rig settled into the mud-Blocks to the rescue! Great purchase. Buy two sets, you will NEED them! 289270



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Original request for review was upon delivery. I waited. I used the product . . . in all manner of conditions. Now that I've used and abused, it's ok to say: I am pleased. These are the real deal, delivered earlier than promised back when I got them, and doing a better (flawless) job than even I (an admitted grouch about quality) expected. They are solid, versatile, and one of those items you say to yourself "I did right getting those". Good, quality product. 116096


Comments
Tim, Ive been reading about the colored levelers, and I read that Orange are no good, yellow is the best, but are you showing Blue and saying they are far superior, and will not break... we have 28 dual axel. 7000lbs.ksocks
-- comment by: Nancy K - 05/29/2014

4520

- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Haven't used them; I'll be camping soon, and I'll sure give them a try. got to be better than the two long boards I've been usong. 911814



- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


What wanted 906429



- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


I have been shopping with etrailer for a number of years. The products they use are top notch. Customer service is friendly and knowledgeable. Delivery is on time 898502



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Works great leveling camper, eadto set up. 865136



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Half of these blocks broke the first time I used them to level my truck camper. Looking for something that is much tougher. 857861



- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Great product for those with campers! 850572



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Nice product - works well 845511



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Work very well for RV leveling adjustments allowing me to replace heavy bulky wood with these nifty light blocks. 828199



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Shipping was fast 824864



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


The bag makes for easier storage. 817799



- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


I am going 3 stars here only because on my first use, one level slid out from the tire and a few pieces cracked off the bottom. Perhaps user error but it did happen. 811383



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Very nice leveling blocks. I anticipate buying one more kit so I have plenty on hand for leveling my trailer 771611



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Makes the side to side leveling of my camper so much easier and faster. Gets that drink in my hand faster so I am happy! 691387



- UF48-979051
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


My order was delivered complete and on time. Friendly, helpful staff. 644453



- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


These things are great. I have 2 sets n ow. 637027



- UF48-979052
by:

Review from a similar Interlocking Blocks in RV Leveling Blocks


Haven't had a chance to use them yet, but appears to be well made and like the case. They were received promptly. Great transaction, thank you. 610210


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Ask the Experts about this Ultra-Fab Products RV Leveling Blocks

  • Height of Blocks of the Ultra-Fab Leveling Blocks # UF48-979050
    Each block of the Ultra-Fab Leveling Blocks # UF48-979050 is 1-3/8 inches thick.
    view full answer...
  • Weight Capacity of Ultra-Fab Leveling Blocks
    I checked with Ultra-Fab and their Leveling Blocks like what's in the 4-pack # UF48-979050 you were looking at feature a weight capacity of 30,000 pounds. This should be enough to cover just about any trailer or RV on the market. I have attached a short video review below that you can check out as well.
    view full answer...
  • Slide Out Support For Travel Trailer
    The Jack-in-a-Box Camper Slide-Out Support Set # JB-20 for 6,000 lbs capacity and # JB-30 for 10,000 lbs capacity are rated per jack. So each jack will be able to support 6K, or 10K for a total of 12K and 20K respectively. So both set will have more than enough capacity to handle the slide out on your travel trailer. The # JB-20 can range from 20" - 34" in height, and the # JB-30 is adjustable from 31" - 45", so you'll want to measure to see what height range will work best for you....
    view full answer...
  • Dimensions of Ultra-Fab Leveling Blocks
    The Ultra-Fab Leveling Blocks individually measure 8-1/4" wide x 8-1/4" long each; they are available in different quantities: - Quantity of 4: Ultra-Fab Leveling Blocks # UF48-979050 - Quantity of 8: Ultra-Fab Leveling Blocks # UF48-979052 - Quantity of 10: Ultra-Fab Leveling Blocks # UF48-979051 I have added a link to a video review of these leveling blocks for you to take a look at.
    view full answer...

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Info for this part was:

Installed by:
Andrew K
Installed by:
Cole B
Written by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Chris R
Updated by:
Sarah W
Updated by:
Halie H
Updated by:
Matthew E
Video by:
Aidan B

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