Why are you backfilling with base? It should be 3/4 clear. Its also a best practice to use the geotextile under the 6' base so keep the subgrade and 6' base from migrating into each other.
This wall has been engineered from the ground up to work with Oregon DOT road base because it is readily available here in the PNW. We can't get 3/4 open very easily. Everything shown in this video is designed to make the strongest SRW possible with our unique environmental challenges here. It may be different where you are from.
Hi, I think this video is exactly what I am looking for. My yard is on a 30 degree slope, can I use these blocks as a retaining wall for 2 sides of a 30 foot oval pool? Thanks
You totally can use these blocks for that purpose. In fact, we've seen it done a time or two. However, do to the excessive weight of the pool, we recommend getting some engineering done to prevent catastrophic wall failure. Additionally, these blocks are only available from either our retail facilities or our dealers here in the Pacific Northwest.
Unfortunately, I am unfamiliar with engineers in your area. I would recommend some sort of structural engineering firm that has experience with engineering site structures like retaining walls. A quick Google search turned up a number of results. Find one near you and give them a call.
i saw the murata wall stones u guys used calls for 4 feet of gravel behind the wall ... this seems like A LOT since i have seen youtube videos of "professional contractors" that only add a foots worth of gravel behind the wall ... is 4 feet a lot more than average for retaining walls?
Our specifications reflect modern engineering and seismic requirements. All of the videos that you have seen with a foot of gravel are the old way of doing things. There have been quite a few walls built with a foot of gravel, but there have also been quite a few walls that have fallen over because of it.
Yes, it definitely could be. Depending on what you're doing, and the height of the wall, our Chateau wall block or Chateau Moderna wall block maybe a better choice.
Yes, you can. You can view a drawing at this link: westerninterlock.com/wp-content/uploads/2021/02/Murata-Retaining-Wall-Details.pdf The drawing of the inside radius is on page 5. The minimum inside radius is 36".
With exception to the choice of gravel and back fill, (location driven) this is an excellent, basic steps video for a DIYer. Especially love the Link you provided showing the schematics.One question though, does a very sandy Florida soil also need geo-textile on the vertical? Thanks for any response.
Yes. Geotextiles are always a good idea for soil stabilization. Check out this video for an excellent demonstration: th-cam.com/video/Ra4B5Tx4QCk/w-d-xo.html
Wonderful!! HOW TALL COULD THE WALL BE??? I NEED LIKE A 3 METTER TALL NOT TOO LONG WALL...2 METTER MAYBE...BUT TALL...COULD THIS TECHNIQUE WORK??? HOW MUCH DOES THE GRAVEL HAVE TO GO DEEP INTO THE PROPERTY???
Hello. It really all depends on the retaining wall block used. Each one is going to have a little bit different specifications than the other. It also depends on the kind of material you’re excavating whether it is Sandy or more clay soil.
Theoretically you could, yes. However, we recommend using ODOT or WSDOT road base which has less fines than standard 3/4-0. We specified this aggregate because it met our engineering requirements and was readily available here in the Pacific Northwest. If you live up here, you should be able to get it from pretty much any gravel pit.
Since this was a mock-up wall, it's not connected to anything. We recommend that any drainage lines be daylighted every 50 ft or on one end of a wall if it's shorter than that. We really like the Wall Drain Pro. There's no need for difficult cutting or anything.
It's impossible to say. There's too many variables involved. It all depends on the location, accessibility, the materials used, and the equipment needed. It is entirely possible that it could cost that much.
I have landscape timbers that need to be replaced (yes landscape timbers that rot very quickly especially when no gravel or drainage was used to keep them away from soil). Just one little section alone (3'x12') I was quoted $2,500. That's using 6"x6" pressure treated lumber and some rebar. Cost of materials is crazy right now.
That's why a segmental concrete retaining wall is a great choice. Costs are still low and they last a LOT longer. Most likely forever if done correctly.
You are absolutely correct. We only had 3/4"-0 available to us at the time and location of this video shoot. We spec ODOT road base which an open-graded rock for all of our retaining walls.
Someone please help me. I want to build a retaining wall (2 rows) for a plant bed but i have a slope on one side. How do I make the first row of blocks level? If i make the base level one side will be close to ground level than the other side
You need to use a spirit level to get the first course level. Then lay the subsequent courses. If you have a slope, it is possible that the first course may disappear into the ground. This is OK. See the thumbnail image on the video in this article for a visual. Then lay the rest of your courses. It is possible that you may need to lay more than two total courses to achieve your desired height.
do you need to have that much gravel behind the wall? Seems like a lot of gravel. I'm assuming you are doing that just for the benefit of filming. Seems like you have as much gravel behind the wall as it is tall.
Good eye! We do have plenty of gravel here because we dug out the hill a little too much. To read more about how much gravel is required for Murata wall installation, you can check out the installation instructions here: westerninterlock.com/wp-content/uploads/2019/03/WI-Brochure-2018-Murata-Wall-Suplement-WEB.pdf
There's this one: th-cam.com/video/DK788xegyak/w-d-xo.html It explains how to tell the difference between the right and left handed block. We'll have to make one showing corner construction!
Good catch, we always recommend water with compaction no matter the type of gravel used. There was no access to a sufficient water supply for this particular video but in hindsight we should have prioritized it for the sake of proper education, thank you for allowing us an opportunity to explain!
Water acts as both a lubricant and a carrier of dirt particles. As this water drains from the soil, gravity pulls these loose particles downward, filling in air gaps.
It actually angers me that we can’t buy this in the UK, especially in non full pallet quantities. Marshalls Croft is the nearest equivalent and the quality of the blocks is frightening. They crumble in your hands and frequently vary in width, front face to back, by an Inch or more, which looks awful. It is unbelievable how hard it is to buy smaller quantities of interlocking blocks in the UK, almost like there’s a conspiratorial price fix going on.😭😭🤦♀️🙄🤣🤣🤣❤️
We worked directly with structural and geotechnical engineers, along with the NCMA to develop this wall block to use back fill that is readily available in the Pacific Northwest. Our Murata wall is specifically designed to cope with the huge amount of rain that we get as well as the current seismic regulations. The DOT road base specified here works great. We've had 350,000 square foot of wall installed this way with no failures.
![How to Build a Block Retaining Wall [DIY Guide]](http://i.ytimg.com/vi/GWubsM2btLM/mqdefault.jpg)
thanks for the tips guys, awesome job
You’re welcome!
Why are you backfilling with base? It should be 3/4 clear. Its also a best practice to use the geotextile under the 6' base so keep the subgrade and 6' base from migrating into each other.
This wall has been engineered from the ground up to work with Oregon DOT road base because it is readily available here in the PNW. We can't get 3/4 open very easily. Everything shown in this video is designed to make the strongest SRW possible with our unique environmental challenges here. It may be different where you are from.
Hi, I think this video is exactly what I am looking for. My yard is on a 30 degree slope, can I use these blocks as a retaining wall for 2 sides of a 30 foot oval pool? Thanks
You totally can use these blocks for that purpose. In fact, we've seen it done a time or two. However, do to the excessive weight of the pool, we recommend getting some engineering done to prevent catastrophic wall failure. Additionally, these blocks are only available from either our retail facilities or our dealers here in the Pacific Northwest.
@@WesternInterlock thanks. I'm in North Carolina, can you recommend someone who can help me with the engineering part? Thank you.
Unfortunately, I am unfamiliar with engineers in your area. I would recommend some sort of structural engineering firm that has experience with engineering site structures like retaining walls. A quick Google search turned up a number of results. Find one near you and give them a call.
@@WesternInterlock thank you. I appreciate that information.
What is approximately maximum height of this solution without concrete base under ground?
There is never a concrete base needed. We require engineering on walls over 48".
i saw the murata wall stones u guys used calls for 4 feet of gravel behind the wall ... this seems like A LOT since i have seen youtube videos of "professional contractors" that only add a foots worth of gravel behind the wall ... is 4 feet a lot more than average for retaining walls?
Our specifications reflect modern engineering and seismic requirements. All of the videos that you have seen with a foot of gravel are the old way of doing things. There have been quite a few walls built with a foot of gravel, but there have also been quite a few walls that have fallen over because of it.
Can you use this retaining wall as a dwarf wall for a conservatory?
Yes, it definitely could be. Depending on what you're doing, and the height of the wall, our Chateau wall block or Chateau Moderna wall block maybe a better choice.
can you use this for a inside curved wall?
Yes, you can. You can view a drawing at this link: westerninterlock.com/wp-content/uploads/2021/02/Murata-Retaining-Wall-Details.pdf The drawing of the inside radius is on page 5. The minimum inside radius is 36".
With exception to the choice of gravel and back fill, (location driven) this is an excellent, basic steps video for a DIYer. Especially love the Link you provided showing the schematics.One question though, does a very sandy Florida soil also need geo-textile on the vertical? Thanks for any response.
Yes. Geotextiles are always a good idea for soil stabilization. Check out this video for an excellent demonstration: th-cam.com/video/Ra4B5Tx4QCk/w-d-xo.html
Wonderful!! HOW TALL COULD THE WALL BE??? I NEED LIKE A 3 METTER TALL NOT TOO LONG WALL...2 METTER MAYBE...BUT TALL...COULD THIS TECHNIQUE WORK??? HOW MUCH DOES THE GRAVEL HAVE TO GO DEEP INTO THE PROPERTY???
Hello. It really all depends on the retaining wall block used. Each one is going to have a little bit different specifications than the other. It also depends on the kind of material you’re excavating whether it is Sandy or more clay soil.
@@WesternInterlock the material is practically loose dirt on a side of the property white the other side (9 meters wide) is more compact.
Can you use 3/4 minus/paver base behind a wall, or is it supposed to be 3/4 clear?
Theoretically you could, yes. However, we recommend using ODOT or WSDOT road base which has less fines than standard 3/4-0. We specified this aggregate because it met our engineering requirements and was readily available here in the Pacific Northwest. If you live up here, you should be able to get it from pretty much any gravel pit.
Hi! Where is the pipe connected to?
Since this was a mock-up wall, it's not connected to anything. We recommend that any drainage lines be daylighted every 50 ft or on one end of a wall if it's shorter than that. We really like the Wall Drain Pro. There's no need for difficult cutting or anything.
a cinder block retaining wall fell over at my fathers house. its 4'X60'
and they quoted him 60-90k to replace, does that sound right?
It's impossible to say. There's too many variables involved. It all depends on the location, accessibility, the materials used, and the equipment needed. It is entirely possible that it could cost that much.
I have landscape timbers that need to be replaced (yes landscape timbers that rot very quickly especially when no gravel or drainage was used to keep them away from soil). Just one little section alone (3'x12') I was quoted $2,500. That's using 6"x6" pressure treated lumber and some rebar. Cost of materials is crazy right now.
That's why a segmental concrete retaining wall is a great choice. Costs are still low and they last a LOT longer. Most likely forever if done correctly.
That's owesome
Thank you!
Is that 3/4”- behind the wall and not drainage rock?
You are absolutely correct. We only had 3/4"-0 available to us at the time and location of this video shoot. We spec ODOT road base which an open-graded rock for all of our retaining walls.
Someone please help me. I want to build a retaining wall (2 rows) for a plant bed but i have a slope on one side. How do I make the first row of blocks level? If i make the base level one side will be close to ground level than the other side
You need to use a spirit level to get the first course level. Then lay the subsequent courses. If you have a slope, it is possible that the first course may disappear into the ground. This is OK. See the thumbnail image on the video in this article for a visual. Then lay the rest of your courses. It is possible that you may need to lay more than two total courses to achieve your desired height.
U need to start your wall in the lowest level and walk your wall through your decide high. Like making steps through your slovep if need it.
Well said!
If I could buy these in California that would be great. Sadly I can’t find anything close to it
We can ship to you. If you are interested go to our website and fill out a quote request.
do you need to have that much gravel behind the wall? Seems like a lot of gravel. I'm assuming you are doing that just for the benefit of filming. Seems like you have as much gravel behind the wall as it is tall.
Good eye! We do have plenty of gravel here because we dug out the hill a little too much. To read more about how much gravel is required for Murata wall installation, you can check out the installation instructions here: westerninterlock.com/wp-content/uploads/2019/03/WI-Brochure-2018-Murata-Wall-Suplement-WEB.pdf
Yes you need 4' of back fill for your grill
Dang, no videos out there that show how to use the corners!
There's this one: th-cam.com/video/DK788xegyak/w-d-xo.html
It explains how to tell the difference between the right and left handed block. We'll have to make one showing corner construction!
@Western Interlock sheesh quick response, thanks!
I saw that one, it is helpful thank you kindly
If you have Instagram, we cover it here: instagram.com/tv/CU_dkqkAmkk/
@@WesternInterlock I don't, but I really appreciate your help!
We just uploaded it here: th-cam.com/video/K4WgVmISZFQ/w-d-xo.html
No water on that compaction eh? Why?
Good catch, we always recommend water with compaction no matter the type of gravel used. There was no access to a sufficient water supply for this particular video but in hindsight we should have prioritized it for the sake of proper education, thank you for allowing us an opportunity to explain!
@@WesternInterlock why is water needed for compaction?
Water acts as both a lubricant and a carrier of dirt particles. As this water drains from the soil, gravity pulls these loose particles downward, filling in air gaps.
1000 likes 👍🙂
It actually angers me that we can’t buy this in the UK, especially in non full pallet quantities. Marshalls Croft is the nearest equivalent and the quality of the blocks is frightening. They crumble in your hands and frequently vary in width, front face to back, by an Inch or more, which looks awful. It is unbelievable how hard it is to buy smaller quantities of interlocking blocks in the UK, almost like there’s a conspiratorial price fix going on.😭😭🤦♀️🙄🤣🤣🤣❤️
We're sorry to hear about that. We wish you were closer! We can ship pallets overseas, but it's EXPENSIVE. Best of luck finding something locally.
Hi my name is Brian I work for concrete plant that sells retaining wall ...contact me please
U should need to use 1" clean rock for back fill. Not minus ur creating pressure with minus
We worked directly with structural and geotechnical engineers, along with the NCMA to develop this wall block to use back fill that is readily available in the Pacific Northwest. Our Murata wall is specifically designed to cope with the huge amount of rain that we get as well as the current seismic regulations. The DOT road base specified here works great. We've had 350,000 square foot of wall installed this way with no failures.
Never take building advice from some who cant use basic proper grammar imo...if you are sloppy with a sentence you'll be sloppy with a build.