How to build a 3 tier retaining wall on a slope

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• published: 10 Sep 2015
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How to build a 3 tier retaining wall on a slope. 0:00the project we've got going here is one of the most typical retaining wall 0:03projects for their help built on a walk out lots of a good five seller on this 0:07side of the house was as you say pretty much wasted space it's too steep to 0:12planting it's kind of hard to more on so we've got a good solution will put in 0:16three different areas will create some flat areas where we can plant some 0:19flowers and shrubs and also high in the air conditioner compressor here gonna 0:24have nine rows showing a four-inch block total of three feet for each wall when 0:29you start working on wall that high you need to do a little more preparation 0:32what we've done is dig down about six inches below where we want them all to 0:37start and we've put in to fill any compact the fill with a hand tamper this 0:42tool is a little larger area than the peace of four-by-four that we use their 0:46first project area months and we had a truck dump off about three yards up the 0:53driveway or just bring it down here with wheelbarrows check to see overdue on 0:58issues and when you look it over here in this in this corner 1:27prepared all along the first roller pretty much be sunk below the ground 1:36level in the front as a rule of fun you want to bury the bottom row about one 1:41inch for every eight into the wall height above the ground pretty close to 1:45that with 36 inches above the ground and four inches below this wall we need a 1:49little bit larger bloc is only about 45 pounds instead of a flange it has these 1:54two little holes 4 pins the airlock with the box above it ready to go straight 2:04middle curve around and diet to the hill ok here's a second one right now we 2:10struggle building line to make sure that were installed in the first to watch 2:14your perfectly straight employable 2:23but sometimes it's just easier to beat it with a map it 2:41including the part of the wall as we said these blocks have holes for 2:53fiberglass pins to lock into the robe of them but what about the pins in the 3:00house we don't get any dirt in the hold me back though our backbone using river 3:08rock replacing the rock behind the blacks and the low areas between project 3:27you want to meet the top the block next rule the bloods little holes on the 3:34bottom right over the top of our pins you stack the box you pull the top lock 3:41forward and everything gets stuck together the hillsides here 3:51scooped out this area and it's still back in brought up the level of glass 3:55block on our first roll heading the block to the second row until the 4:00natural rate of a healthy diet starts to bury them 4:13we need half a block up against the house and one way of getting this is 4:22using a cold chisel and a fish smoked so we're done here is just scored this all 4:27the way around the outside as you can see on the edge here and we break it you 4:38should get a pretty clean break we may have to clean up just a little bit 4:53same steps for each row insert the pins 5:05blocks with gravel the tops of the blocks and put on the next course we've 5:15got six course this total and this will take a couple of hours I think we should 5:23tell you that we've done on the wall here the top lock so-called cap locks 5:27they don't have a little holes for the pins sticking out the top you don't want 5:31to see your top role remember the blocks are laid out in a running bond pattern 5:35of this means of a joint for nightline top row after row but they're staggered 5:39also there are some adjustments you have to make one working with curved sections 5:44at the bottom of the wall we have to leave the space between the blocks but 5:48as we move up the wall space narrows at the top we might even make the trip up 5:52part of the block to get it to fit well that's because the blacks tend to get 5:55squeezed together on a curve as they step back to the wall taking about a 6:00full day will come back tomorrow and hopefully we should be able to get the 6:03other two levels done this is a lot of work that sounds of the Turks have even 6:22the Tampa gets heavy after a while but we didn't finish it in a weekend and now 6:26we're just putting in a finishing touch 6:30construction blocks just how little insurance the film behind the top row 6:43here will push it forward on the fiberglass pins but there's nothing but 6:47the way to the block holding it down the adhesive helped hold it down a little 6:52bit less likely it'll be knocked out of position again once we're done with this 6:56project