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Discussion in 'Hardscaping' started by dutchacres, Oct 27, 2012.
pS 90' long i would go with a lean concrete footer. personally.
Well I am not real sure what to say. I am not opposed to a engineer but in this neck of the woods you would go hungry if you tried to charge those kinds of rates you would need to cover that cost. Just some info on the wall I am installing and maybe this might be good or bad for me on here but it is what it is. I am using Versa Lok block and using geo grid at 3' and at 5' per specs running 6' behind the wall. I am using 12" of compaction packing every 3". I am installing a 4" drain behind wall covered in washed stone with a barrier between stone and dirt to keep dirt from leaching into stone. The first course will be below grade. When back filling I will compact dirt on geo grid so it will not move or settle. All this is done per specs according to my certification. This may not be what you guys do but this is what I have done on every wall that exceeded 3'. All the walls look as good today as the day I got done installing them. I'm not saying I am the best or that I am a expert by any means but I do feel I have educated myself well enough to know what I am doing. Sure there are more experienced guys out there but they were where I am at at some point in there career also. If you want to bash me then go ahead. I am always open to honest help. Everyone has there way of doing things and I am no different.
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Just remember that there is always someone better than you and if you dish it out you better be able to take it if down the road someone says you need to do something different. I'm not looking for guys on here that have little man disease. I have been open and honest about my abilities and what I am doing. Maybe I can do something different and maybe you know something that will help me next time. If so that is fine but don't come on here and bash me and act all big and bad because you think yours don't stink. We all wake up and put our pants on the same way. The higher you put yourself up the harder the fall.
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you need geogrid on the first layer above grade. + the layers your propose.
you should go with 2 full blocks of embedment. 6" embedment isnt great on 72" height. 12" is stellar.
i would use 3.0/300 grid. but then 150 is biaxial and faster.
you cant charge a homeowner 5 grand for engineering, they would never go for it. commercial jobs only do it due to liability, even then sometimes they test for compaction sometimes they dont...
If you're paying $5k to engineer a wall, you need to shop around. I designed a garage that needed an engineer to design and stamp the structural slab, back wall (the slab was 8' above grade in the back), and hurricane tie downs, because I couldn't fit shear panels between the doors. All that plus having the engineering firm do private inspections they certified with the county - $3300.
Not sure where you got the 5 grand from?
I pay an engineer $800 to $1200 for the whole sha-bang. Soil testing. And wall design. Have never paid more. But I realize it may be slightly higher for others. but not 5 grand. Most wall designs are copy and paste. Some deeper base courses, some longer and more frequent grid.
This guy needs help, lets try to keep what we type accurate.
I'm not sure who you're directing that to. I presume italianstallion?
Walls "fall" too
Can you build a wall without grid? Sure can.
Should you build a wall without grid? From a professional business and from a liability standpoint - NO. If someone is paying you to do the job they are trusting that you are competent. They expect this work to still be standing 13+ yrs from now. In 9 years the people dont wanna be contending with health problems and then have a wall that needs torn down and rebuilt.
I saw a couple weeks ago where you were looking for help pricing. I was quite busy then and didnt really look at the replies people were giving you. Had I not been busy and had I sat down and read the replies - I would have pointed out
that said wall must be engineered. I wont participate in telling you what the pricing numbers will be. I am against that, and it drives me up the wall when other members tell people what their price would be. You can't learn that way. But I usually go to extremes to assist folks in what to account for and why. Right down to factoring in the cost of the porta pot rental.
The liability with retaining walls will carrry through with you as long as you live (if you're a sole propertiership), or as long as you're in business (if you're a corporation - Inc, LLC).
I have written on this forum extensively about retaining wall construction and liability, if you have time feel free to do a search under my user name and you should find all sorts of posts and threads from me on the subject.
Itallion stallion mentioned burying 2 courses of base block. May not be a bad idea. Of all the walls we have done - we have only buried two courses on extremely steep slopes. But since you're not using an engineer it may be wise to bury two courses, this wal that wall won't slide down the slope. Is the wall on a slope or at the bottom of a slope?
The degrading comments are from people who have already made the mistakes. I was in your shoes 3 years ago, all excited about a huge install i landed. DVS came on and ripped me a new one saying blah blah blah your going to screw up blah blah blah, and it pissed me off! well my hard head didnt listen to his advice. 6 weeks later and -$2000 in my bank account i realized he was right.
That being said... I think we are off topic and the bashing needs to change into something helpful. Every day take pictures and post them, ask questions, and when you finish, if everything was done perfect, you can tell us to SHOVE IT. Congratulations on the job btw
Yup! very fast it can cost you money! Believe me - I KNOW! We have a portion of a job that we did in 2010 that we're about to go back and rebuild. It's gonna cost me AT LEAST $2000.00, probably closer to $3k. You can lose money during the construction of the job or you can lose money long after the job was initially executed. It happens. And it will happen.
And yup! I come on very strong. I want my words to be in the back of people's minds the entire time they are doing the job. I want them to be determined to prove me wrong. But most folks think I'm just some lonely, miserable, internet troll - LOL
The ground is pretty level where the wall is going acrossed it. The slope is running up the driveway which the wall being just ending the farther up I go. I don't know if I am explaining it well enough for you guys to understand. I have some before pics and will post them tomorrow when I get on the computer. I know you guys seem to think I don't have much experience with walls but that really isn't the case. The first wall I built was 8-9 years ago at a holiday inn and it was 300' long but on 4' tall. I have built walls from 3' and 50' long at the bottom of a hill two walls I built around fire hydrants that were on a mound and they wanted the ground level around the hydrant so I cut the hill back built walls around and sloped the hill back to normal. There has been jobs where I built walls for walk in basements that the walls were at least 8' tall. I am far from a rookie at this hardscape stuff and the main reason for posting was because I had not built any for awhile and I just wanted to kind of see what the going rate was. I know everyone's rates are different depending on the area, overhead and block type but why should I charge $35 sq ft when I could get $40-45 sq ft and make more money. I do thank all you guys for the help and I don't mean to come off as a jerk or know it all. I am always looking for better ways of doing things and believe no matter how long I am doing things I will never know it all. The reason I am building the wall the way I am is for two reasons 1 is that when the salesman came out to look at the job he stated that I needed to bury one course. The ground behind the wall is level and the ground below is level it isn't holding anything back besides dirt and a few trees. The second reason I am building the way I am is when I got certified in SRW installation I have specs that are followed depending on soil type, slope, load and all that good stuff. When I looked at all those factors that is how I made my decision on how many course to bury and where to put the geo. I will post pics as I am building and tearing down so you guys get a better idea. I'm not the best at describing things so I may have everyone confused and thinking I have no clue as to what I am doing. I am very confident that the wall will stand the test of time and will out last me. Thanks again and sorry I came off rude or inconsiderate I just know how some people can be.
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