Retaining Wall Step Up - Landscaping & Lawn Care - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Landscaping & Lawn Care

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools
Display Modes
Old 05-25-2019, 06:57 AM   #1
Member
 
Join Date: Feb 2018
Posts: 60
Rewards Points: 62
Default

Retaining wall step up


Hi,

We dug a trench 1 foot deep up our driveway on an angle for a step up wall. We then filled it in with GA crushed stone and compacted it, and started to build our step ups only out of the crushed stone. Kind of like this below: Name:  angled-step-up.jpg
Views: 27
Size:  37.3 KB


But most of the step up diagrams show that you need to step up the soil beneath the GA crushed stone like this. Compacting the soil and leveling it as you go underneath the GA. Like this image below.
Name:  square-step-up.jpg
Views: 22
Size:  13.1 KB

Is it important to level the soil below the crushed stone and have it stepped up as well as step up the crushed stone? Or can it just be a gradual slope below the crushed stone? We just don't want to build the base of the wall wrong and have it get washed out at the base level.
wrender is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-25-2019, 07:16 AM   #2
Member
 
Join Date: Jan 2014
Location: Central Kentucky
Posts: 3,537
Rewards Points: 6,997
Default

Re: Retaining wall step up


It depends on the soil, height of the wall and compaction workmanship. All the base and at least 1/2 - 1 stone needs to be below grade. This is well stated in the product instructions.



My steps for the dirt were more of a ramp than what you show in the second illustration. Six blocks high at the high point and as solid and level as the day I finished it in 2012.
__________________
Colbyt
Retired drapery and home furnishings installer.
Colbyt is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-25-2019, 07:34 AM   #3
Member
 
Join Date: Feb 2018
Posts: 60
Rewards Points: 62
Default


Ok.thanks. I guess we will just leave the soil angled. I was just concerned that it needed to be flat. our wall is going to be 7 blocks tall at the highest point. Approx 3 feet. It will be stepped back and step up 3 levels. Yes. We will have a full row under at each level.
wrender is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-25-2019, 11:39 AM   #4
Member
 
Join Date: Jan 2014
Location: Central Kentucky
Posts: 3,537
Rewards Points: 6,997
Default

Re: Retaining wall step up


If your base run of blocks is level side to side and front to back sitting on at least 6" of compacted base you should never have a problem.
__________________
Colbyt
Retired drapery and home furnishings installer.
Colbyt is offline   Reply With Quote
Old 05-25-2019, 12:11 PM   #5
Member
 
Join Date: Feb 2018
Posts: 60
Rewards Points: 62
Default


Thanks. Yes. we have about 7 to 8" of compacted crushed stone. So should be good to go.
wrender is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Please help with retaining wall / patio issue that has arisen. coderguy Landscaping & Lawn Care 3 05-26-2012 04:45 PM
Retaining wall combining concrete blocks and PT lumber JEL Landscaping & Lawn Care 1 04-06-2012 08:39 PM
my concrete retaining wall has a major crack where the wall has now shifted DanDaMan Building & Construction 1 04-02-2011 11:34 AM
Retaining Wall Demolition --HOW? tdrumm Landscaping & Lawn Care 12 03-20-2011 02:32 PM
Adding drainage to existing retaining wall? pcballgame Landscaping & Lawn Care 5 04-14-2009 03:29 PM




Top of Page | View New Posts