Board Formed Concrete Wall

 
Thread Tools Search this Thread Display Modes
Old 11-27-2017, 05:11 AM   #1
Pro
 
MarkJames's Avatar
 
Trade: Handyman Services
Join Date: Nov 2012
Location: Arlington, VA
Posts: 7,090
Rewards Points: 12,923

Board Formed Concrete Wall


There's a remodel job in the neighborhood where they're said to be going for a horizontal board look on a 2-3' high concrete retaining wall. The forms are made out of horizontally faced and braced 2x4's, without plywood backing. Does this sound like a real pro method? It's got a bit of the "we never did it this way before'" look to it so far, but this contractor already did 22 cubic yards worth of steps and landing there (higher up on the hill than this new retaining wall, by about 12'

The wall will run about 20', then turns 90 and runs up a driveway for another 15' or so.

I hope concrete doesn't show up this morning, because the side form can be wobbled easily.

Last edited by MarkJames; 11-27-2017 at 05:18 AM.
MarkJames is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 11-27-2017, 05:57 AM   #2
Pro
 
builditguy's Avatar
 
Trade: Carpentry
Join Date: Nov 2013
Location: Missouri
Posts: 1,790
Rewards Points: 406

Re: Board Formed Concrete Wall


I wouldn't say it is exactly the most professional way, but I've seen alot of concrete walls that were poured with wood forms.
For basements, forms used to be plywood with pencil ties.

For standard concrete forms they make plastic forms that slide down inside the forms. It leaves a wood impression in the concrete.
They probably make other styles.

The difference is the forms, to make it look like boards, leave the impression. What you described is going to make it look like it was formed with boards, not made of boards.

As far as the forms being wobbly, I see that a fair amount. Usually someone that hasn't poured very much. Even small pours that are about 12" out of the ground, I don't see enough kickers. You can go by after it's poured and see the bow.

Advertisement

builditguy is offline  
The Following User Says Thank You to builditguy For This Useful Post:
MarkJames (11-27-2017)
Old 11-27-2017, 08:04 AM   #3
Pro
 
hdavis's Avatar
 
Trade: remodeling
Join Date: Feb 2012
Location: CoastalME
Posts: 19,970
Rewards Points: 8,901

Re: Board Formed Concrete Wall


5/4 is plenty thick enough. I don't think this is going to be a good look.

Building wood forms in general takes some experience.
hdavis is online now  
   
 
Old 11-27-2017, 09:33 AM   #4
Hack
 
asevereid's Avatar
 
Trade: Carpenter
Join Date: Jan 2012
Location: Kamloops, B.C.
Posts: 2,361
Rewards Points: 586

Re: Board Formed Concrete Wall


Notice any ties holding the forms together?
I'm just trying to picture how this would look...


Sent from my SM-G530W using Tapatalk
__________________
How to figure your pricing:
http://goo.gl/Il8c2
L+M+O+P/ Pricing, Estimating, And Success
Charging tree fiddy per lineal BOB
asevereid is offline  
Old 11-27-2017, 09:40 AM   #5
Pro
 
hdavis's Avatar
 
Trade: remodeling
Join Date: Feb 2012
Location: CoastalME
Posts: 19,970
Rewards Points: 8,901

Re: Board Formed Concrete Wall


Quote:
Originally Posted by asevereid View Post
Notice any ties holding the forms together?
I'm just trying to picture how this would look...


Sent from my SM-G530W using Tapatalk
Since they're trying for a decorative look, the forms can be tied together above and below the exposed face only. Bracing would be doing most of the work.
hdavis is online now  
Old 11-27-2017, 09:47 AM   #6
John the Builder
 
SmallTownGuy's Avatar
 
Trade: Carpenter/Builder
Join Date: Sep 2012
Location: Oxford, MI
Posts: 12,468
Rewards Points: 9,840

Re: Board Formed Concrete Wall


pictures please.

before & after.

if you get busted for trespass we'll bail you out.

trust me on this.
__________________
"Mornin' ladies, my goodness don't you look happy. Must be cuttin' somebody up pretty good." - Andy Griffiths
SmallTownGuy is online now  
The Following 3 Users Say Thank You to SmallTownGuy For This Useful Post:
B.Johnson (11-27-2017), mstrat (11-29-2017), tgeb (11-28-2017)
Old 11-27-2017, 09:49 AM   #7
Pro
 
Fishindude's Avatar
 
Trade: Industrial
Join Date: Aug 2017
Location: Indiana
Posts: 186
Rewards Points: 388

Re: Board Formed Concrete Wall


Sounds rather jerry rigged.
I'd use standard wall forms and a form liner to get the desired look. Something like a sheet of T-111 on inside face of forms would do it, if you don't want to buy the plastic form liners.
Fishindude is offline  
Old 11-27-2017, 10:18 AM   #8
John the Builder
 
SmallTownGuy's Avatar
 
Trade: Carpenter/Builder
Join Date: Sep 2012
Location: Oxford, MI
Posts: 12,468
Rewards Points: 9,840

Re: Board Formed Concrete Wall


Quote:
Originally Posted by asevereid View Post
Notice any ties holding the forms together?
I'm just trying to picture how this would look...


Sent from my SM-G530W using Tapatalk
like a bunch of striped pillows strung together?

just guessing...
__________________
"Mornin' ladies, my goodness don't you look happy. Must be cuttin' somebody up pretty good." - Andy Griffiths
SmallTownGuy is online now  
Old 11-27-2017, 10:55 AM   #9
Hack
 
asevereid's Avatar
 
Trade: Carpenter
Join Date: Jan 2012
Location: Kamloops, B.C.
Posts: 2,361
Rewards Points: 586

Re: Board Formed Concrete Wall


Quote:
Originally Posted by hdavis View Post
Since they're trying for a decorative look, the forms can be tied together above and below the exposed face only. Bracing would be doing most of the work.
Quote:
Originally Posted by SmallTownGuy View Post
like a bunch of striped pillows strung together?

just guessing...
If its only 2 to 3 feet tall (depending on thickness) they should be able to make that look just fine... But I agree that more kickers are necessary. That form should be plenty strong with 2x4 facing.
If it were me, I'd have a kicker every 5 or 6 feet.
****, it ain't rocket appliance.

Sent from my SM-G530W using Tapatalk
__________________
How to figure your pricing:
http://goo.gl/Il8c2
L+M+O+P/ Pricing, Estimating, And Success
Charging tree fiddy per lineal BOB
asevereid is offline  
The Following User Says Thank You to asevereid For This Useful Post:
SmallTownGuy (11-27-2017)
Old 11-27-2017, 01:00 PM   #10
Pro
 
MarkJames's Avatar
 
Trade: Handyman Services
Join Date: Nov 2012
Location: Arlington, VA
Posts: 7,090
Rewards Points: 12,923

Re: Board Formed Concrete Wall


I'll try to get pics, but there are guys all over the site today.
MarkJames is offline  
The Following 2 Users Say Thank You to MarkJames For This Useful Post:
asevereid (11-27-2017), SmallTownGuy (11-27-2017)
Old 11-27-2017, 03:22 PM   #11
Sure, I can do that...
 
jlhaslip's Avatar
 
Trade: carpentry/renovations
Join Date: Dec 2009
Location: Edmonton, Alberta, Canada
Posts: 1,890
Rewards Points: 190

Re: Board Formed Concrete Wall


Imagine, if you will, how basements were poured before Plywood became common.

Set up the wood form and add a layer of plywood forms behind it and use snap ties or tie wire to bind the panels together.

It ain't rocket surgery here.

It actually looks fine as an Architectural feature. Used it on this Bridge for the Abutments. Sorry, can only find this drawing as an image.
Attached Thumbnails
board formed concrete wall-khpbimage.jpg  
jlhaslip is offline  
Old 11-27-2017, 03:29 PM   #12
Safety Third
 
shanewreckd's Avatar
 
Trade: Concrete Carpenter. Concreepenter? Carpencrete?
Join Date: Oct 2014
Location: Northern BC, Canada
Posts: 510
Rewards Points: 196

Re: Board Formed Concrete Wall


It would look nicer if it was rough sawn 5/4 or old ship lap. It's easy enough to make something like that look good, and brace it stable. I'm interested to see how 2x4 turns out...
shanewreckd is offline  
The Following 3 Users Say Thank You to shanewreckd For This Useful Post:
asevereid (11-27-2017), Rio (12-01-2017), SmallTownGuy (11-27-2017)
Old 11-27-2017, 04:04 PM   #13
Pro
 
hdavis's Avatar
 
Trade: remodeling
Join Date: Feb 2012
Location: CoastalME
Posts: 19,970
Rewards Points: 8,901

Re: Board Formed Concrete Wall


The problem with individual boards is some will bulge more than others. T&G gets rid of that issue. Plywood backing gets rid of it too. I
hdavis is online now  
Old 11-27-2017, 07:41 PM   #14
Pro
 
B.Johnson's Avatar
 
Trade: Builder
Join Date: Sep 2016
Location: Midwest
Posts: 969
Rewards Points: 1,414

Re: Board Formed Concrete Wall


Quote:
Originally Posted by shanewreckd View Post
It would look nicer if it was rough sawn 5/4 or old ship lap. It's easy enough to make something like that look good, and brace it stable. I'm interested to see how 2x4 turns out...
I think that ship lap would be a bad idea. Remember that it is a form and you are doing to end up with a reverse image.

I've never used rough sawn or reverse board and batten as a form, but wouldn't it be tough to strip?
__________________
Home Designer Series Software
B.Johnson is online now  
Old 11-27-2017, 07:47 PM   #15
Pro
 
DaVinciRemodel's Avatar
 
Trade: Design/Build Remodeler
Join Date: Oct 2009
Location: Denver
Posts: 5,239
Rewards Points: 768

Re: Board Formed Concrete Wall


Here you go. This is where I learned about it.

https://www.lifeofanarchitect.com/bo...rmed-concrete/
__________________
I love what I do and I'm very good at it!

Da Vinci on the web or Da Vinci On Facebook
DaVinciRemodel is online now  
Old 11-27-2017, 07:49 PM   #16
Safety Third
 
shanewreckd's Avatar
 
Trade: Concrete Carpenter. Concreepenter? Carpencrete?
Join Date: Oct 2014
Location: Northern BC, Canada
Posts: 510
Rewards Points: 196

Re: Board Formed Concrete Wall


Nailing in a few rows of wailers will also solve that problem, as long as it's braced at every level. With the rounded corners on all KD dimensional I just think this whole thing is going to look goofy regardless, some weird ridge patterns. Although I have been wrong before... I'm only here to see how it turns out
shanewreckd is offline  
The Following 2 Users Say Thank You to shanewreckd For This Useful Post:
asevereid (11-27-2017), SmallTownGuy (11-27-2017)
Old 11-27-2017, 07:59 PM   #17
Safety Third
 
shanewreckd's Avatar
 
Trade: Concrete Carpenter. Concreepenter? Carpencrete?
Join Date: Oct 2014
Location: Northern BC, Canada
Posts: 510
Rewards Points: 196

Re: Board Formed Concrete Wall


Quote:
Originally Posted by B.Johnson View Post
I think that ship lap would be a bad idea. Remember that it is a form and you are doing to end up with a reverse image.

I've never used rough sawn or reverse board and batten as a form, but wouldn't it be tough to strip?
I'm aware it's a mirror image, I just think the ship lap would eliminate the worst of the ridge patterns between boards, while adding strength to the joint. Enough form release/diesel and you can do it. I've also been using a furniture polish, can't remember the brand, that works better than anything else with the plasticized epoxy grouts I use in the mill. Expensive though, wouldn't want to use it on a retaining wall.
shanewreckd is offline  
Old 11-28-2017, 10:21 AM   #18
Pro
 
fjn's Avatar
 
Trade: mason
Join Date: Aug 2011
Posts: 4,536
Rewards Points: 9,114

Re: Board Formed Concrete Wall


For board formed concrete,it makes sense to use fiberglass wall ties. Unlike steel snap ties that need patching and potential rust marring the look,fiberglass ties are made to be cut flush,they blend in and are unobtrusive.


http://www.sigmadg.com/?gclid=CjwKCA...xoCJAAQAvD_BwE
fjn is offline  
The Following User Says Thank You to fjn For This Useful Post:
hdavis (11-28-2017)
Old 11-28-2017, 06:54 PM   #19
Pro
 
MarkJames's Avatar
 
Trade: Handyman Services
Join Date: Nov 2012
Location: Arlington, VA
Posts: 7,090
Rewards Points: 12,923

Re: Board Formed Concrete Wall


New development. For lack of a better term, they're bridging the two sides of the form to each other.
MarkJames is offline  
Old 11-28-2017, 07:00 PM   #20
Pro
 
hdavis's Avatar
 
Trade: remodeling
Join Date: Feb 2012
Location: CoastalME
Posts: 19,970
Rewards Points: 8,901

Re: Board Formed Concrete Wall


Quote:
Originally Posted by MarkJames View Post
New development. For lack of a better term, they're bridging the two sides of the form to each other.
Top to top, yes? This is a standard way to do it, but it should really be done earlier in the form build.

Advertisement

hdavis is online now  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Tall Residential Concrete Foundation Wall Question John 1979 Masonry 8 12-11-2016 02:19 PM
need help on bidding for concrete jobs! Bconcretegirl Marketing & Sales 15 12-04-2013 11:25 AM
Bathroom Design Help - dark floor and wall tile the same? sbcontracting Architecture & Design 23 10-02-2013 12:14 PM
Concrete Slab breaking up in Barn Dustincoc General Discussion 7 02-14-2013 06:44 PM
Lightweight concrete alternative in a condo DanFreysinger Flooring 17 11-14-2012 09:10 AM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?