Building a Woody Using a Concrete Wall for Support

Hey, everyone!

I have an idea to build a two (4’ x 8’ each) panel woody using a concrete block wall (solid and 7’’ wide) as the main support.

I was imagining that the could use some sort of hook for mounting on the wall; both panels would lay lengthwise and I would use something at the base to prevent it from slipping out.

The idea of removing and storing the panels away, to prevent weathering, makes this idea appealing. Also, it’s a relatively minimal build project.  

Does this seem feasible? What do y’all think? 

Not feasible. Even a 4x8 panel with 1/2" osb (undersized) and 2x4 frame and t nuts/holds weighs too much to move around and store. 

If it's outside make everything out of PT wood even the plywood and have a tarp covering it when not in use. 

Doable

metolius has a template for the tnuts somewhere on their website.  Drill and install all the tnuts before framing it up. put a 2x4 frame behind the plywood. 4 pieces 8’ long length wide and the top and bottom 2x4x4’  

the only thing you’ll have to come up with is a mounting system on the wall.  The bottom of the framed walls can sit on a 2x4 mounted horizontally on the concrete wall and you can even make it adjust to an angle if you can use wire or wood to secure it.  Similar to how the gyms has it.  It’s better to keep it off the ground about 18” to make the bottom of the useable.

when done, you can unbolt it and lift it off the bottom track and store it.  It’ll be heavy but not unmanageable tbh  

Gris Sak wrote:

the only thing you’ll have to come up with is a mounting system on the wall.  The bottom of the framed walls can sit on a 2x4 mounted horizontally on the concrete wall and you can even make it adjust to an angle if you can use wire or wood to secure it. 

Well that's the issue, right?  How do you attached the 2x4 framing?   It's not a poured concrete wall, it's a cement block wall; I'm assuming 8" block which are mostly air.

For poured concrete you can just drill a hole and use expansion bolts.  I've never drilled a cement block but I suspect it would just crack, especially a standard light-weight one.   And I don't think they are rated for much of an outward force such as you'd get with a 45 degree woody.

Any pictures?

It’s basically the same as a poured concrete wall.  You can use a steel t-anchor or even blue screws.  Easiest way would be to drill then use blue screw a 2x4x8 every 12” o 16”.  Then attach your framed board to that.  

Tapcon or blue concrete screws are rated from 300lbs and up per screw assuming your drill it properly and it’s deep enough.  You can google it.  

Gris Sak wrote:

It’s basically the same as a poured concrete wall.  You can use a steel t-anchor or even blue screws.  Easiest way would be to drill then use blue screw a 2x4x8 every 12” o 16”.  Then attach your framed board to that.  

Tapcon or blue concrete screws are rated from 300lbs and up per screw assuming your drill it properly and it’s deep enough.  You can google it.  

There are specific fasteners for hollow block. Tapcons are made for solid concrete. If you don't know enough to give somebody that is clueless a margin of safety, why the fuck are you responding?

Redheads are the answer for hollow block drilled without a hammer drill.

5.samadhi Süñyātá wrote:

There are specific fasteners for hollow block. Tapcons are made for solid concrete. If you don't know enough to give somebody that is clueless a margin of safety, why the fuck are you responding?

I agree.   Ending up with cracked blocks in a weight-bearing wall (house?  Garage?) is a major f-ck up.

Redheads are the answer for hollow block drilled without a hammer drill.

But which Redheads?   The ones I've seen are great in shear, not worth much in tension.  And don't you need a special bolt gun for them?

Hey samadhi.

Tapcon is a brand with multiple type screws/anchors.  A simple search on google will explain to your dumb&$$ that blue screws can be used in hollow core blocks and it’s a certified method as well.  

I can’t tell the op what screws to use because I’m not at his house to see the wall.  However, what he is thinking about doing isn’t rocket science.  He’s looking for options and asking a forum not just your for input.  

I’m sorry but I am sure the experience I have in my pinky toe has more experience than you can ever fathom.  So chill.  No one needs this crap here or anywhere.  

https://www.itwredhead.com/portals/0/fmproductcatalog/documents/products/37/tapcontechnicaldata.pdf

Gris Sak wrote:

Hey samadhi.

Tapcon is a brand with multiple type screws/anchors.  A simple search on google will explain to your dumb&$$ that blue screws can be used in hollow core blocks and it’s a certified method as well.  

I can’t tell the op what screws to use because I’m not at his house to see the wall.  However, what he is thinking about doing isn’t rocket science.  He’s looking for options and asking a forum not just your for input.  

I’m sorry but I am sure the experience I have in my pinky toe has more experience than you can ever fathom.  So chill.  No one needs this crap here or anywhere.  

https://www.itwredhead.com/portals/0/fmproductcatalog/documents/products/37/tapcontechnicaldata.pdf

Ridiculous. You say tapcon everybody and their grandma thinks blue lag screw. You get called out, his climbing wall would collapse on him with blue tapcon screws into hollow block. You then agree with me, to use expansion bolts and call me an idiot. Stay golden, honky.

FYI I've actually built block foundations for a living, so I think your assumption about me is probably false ;)

5.samadhi Süñyātá wrote:

Ridiculous. You say tapcon everybody and their grandma thinks blue lag screw. You get called out, his climbing wall would collapse on him with blue tapcon screws into hollow block. You then agree with me, to use expansion bolts and call me an idiot. Stay golden, honky.

I say Tapcon and OP should do his own research.  You’re just a silly idiot that has way too much troll in his blood right now.  Go do something else

Gris Sak wrote:

I say Tapcon and OP should do his own research.  You’re just a silly idiot that has way too much troll in his blood right now.  Go do something else

Yes I heard you say what you said and I'm here to warn the OP your advice is dangerous.