New shop

[cooperino]

Originally Posted by darkminion_17

Even the honey dippers are backed up!
Do you have it covered?

I was thinking "tenting" it also. not sure how big it is but might be worth doing that.

[Oak]

I don't think that will work. The slab is 40'x60'...might need a circus tent.

[Oak]

Another monthly update.

I have done everything so far by myself except dig the footings so that is why it is taking so long.

I ran into an issue on how to install the vertical uprights for the form boards because the concrete footer is wider then the outside of the slab. This made it so I couldn't drive in the post to screw the boards to.

I hope this works. I purchased a 20' stick of 1.5"x1.5"x1/4" angle iron and used (2) 2" Tapcon screws to secure the angle iron to the footer.
DSCN4103.jpg

I tried to use my 20 volt DeWalt hammer drill but that took forever to drill so I decided to use that little coupon I received in the mail to get me a Chilti (Chinese Hilti) Wow, for $69 this thing is a beast. I could probably drill 4 holes with the Chilti to one with the DeWalt.
Chilti.jpg

The form boards I'm using are 16' 2x10's & 2x6's. On Saturday I got the top form board run all the way around set to the proper height.
DSCN4097.jpg DSCN4100.jpg DSCN4101.jpg Forms.jpg


I have a few questions.

Will the vertical form supports being around 4' apart be enough support to hold back the concrete? I will probably put some fill dirt behind them before I pour. When you take your foot and push out on them they feel pretty sturdy.

I figured I would check my diagonals one last time and they are both spot on at 72' 1/2". They should be 72' 1 21/64. There is a difference of 0.828, is that close enough?

I shot the entire top board with my transit and the back left corner as seen in the last pic is about 1/4" low. I can raise it up but is that another "close enough" call. It would probably take a couple hours to raise everything going to that corner up to where it should be.

[cooperino]

Is your form oak or pine? All the guys here use oil soaked hard wood. And the are 2' apart. I'm afraid at 4' you will see the boards bow and push out. Better safe than sorry at this point. I would really beef that up quite a bit more. Are you pouring right to the top of it?

[twoton]

If you're concerned about it you could add a 2 x 4 wailer at the top of your 2 x 10. Either nailed on top flush with the inside edge, or on the outside, screwed on from the inside. Add some 2 x 4 diagonals on the flat at your corners that you can remove after the concrete is placed and consolidated.

And don't pour piss!

[hyperlightboards48]

I had a monolithic slab pored last spring, been slowly finishing my shop as money and time comes. I paid to have the concrete work done as it wasn’t my wheel house and paying the contractor cash was very close to my costs after rentals and tools purchased.

Here is a pic of the form set up. The second picture is a 28 foot run and I see about 8 braces which is roughly 3.5 feet but if you consider the corners to be braced that would make 10 braces and the spacing less than 3 feet apart.

I don’t have any advice for you, but figured I would share what I recently had done.

Good luck with the rest of the build!

[Oak]

The 2x10 form boards are #2 southern yellow pine and the 2x6's are #2 spruce.

Okay, looks like I need to add more bracing but I like the idea of adding the nailer to the top too.

I didn't want to do my own forming and rebar but construction here in the Atlanta area is booming like it was before the big housing crash. Contractors stick it to you if you are Joe homeowner.

[darkminion_17]

Looks neat, are you pouring a 9 1/2" slab?
Set your transit in the center of the slab area, more accurate. You nee more braces too.

[Oak]

Originally Posted by darkminion_17

Looks neat, are you pouring a 9 1/2" slab?
Set your transit in the center of the slab area, more accurate. You nee more braces too.

No, it will be around 6" but now I need to bring in some crushed stone. What stone is best for this?

I would have set the transit in the middle but I have my wife looking through it and I don't need her braking an ankle stepping over all the grade beams and drains hidden under the plastic. I'll move it to the center today and check it again.

I've been doing some more reading and you guys are correct....again, I need more braces.

[darkminion_17]

3/4 crushed, looks like a lot of stone, are you putting it in?
We used to have the concrete truck filled with gravel and then shoot it in.