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-   -   Ready to start digging the footers for my deck. (http://www.diychatroom.com/f19/ready-start-digging-footers-my-deck-157960/)

Bugman1400 09-25-2012 03:09 PM

Ready to start digging the footers for my deck.
 
I am ready to string my mason's line as the centerline of my footers. My centerline needs to be parallel to my house 15 feet out. However, the dirt grade slopes away from the house and drops down about 2-3 feet. So, the question is how to ensure I am square with the house and exactly 15 feet out. The deck will be a second story deck.

I was thinking of using a PLS90 or PLS180. What do you guys use on grades that are not flat?

robertcdf 09-25-2012 03:42 PM

Personally I'd build the deck on temp supports and then plumb bob down and then dig the holes.

bob22 09-25-2012 04:17 PM

Plumb bob and a can of spray paint to mark the ground should do it.

allthumbsdiy 09-25-2012 09:14 PM

Instead of using laser tools, I just setup taller batterboards at the lower side, strung some lines and measured.

http://imageshack.us/a/img843/9116/a...eckfooting.jpg

Just make sure to:

1. take diagonal measurements to make sure they are the same;
2. each corner should measure 3'-4'-5' to make sure corners are 90 degrees

I don't know about your case, but my house was actually built slightly askew so by following the footprint of the house, my deck "encroached" on the property line by 4" so I had to get a waiver from my zoning dept.

So check with your building/zoning depts to make sure you are in the clear before pouring your footings.

Good luck

joecaption 09-25-2012 09:20 PM

But never use 1X's as batter boards, use 2 X 4's instead.
1 X 's will flex as you try to pull the string tight.

allthumbsdiy 09-25-2012 09:27 PM

Joe-

I agree with you except my house sits on top of bedrock near what used to be a copper mine :(

Whenever I dig, about 10% is dirt. Everything else is chunks of large rocks.

I even had to rent a Bobcat with an auger attachment to dig those holes or would have taken me couple of months to hand dig them.

So yes, use 2x4 if you actually have dirt :)

Davejss 09-25-2012 10:41 PM

Quote:

Originally Posted by robertcdf (Post 1017156)
Personally I'd build the deck on temp supports and then plumb bob down and then dig the holes.

That's how we've been doing it for years.


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