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-   -   South FL Building Codes (http://www.diychatroom.com/f19/south-fl-building-codes-24591/)

Matty16 08-01-2008 03:51 PM

South FL Building Codes
 
Does anyone do any work in South Florida? I am building a Pergola and would like to know how deep to cement the posts into the ground to comply with Hurricane ordinance. I'm planning on going 4' down with about 4-6" of gravel at the bottom.

Please let me know, if you know!

concretemasonry 08-01-2008 05:06 PM

South FL Building Codes
 
Check with your local code officials. they must have some acceptable standards because of the local concerns for projectiles during hurricanes and tornadoes. It would be a shame for your pergola become a weapon.

Dick

agrace 08-01-2008 05:18 PM

Depth
 
Yep, check with the bldg dept. In Mich for every 2 ft above ground you have to have 1 ft in ground. We have an 9ft Pergola with 6X6'S for supports & about 4 ft (+) in the ground. The city comes and measures the depth before you put the posts in too!! We packed it with small pea gravel for 3 feet or so and soil at the top so the pressure treated lumber has some below ground drainage around it. There are 2 swings on it and it isn't goin anywhere! Been up since 1996 and thru a few Mich wind storms, ice, snow etc. Just my experience with our Pergola.:)

Big Bob 08-02-2008 10:11 AM

You will have more than how deep to set your posts to be concerned with it you are in the HVWZ in S FL. straps / hangers / tie-downs

Hire a structural engr, they might be able to design this so it doesn't look like an erecktor set. Shouldn't be more than $ 300- $ 500. Some will even walk this thru the permitting process for you.

do this with out a permit and they may make you take it down. ( don't comply with your red tag?)
They can kill the power to your house...

Joe Carola 08-02-2008 10:30 AM

Quote:

Originally Posted by Matty16 (Post 144920)
Does anyone do any work in South Florida? I am building a Pergola and would like to know how deep to cement the posts into the ground to comply with Hurricane ordinance. I'm planning on going 4' down with about 4-6" of gravel at the bottom.

Please let me know, if you know!

You can get the answer as soon as you call your code official.

Yoyizit 08-02-2008 11:52 AM

Quote:

Originally Posted by Matty16 (Post 144920)
I'm planning on going 4' down

FYI, for a nominal 4x4'" post in an 8" dia. hole, I figure 1 cu. ft. of concrete is needed for each 45" of depth.

Joe Carola 08-02-2008 12:58 PM

Quote:

Originally Posted by Yoyizit (Post 145171)
FYI, for a nominal 4x4'" post in an 8" dia. hole, I figure 1 cu. ft. of concrete is needed for each 45" of depth.

You're in Maryland, he's in Florida. He has to follow his codes.

Yoyizit 08-02-2008 01:41 PM

Quote:

Originally Posted by Joe Carola (Post 145189)
You're in Maryland, he's in Florida. He has to follow his codes.

I wasn't clear. This is a general formula for figuring the space between "square pegs in round holes" if he needed it and if the local codes allow him to sink posts in this way.
:huh:

Big Bob 08-03-2008 07:25 AM

http://www.floridabuilding.org/BCISOld/bc/default.asp

have fun


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