Concrete thickness around fiberglass pool

[nobueno]

I thought we finally had a pool builder but he is saying in order to warranty the pool, he wants to put 5' wide 16" thick concrete with rebar around the pool to the tune of $15,000. Is this really necessary? All of his other prices were pretty reasonable (for our area) and I feel like this is just his way of making his margin back.

 

[ajw22]

The company providing the fiberglass pool usually specifies the minimum collar requirements. What manufactures pool is being proposed? Find out directly from that company what they specify.

 

[Texas Splash]

FYI - From the Viking manual ....

Viking Pools recommends concrete decking. Concrete should be poured at least 3’ around the perimeter of the pool and at least 4” deep.

 

[nobueno]

FYI - From the Viking manual ....

Thanks, we are getting a Viking pool, sorry for leaving that out of the initial post. Is there much to be gain by pouring concrete so deep around the pool? 5' perimeter I'm fine with but 16" deep the whole way?? I'm not planning on driving a truck on it.

 

[mknauss]

I wonder if the thickness of the concrete proposed is due to freeze depth? In your area I suspect it is less than 16". But more than a few inches.

 

[jimmythegreek]

Nothing at all and a bad idea. That's alot of weight hanging of the beam if the ground settles. 4 ti 6 max is all that's needed. Can be thicker near coping if you are doing cantilever. Show him the viking specs ask him why he wants it

 

[nobueno]

I wonder if the thickness of the concrete proposed is due to freeze depth? In your area I suspect it is less than 16". But more than a few inches.

Frost line is 30" around here.

 

[mknauss]

OK. Frost map does not show that deep based on your location, but you would know the real data.