Mattress Forum

This is my first post. I have been lurking around the forum for several months. I am probably going to purchase a king size mattress from Sleep EZ soon. I am considering an 8500 or 10000 organic model.

I am considering  purchasing the foundation for the mattress locally to save some money on purchase of the foundation. I asked Shaun at Sleep EZ about using a standard foundation and he said it would be fine as long as the slats were no more than 3" apart.

After checking with my local bed retailer I have found that the standard spacing for what they are calling a standard "Tritan" foundation is 12" apart. They claim that no manufacturers are making a foundation with the slats anywhere near 3" apart.  I thought that I have seen several post by people that were indeed using standard foundations from the major manufacturers under their latex mattresses. 

Does anyone have any experience with using a standard foundation under their latex mattress? Is the 12" slat spacing O.K. or will it be a problem under the latex mattress?