WordPress iframe

All,

I am developping my own site + quite similar sites for my customers. What I want to do is the following:

I’ll try to explain!!;-))

for example:
=> I use the template builder to create a page with 3 columns.
(each column links to a specific “small” page I’ve created)

=> On the customers-sites, the first 2 columns are filled with their fixed data. (adress,…) The third column I want to be linked (with wordpress Iframe) to the page linked to the third column on my own site.

So when I change the page linked to the third column on my site, it will also should change at the customers site.

Is this possible?

Ps: the iframe-plugin is working, but it doesn’t display just the specific page (like it is shown in my third column), but it displays the whole page including the header, footer,…)

Thanks already!