fluid-fixed-fluid Layout using Bootstrap

fluid-fixed-fluid Layout using Bootstrap

but I've read a lot of others)
I'm trying to create a fluid-fixed-fluid layout for my portfolio site.
I've tried a few different options online, but everyone I see either
offers a fixed-fluid-fixed or a layout which has the two fluid columns off
to the side.
I'd love to have a straight-forward 1024px with middle (content) section
with two supporting fluid columns beside.
I don't have much code to provide, but I'll create some sort of example
for go by.
Thanks in advance - I feel kind of dumb asking this, but I haven't had to
think about web in a couple of years and now I feel way behind.
<div class="row-fluid">
<div class="span3"></div>
</div>
<div id="row-fixed">
<div class="span6"></div>
</div>
<div id="row-fluid">
<div class="span3"></div>
</div>