[@acekin Participant 13 years, 1 month ago]

I ended up adding a new CSS rule to my theme’s CSS file, luckily bbPress uses a unique class on the page. Adding the following removed the sidebar from my theme, which is based on Genesis:

body.bbpress .sidebar {
display: none ! important;
width: 0px;
}

body.bbpress #content {width: 920px;}

Keep in mind that the content width of 920px is based on my theme’s container and you may need to adjust it to suit your needs.

Here is my installation:
http://www.psri.us/forums