Reply To: side bar only on home page

Refer for details: http://themonic.com/forums/topic/make-post-pages-full-width/

and try the following:

.single-post .site-content {
    width: 95%;
    border: none;
}
.single-post .below-title-meta {
    margin-left: -2.1%;
    width: 105.2%;
}
.single-post #secondary {
    display: none;
}