No Sidebar drops both rails and centers the article in a single col-lg-9, leaving roughly three-quarters of the container width for reading on desktop and the full width on phones. There's no order utility to explain here — nothing else on the page competes for position, so the markup is the plainest of the four layouts.

Reach for this arrangement when a page is the destination rather than a waypoint: a long-form article, a policy page, a single case study. Anything that benefits from a rail belongs on Left, Right, or Two Sidebar instead — adding one here later is a one-line change to the column class, not a rebuild.

The narrower measure — about 75% of the container instead of the full width — keeps line length readable without a rail forcing the issue.

This page still shares the same nav, feature strip role, and footer as the other three, which is the point of building layouts this way: the chrome never changes, only how much of it is column versus rail. Use the buttons in Components → Layouts above to compare all four.

A col-lg-9 measures wide on large screens, so treat this layout as a canvas for photo-heavy or wide-table content as much as for prose — both fit better here than squeezed into an eight-column rail.