Right Sidebar

Same eight/four split as the left-sidebar page, mirrored: the article sits first in the markup and the rail follows after it, so there's no order utility to write — the stacked mobile order matches the source order for free. Desktop readers get the same two-column read, just with the map on the other hand.

This arrangement suits content that doesn't need a map at all, but benefits from one anyway — a long-form article with related links off to the side, a product page with specs in the rail, a case study with a project index nearby. The rail supports the read instead of preceding it.

Everything else about the page is identical to its left-hand twin: same widgets, same footer, same theme switcher up in the nav. Only the column order changes — which is really the whole point of shipping both. See how the rail disappears entirely on the no-sidebar page.