The phrase "on the same shelf" is correct and usable in written English.
You can use it when you are describing two objects/items as being placed in the same area: "I put my favorite books and CDs on the same shelf for easy access."
I won't indulge a tedious examination of how every column and lateral shelving space in my collection tends to work around this frame, jumping from one principle to another, sometimes on the same shelf.
The name-brand and private-label products often appear on the same shelf, or very near one another.
In perusing the American history section in the Providence Athenaeum, one might glance through a recent book on Hurricane Katrina and find on the same shelf a century-old volume of "The Winning of the West" by Theodore Roosevelt.
(It could sit on the same shelf as "The Colored Museum" and "Jelly's Last Jam").
"A Child's Day" hardly belongs on the same shelf as Neil Gaiman's book, but the alphabet format works for both.
The hotdogs are all stoney dude-bros hanging out fractiously in their plastic packaging, flirting with the buns on the same shelf.
No. Surely it couldn't be that while it is possible for a man to write a whole book about masturbation (Roth yet again) and be regarded as an important writer, a woman can't even attempt one such scene without being shoved on to the same shelf as Fifty Shades of Grey and Black Lace Quickies?
It is being heard now around the Atlanta Falcons' Matt Ryan, who seems on the verge of jumping onto the same shelf as those Super Bowl-winning quarterbacks.
But on the same shelves there are other books – the pulp fiction thrillers of Edgar Wallace; the schlocky master criminal Fantômas novels; a David Lodge; an unread Ulysses.
They have expanded four times since, to 17,500 feet, including a cafe, and now have 120,000 titles, with used and new books mixed on the same shelves.
That led to a review by several members of the Grand Canyon staff, who recommended that the book remain on the same shelves with books that offer evolutionary explanations of how the park formed.
