So here’s the beautiful truth: the average depth of a bookcase is just a number. What really matters is the stories you put inside it. Whether your shelves are 10 inches or 16 inches deep, they’re still a home for adventures, weird trivia, and those books you swear you’ll finish “this year.”
Your bookcase doesn’t care if it’s average. It just wants to hold your treasures while looking slightly dustier than you remember. And you know what? That’s enough.
So go ahead—measure your space, pick a depth that makes you happy, and fill those shelves with all the books (and one inexplicable rubber duck) that make your heart sing. You’ve got this. And your bookcase is deep enough—in every sense of the word.