Ours is 1-3/4-in. deep. When you position the holes for the adjustable shelf supports, don’t rely on measurements and arithmetic. Instead, position the tray inside the drawer box at least 1/8-in.

In most modern homes, any adjustable shelves or cabinets have metal shelf pins set inside conveniently spaced holes. Before the accoutrements of modern life, like easily replicated metal parts ...