Cabinet doors and drawers fail because hinges loosen, slides become misaligned, handles break, or latches wear out. Most repairs involve tightening, adjusting, or replacing inexpensive hardware rather than replacing the entire cabinet.
Inspect cabinet hardware throughout your home. Open and close drawers and doors, identifying where they bind. Tighten all loose screws. Replace a broken handle or hinge to practice the skill on real hardware.
Cabinet problems almost always fail gradually rather than catastrophically, which means there is usually a repair opportunity at each stage before full replacement becomes necessary. Understanding this progression helps you intervene early and cheaply. The most common failure sequence: a screw loosens slightly → the hardware shifts out of alignment → friction and binding increase → the component fails completely. Each stage requires less effort to fix than the next.
From your study of fastener and hardware selection, you know that screw holding strength depends on matching the right fastener to the material. Cabinet boxes are typically made of particleboard or MDF — materials that hold screws reasonably well when new but strip easily if screws are overtightened or worked back and forth repeatedly. A loose hinge screw in particleboard is a classic example: the screw hole has enlarged from vibration over time. The fix is not simply re-tightening (the material is gone), but using a longer screw, inserting a wooden toothpick with wood glue to fill the hole, or switching to a larger-diameter screw that bites into fresh material.
European-style hinges (the cup hinges found inside most modern kitchen and bathroom cabinets) are unusually forgiving because they are designed for adjustment. Three screws control three axes of movement: in/out depth, left/right lateral position, and up/down vertical position. If a cabinet door does not close flush, hangs crooked, or overlaps its neighbor, the fix is usually a few small turns of these adjustment screws — no removal required. Take time to identify these screws on your own cabinets and experiment with small adjustments; the mechanism is intuitive once you see it.
Drawer slides fail in two ways: the rollers or ball bearings wear out from friction and load, or the slide itself bends slightly from overloading. In both cases, the slide is an inexpensive component sold by length at hardware stores — remove the drawer, unscrew the old slides (both the cabinet-mounted and drawer-mounted halves), and install new ones. Full-extension soft-close slides are a common upgrade worth making while you have the drawer out. Handles and knobs are pure bolt-through hardware — unscrew from the back and swap. The only complexity is hole spacing, which is measured center-to-center when two screws are used.