Age and wear can lead to wood cabinets to fall apart, but never to crumble. It takes a different, apparently innocuous, substance to induce actual crumbling.
Water Is to Blame
Moisture is the culprit behind crumbling wood cabinets. It’s particularly damaging to pressed laminate and wood cabinetry since it dissolves the adhesive that holds the wood fibers together. Water can come from a leak in the pipes, a leak in the roof, or high humidity in the room. Even a small quantity of water can be wicked up into the wood and cause harm, such as dry rot. Finally, the wood begins to fall apart and crumble. Long-term moisture can lead to mold and mildew to develop, which deteriorates the internal construction of the timber. The remedy is to eliminate the source of water or decrease humidity. Sections of the cabinet that are crumbling must be replaced.