Determining the optimal number of hinges for a cabinet door ensures smooth operation and long-term durability. Industry standards recommend 2–3 hinges per door for most applications, but this depends on factors like door dimensions, material weight, and hinge specifications.
Key Considerations:
- Door Size and Weight
- Lightweight doors (e.g., thin plywood or MDF under 12mm thick): 2 hinges suffice.
- Standard doors (15–25mm thick, 60–90cm height): 3 hinges provide balanced support.
- Heavy or oversized doors (thick solid wood or widths exceeding 90cm): Add a fourth hinge to prevent sagging.
- Hinge Type and Load Capacity
Soft-close hinges typically support 6–12kg per hinge. Verify the manufacturer’s weight rating to avoid overloading. For example, a 15kg door requires 3 hinges rated for 5kg each. - Door Style and Usage
Full-overlay doors may need additional hinges for alignment, while inset doors rely on precise hinge placement. High-traffic cabinets benefit from extra hinges to reduce wear.
Installation Tips:
- Space hinges evenly. For 3 hinges, position the top one 7–10cm below the door’s upper edge, the bottom one 7–10cm above the lower edge, and the third centered.
- Use a jig for consistent screw placement.
Maintenance Advice:
Clean hinges annually and lubricate with silicone spray to maintain quiet operation. Inspect screws for tightness, especially in humid environments.