Blocking For Kitchen Cabinets

Essential Considerations for Blocking Kitchen Cabinets

Blocking is a crucial step in installing kitchen cabinets, as it ensures that they are securely fastened and aligned. By strategically placing wooden blocks behind the cabinets, you can create a sturdy base that supports their weight and prevents them from shifting or sagging over time.

Here are some essential aspects to consider when blocking for kitchen cabinets:

Determine the Blocking Type: There are two main types of blocking used for kitchen cabinets: face frame blocking and frameless blocking. Face frame cabinets have a front frame that conceals the cabinet box, while frameless cabinets do not. The type of blocking you use will depend on the cabinet style.

Choose the Right Blocks: For blocking, use solid wood blocks that are at least 1-inch thick and wide enough to span the width of the cabinet. Avoid using particleboard or plywood, as they may not provide sufficient support.

Layout and Spacing: The layout and spacing of the blocks are critical. For face frame cabinets, blocks should be placed at the top, bottom, and center of the cabinet box. For frameless cabinets, blocks should be placed every 12-18 inches along the vertical edges of the cabinet box.

Secure the Blocks: Use wood screws to fasten the blocks securely to the cabinet box. Countersink the screws slightly below the surface of the wood blocks to prevent them from interfering with the installation of the cabinets.

Level and Align the Cabinets: Once the blocks are in place, use a level to ensure that the cabinets are level both vertically and horizontally. Make any necessary adjustments to the blocks as needed to achieve perfect alignment.

Additional Tips: For tall cabinets, consider adding additional blocks at the top and bottom to provide extra support. If your cabinets have adjustable shelves, use blocks to support the shelves and prevent them from sagging.

By carefully following these steps, you can ensure that your kitchen cabinets are properly blocked, providing a sturdy and stable foundation for your kitchen design.