LACK-LINK System – Shelf Joining brackets for IKEA LACK shelves

The LACK-LINK system is a set of clamp on shelf joining brackets designed to connect IKEA LACK shelves together, keeping them level, aligned, and mutually supportive.

By mechanically linking adjacent shelves, LACK-LINK allows them to share load and maintain consistent alignment, reducing independent movement and improving overall rigidity. This makes the system well suited for corner layouts, extended shelf runs, and functional builds.

What’s included

• Straight connector – joins two LACK shelves in a straight line
• L-shaped connector – joins shelves at a 90° corner

Both connectors are designed to fit securely over the shelf ends and hold them flush and even.

Why use LACK-LINK

• Maintains consistent shelf alignment
• Improves stability by allowing shelves to support each other
• Simple installation without modifying the shelf
• Useful for workshops, enclosures, storage, or display setups

Printing recommendations

• Material:
  • Printed and tested in PLA
  • PETG is recommended for better toughness and long-term durability
• Walls / Perimeters: Increase wall count for added rigidity
• Infill: Use slightly higher infill than standard decorative prints

Notes

• Designed around IKEA LACK shelf dimensions
• Printed on my P1S they fit perfectly, but the fit may vary due to printer tolerances; small scaling adjustments (±1–2%) may help
• Not intended as a replacement for proper wall mounting; serves as a support and alignment system