Answer
Sep 10, 2025 - 08:45 AM
You may need a door straightener if your medium door, especially when using the Sugatsune LIN-X800 lateral opening system, is noticeably bent, bowed, or warped. This is particularly important for wood-based doors in humid environments, as warping can affect the smooth lateral movement and alignment of the LIN-X800 mechanism. Signs include scraping sounds, difficulty operating, or the door not closing flush. Testing with a string for uneven gaps will confirm the need for a straightener to maintain proper function and structural integrity.
