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DSR213 recessed door straightener is designed to protect doors from future warping by integrating a straightening mechanism into the door at the time of manufacturing. This 1524mm DSR213 recessed door straightener with cover cap works as a structural stabilizer along the door length, so the installed door resists twisting that can cause poor closing, rubbing, or uneven reveals. The model is part of Sugatsune's door straightener line, used on passage doors where maintaining a flat plane helps hinges and latches operate smoothly over time. The unit is recessed into the door to keep the hardware out of the way of normal use while still applying corrective force. By installing this straightener during door construction, fabricators build in a way to counter movement, supporting long-term alignment of the slab within the frame.
The 1524mm DSR213 recessed door straightener is intended for installation at the time of manufacturing, so the straightening element becomes part of the door build rather than an afterthought. The design supports recessed and concealed installation approaches, which allow the straightener to sit within the door structure and stay out of the user path while still influencing flatness. A minimum door thickness of 16 mm, identified as 5/8 inch, means the product is sized for doors meeting or exceeding that thickness, aligning the hardware body with the available material depth. The hardware requires eight M4, referenced as U.S. #8, flathead countersunk wood screws for installation, so the fastening pattern uses commonly identified screw sizing to secure the straightener into the door substrate in a predictable way.
The Sugatsune America DSR213 recessed door straightener is categorized under builders hardware and passage door hardware, so it fits into projects where door slabs need long-term dimensional stability within a frame. Its partially recessed format aligns with doors that can accept a straightener set into the face or edge without compromising the 16 mm minimum thickness, supporting both wood-based and other suitable door constructions that match that dimension. The product is described as available for recessed and concealed installation, which positions it for applications where visible hardware on door faces is undesirable and a more integrated structural component is preferred. With a length defined as 1524mm, and referenced in the description as 48-64L recessed door straightener, it serves larger doors where a longer corrective member is practical for countering bow or twist over significant height. Being part of Sugatsune's DSR213 series that is installed during manufacturing, it aligns with production lines or shop builds where warping prevention is designed into the workflow rather than addressed later by ad hoc fixes.
The 1524mm DSR213 recessed door straightener is described as offering plus or minus 10 mm adjustment, so the straightening force can be tuned within a 20 mm range to react to the specific warp of each door. This adjustment can be made from the top of the door using an M4 Allen key or from the back of the door using an M8 slot wrench, giving fabricators two access points that match different installation orientations and shop preferences. Being able to adjust from either the top or back means the door can remain hung or clamped while fine-tuning the straightness, supporting efficient alignment during setup. As a partially recessed unit with cover caps, the mechanism is set into the door and visually covered while still allowing the described tools to reach the adjustment points, combining a concealed look with serviceable functionality. The manufacturer reference DSR213-1524-25 identifies this specific length and configuration, enabling repeat ordering for matching replacements or additional doors that require the same adjustment capability in future runs.
The DSR213 recessed door straightener is designed to protect doors from future warping by applying adjustable straightening force, helping doors stay flatter so passage door operation remains consistent.
The DSR213-1524-25 door straightener is installed at the time of manufacturing, so the straightening function is built into the door from the start of its construction.
The DSR213 recessed door straightener allows plus or minus 10 mm adjustment from the top of the door with an M4 Allen key or from the back with an M8 slot wrench.
The DSR213 recessed door straightener is specified for a minimum door thickness of 16 mm, which is described as 5/8 inch, aligning the recessed body with that door depth.
The DSR213 door straightener is described as partially recessed and available for recessed and concealed installation, so it sits within the door while keeping hardware exposure low.
The DSR213 recessed door straightener requires eight M4, noted as U.S. #8, flathead countersunk wood screws, creating a consistent fastening pattern along the unit.
The Sugatsune America 1524mm DSR213 recessed door straightener with cover cap gives door manufacturers a defined way to counter warping using an adjustable, partially recessed member. Its plus or minus 10 mm adjustment range, recessed and concealed installation options, and 16 mm minimum door thickness specification align this model with production doors that need controlled flatness. By using the DSR213-1524-25 reference, projects can repeat the same straightening setup across multiple passage doors where consistent operation and appearance are priorities.