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DSR213 recessed door straightener is designed to protect your doors from future warping by being installed at the time of manufacturing, so the door stays straighter in service and reduces rework on problem panels. This 2700mm DSR213 recessed door straightener is a passage door hardware component, so it fits naturally into builders hardware workflows for full-height or tall doors. The straightener is described as partially recessed, so it sits into the door rather than on the face, helping keep a cleaner look along the door edge. Sugatsune America identifies this model as DSR213-2700-25, which ties ordering and job documentation back to a specific, repeatable part number. The product is presented with a cover cap in plain, nickel, and white, so the visible section aligns with surrounding hardware finishes on the job.
The DSR213 partially recessed door straightener is designed for recessed or concealed installation, so it can be machined into the door during manufacturing and left unobtrusive in the finished opening. This model provides plus or minus 10 mm of adjustment that can be made from the top of the door with an M4 Allen key, so installers can load or relax the straightening force from the head of the door after hanging. The same plus or minus 10 mm adjustment can also be made from the back of the door with an M8 slot wrench, so shops and field crews have two access points depending on door design and surrounding trim conditions.
This DSR213-2700-25 door straightener has a 2700mm length identified in the product name, so it suits tall door applications where long-span control across the stile is needed. The product is categorized as builders hardware and passage door hardware, so it fits into standard door construction on interior projects where warping control is important. The web description explains that Sugatsune door straighteners are installed at the time of manufacturing to prevent warping, so they become part of the original door build rather than a retrofit piece. The design is described as partially recessed with a cover cap in plain, nickel, and white, so it can coordinate visually with edge details while still sitting into the material of the door leaf.
The DSR213 recessed door straightener provides plus or minus 10 mm of adjustment, so fabricators and installers can apply controlled tension rather than relying on a fixed bar, which helps tune out bow that appears over time. Adjustment from the top of the door with an M4 Allen key allows access from the head of the door, so fine-tuning can be done after the door is hung without disturbing the faces. Adjustment from the back of the door with an M8 slot wrench offers another access route, so shops can set an initial preload before finishing or hardware fitting. The minimum door thickness of 16 mm, or 5/8 inch, defines the thinnest door construction into which this straightener is intended to be recessed, so it guides door design and machining decisions. The installation requires 8 M4 (U.S. #8) flathead countersunk wood screws, so the load is spread along the length of the straightener and the hardware beds flush into prepared holes in the door. The model is identified under manufacturer part number DSR213-2700-25, so it provides a clear reference when repeating a successful setup across multiple doors or projects.
The DSR213 recessed door straightener is installed at the time of manufacturing to protect doors from future warping, so tall or long doors stay flatter over their service life.
The DSR213-2700-25 straightener is specified as 2700mm, so it spans most of the door height and provides warp control across a tall stile or edge.
The DSR213 recessed door straightener is specified for a minimum door thickness of 16 mm, or 5/8 inch, so doors at or above this thickness can be machined to accept it.
The DSR213 straightener offers plus or minus 10 mm adjustment from the top with an M4 Allen key or from the back with an M8 slot wrench, so tension can be tuned in either direction.
The DSR213 door straightener is described as partially recessed and suitable for recessed and concealed installation, so it sits into the door and keeps visual impact low.
The DSR213-2700-25 straightener requires 8 M4 (U.S. #8) flathead countersunk wood screws, so it anchors along the door edge with screw heads sitting flush.
The DSR213 recessed door straightener from Sugatsune America combines a 2700mm length with plus or minus 10 mm adjustment, so it suits tall doors where warping control and post-install tuning are important. Its partially recessed, recessed or concealed installation style supports clean door lines, while the 16 mm minimum door thickness and specified screw size define the construction it is designed to work with. For projects using passage door hardware where long-term flatness matters, this DSR213-2700-25 offers a clearly defined, repeatable hardware choice.