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DSR213 recessed door straightener gives passage doors a built-in way to counter future warping during manufacturing, so finished doors stay straighter in everyday use. This Sugatsune America DSR213-1930-25 unit is designed as a partially recessed door straightener, so it sits into the door rather than on the surface, helping keep hardware protected during service. The straightener is intended for passage door hardware applications, so it fits cleanly into standard woodworking workflows for interior doors. With a 1930mm length, it spans a long section of the door, providing leverage to correct bowing over that run. The design is available for recessed and concealed installation, which supports clean visual results on exposed door faces while still providing access for adjustment.
This Sugatsune DSR213-1930-25 door straightener is installed at the time of manufacturing, so the routing for the partially recessed body can be integrated into door production steps. Because it is available for recessed and concealed installation, routing depth and cover cap placement can be coordinated with veneer, paint, or laminate schedules. Plus or minus 10 mm adjustment using the M4 Allen key from the top of the door lets technicians dial in straightness after the door is hung, while M8 slot wrench adjustment from the back of the door offers an alternative access point once trim and casings are in place.
The 1930mm DSR213 recessed door straightener is specified for passage door hardware applications, so it suits interior doors where future warping would affect latch engagement or visual reveals. Installing this unit at the time of manufacturing lets the door producer cut the partially recessed channel accurately, so the straightener sits flush and works with the cover caps. Because the model is available for recessed and concealed installation, it can be integrated into doors that require a clean appearance on both faces, such as corridor doors in woodworking projects. The 16 mm (5/8 inch) minimum door thickness requirement matches many engineered and solid-core interior doors, so it ties directly into typical shop stock and design sections used by door fabricators.
The DSR213 recessed door straightener is designed to protect doors from future warping by allowing plus or minus 10 mm adjustment over its 1930mm length, so installers can counter bowing that develops as site conditions change. Adjustment from the top of the door with an M4 Allen key lets technicians work from the door edge after installation, so they can fine-tune straightness without disturbing finished faces. The option to adjust from the back of the door using an M8 slot wrench gives another working approach, which helps when one side of the door is more accessible because of hinges, jambs, or hardware sets. Requiring 8 M4 (U.S. #8) flathead countersunk wood screws means the straightener is drawn tightly into its recess, so the mechanism seats consistently along the channel. Using the partially recessed design with cover caps keeps the hardware shielded, so the straightener can function while remaining visually discreet in passage door installations.
The DSR213-1930-25 recessed door straightener is specified for passage door hardware, so it is applied to passage doors where controlling future warping supports smoother operation.
The DSR213 recessed door straightener is installed at the time of manufacturing, so routing and recessing can be integrated into door construction steps before finishing.
The DSR213 recessed door straightener provides plus or minus 10 mm of adjustment, so bowing can be corrected in either direction along the door height.
The DSR213 door straightener can be adjusted from the top of the door with an M4 Allen key or from the back of the door with an M8 slot wrench, giving two access options.
The DSR213 recessed door straightener specifies a minimum door thickness of 16 mm, or 5/8 inch, so the recessed channel can be cut while retaining structural material.
The DSR213-1930-25 recessed door straightener requires 8 M4, U.S. #8, flathead countersunk wood screws, so fastener sizing and driver selection can follow that specification.
The DSR213 recessed door straightener with cover caps from Sugatsune America gives door manufacturers a defined way to build warping control into passage doors. With plus or minus 10 mm adjustment over its 1930mm length, minimum 16 mm door thickness requirement, and defined M4 screw interface, this unit offers clear parameters for integrating straightening hardware into your door line. Choose the DSR213-1930-25 when a partially recessed, adjustable straightener fits your passage door construction and you want hardware that supports long-term door alignment.