Multipoint Door Lock: OEM Buyer Specification Guide

Allen Wang | CEO and Founder, HIPAD
Updated: September 24, 2026

A multipoint door lock links a central gearbox to two or more locking locations along the door edge. OEM approval must align door thickness, faceplate, gearbox, rods, locking points, handle, cylinder and keeps as one system.

Published application range

HIPAD’s supplied reference lists multipoint locks for 40-80 mm entrance doors. This family-level range does not mean one lock fits every thickness or profile. The selected model still needs a dimensioned drawing and installed sample.

Map the gearbox and rods

Start with the door-edge preparation and central gearbox position. Record the backset, handle-to-cylinder centers, spindle section and faceplate. Then define the rod or extension connections and the exact location of every hook, bolt, roller or other locking element.

Compared with a single-point replacement lock, a multipoint system adds cumulative tolerance along the full door height. A small error at each connection can prevent all points from reaching their keeps at the same time.

Match handles, cylinders and keeps

Confirm handle spindle engagement, fixing centers and clearance around the gearbox. State the cylinder type, length and cam requirement. For each keep, document the frame profile, offset, fixing support and required engagement. The keeps should secure the door without forcing it out of alignment.

Six steps before OEM sampling

1. Freeze the finished door and frame profiles.
2. Mark the gearbox, faceplate and machining dimensions.
3. List every locking point, connection and keep position.
4. Confirm handle, spindle and cylinder interfaces.
5. Install the complete system on a production-intent door and frame.
6. Approve operation, finish, packaging and inspection criteria.

Edge case: door movement under load

A sample can operate on a bench yet bind after the door is glazed, clad or installed. Check engagement with the finished door weight, seals and frame tolerances. Adjustment may help alignment, but it cannot correct an incompatible gearbox or incorrectly positioned keeps.

Material, finish and quotation evidence

The source library identifies steel/zinc-alloy and brass/steel options across related lock families, but it does not disclose a universal product certificate number, security grade, price or MOQ for every multipoint model. Request model-specific material, finish, cycle, load or security evidence where the project requires it.

HIPAD describes OEM/ODM support for dimensions, structures, finishes, logos, molds and packaging. Tooling, MOQ, price and lead time require a project quotation.

FAQ

What door thickness does the published range cover?

The supplied reference lists multipoint locks for 40-80 mm entrance doors. Exact fit depends on the selected model and door profile.

Can I select a lock from backset alone?

No. Also define centers, follower, faceplate, locking-point layout, connections, handle, cylinder and keeps.

Should all locking points engage at once?

The installed system should reach the model’s intended engagement without excessive force. Verify this on the finished door and frame.

Can HIPAD customize the layout?

HIPAD supports drawing-based OEM/ODM review. Feasibility depends on the door system, quantities, tooling and performance requirements.

Prepare the RFQ

Send the door and frame profiles, finished thickness, faceplate, gearbox, backset, centers, locking-point layout, handle, cylinder, keeps, finish, quantity and tests. Review Window Locks with Key, die lock systems range, die window lock OEM guide, die lock and keeper selection guide und contact HIPAD for model-specific confirmation.

About the author

Allen Wang is CEO and Founder of HIPAD. He began as a technical engineer in 1998 and focuses on manufacturing, tooling, quality, OEM/ODM development and architectural hardware supply.