Choose a spacer plate that matches the magnetic lock series and load rating, and confirm whether it mounts beneath the lock or behind the armature plate. For thick doors or installation-clearance needs, verify the spacer thickness, dimensions, mounting hardware, and finish against the door and lock assembly.

Use a spacer plate when a thick door or frame prevents an electromagnetic lock’s armature plate from aligning correctly with the lock. The spacer helps position the armature plate at the proper distance and may include mounting hardware to support installation on thicker doors.

Compare the spacer plate’s length, width, and thickness or depth with the available mounting space, noting that listed examples include 9-7/8 by 1 by 1/4 inches and 19-3/4 by 1-1/2 by 1 inch. Also confirm that the spacer matches your magnetic lock series and armature plate mounting arrangement, especially for thick doors.

Some spacer plates include hardware for mounting the armature plate, while others may not. Check the product specifications to confirm whether the spacer plate includes mounting hardware for your magnetic lock setup.