Tear off a small piece of masking tape and place it on the hardwood floor to identify the joist.
Floor joist sensor.
In most cases the 5 stud finders that you sometimes find at home improvement stores won t work to find studs under a carpeted floor.
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If you don t have a stud finder or if you don t have one that supports a deep scanning option you need to purchase a stud finder that you can use to locate the joists underneath the carpeting on your floor.
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It works as a ruler and leveler as well ensuring minimal interruption while working.
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For automated lighting applications a pulsor woud be installed under the floor joist and use a larger oval of detection.
Step 4 place the end of a tape measure directly on the center of the masking tape and stretch it to the left or to the right for 16 inches.
The franklin sensors fs710 professional stud finder is our best recommendation for floor joists.