I used these to fill in the space between the support beams and the old tongue and groove floor board. That creaking and groaning has been around for a long time. My partner rocked them back and forth and I used these spacers to try to cut in where they came from. 80% of squeaks eliminated in 15 minutes. It looks like a miracle. Maybe you can get a cheaper kit for this job. But they worked absolutely fine and if I had known that I would have bought them a long time ago.