Great video but I used small screws instead of nails so I could prevent the wavy result and easily remove the strip later if needed. You could put small washers as shims underneath first to help prevent the wavy sag.
This works good works even better with dab of construction adhesive in hole also get or make threshold from hardwood then use trim screws to secure composite thresholds are junk they break would also use tack strip behind threshold not on top
I live in a rental, I hate asking the real estate to come over, The hallway to my bathroom is carpeted until the tiles I the bathroom all on a concrete slab, the carpet was worn exposing the spike strip I bought the same threshold and was wondering how am I going to get this onto the concrete? Just as I was going to the Home Depot I decided to look at RU-vid and there you were! thank you so much. I had everything in the garage!
Did he bother stretching that carpet before he did this? It's NOT going to hold up when they vacuum.. Is he trying to crack the concrete with that hammer?