The links below are what I bought at the start of last winter. Setup works great for me. The mat is on a concrete garage floor and hasn't caused me any issues. IF the garage floor is smooth I'd suggest some carpet grip underneath. I was getting some rotation which caused offline starts on my launch monitor. I have a pretty high swing speed and lots of back foot pressure. Net size was probably overkill but I wanted extra wide the sides since my kids sometimes hit too.

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Net - https://www.amazon.com/gp/product/B09N3FP2W7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1&psc=1

Mat - https://www.amazon.com/gp/product/B003E6L1O6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1