I bought some roll up rubber mats which are available in various widths on rolls for bulk purchase.
I bought 2 pcs of 4 foot wide by 10 foot long mats (2 rolls) and use it in my big ice fishing tent (leaving the gap in the middle to drill 4 holes in a line in the middle of the tent.
I drill my holes in a line, shovel the slush and snow away, roll a mat to either side of the line of holes and set up my tent over it.
Slip free, doesn't freeze and stick, easy to clean, no edges to trip over as it lays flat without corners coming up, takes up a tiny amount of space when rolled up, is fast to deploy/roll out and quick roll up and is comfortable on feet.
Similar to this product. I bought it at Princess Auto.
Have not used the foam puzzle blocks since.
https://kingrubber123.en.made-in-chi...ber-Sheet.html