[Russic]

Originally Posted by flamingchina

Rather than using concrete nails, I use lag screws to hold things down. Just use an impact driver to put them in and out, super quick
https://www.amazon.ca/Lag-Screws-Hea...08BVZNWBC?th=1
They hold incredibly well, and go in super quick.

Ah, so that's what they're called! I went to Home Depot looking for concrete nails, failed miserably but found these. I figured I'd give it a shot, but also figured I'd drive one through a root and never get it out. Turns out they go in and out super easy, and they hold a ton of weight. We're buying about 10 more for next year.