For sure the intention would be to lag it into the concrete. I don't think there's much point considering a 4 post as you can't work on the suspension. They're more storage tools. Hmm looking more closely at the one I posted maybe it doesn't have bolts. I'm not sure how that would even work. I thought it had a flange that you bolt to the ground and the 'portable' nature of it was that you could move the columns when you're not using it but leave the bolts. Perhaps that's not the case and I should keep looking.
Z32 TT
1996 Integra - winter beater with studs - RIP (deer)
2002 WRX - to be sold
2010 sti - winter