[cdnus]

I made 4 blocks from 2x12 & positioned them under the tires, I can fit my large truck jack under & can raise the car to max height in 1 go.
The rear is single thickness with taper front & rear so the front wheels can drive over, the front are double thickness with a taper on the leading edge & a 2x2 stop on the top front.
I anchor them with lag bolts that can be easily removed if they are in the way while working under the car. I find it no problem to park on top of these all the time & when I need to raise the car it's very quick & easy.

Craig