Floor Jack Lift Height

[fuel74]

Sorry for Nube question. I'm looking for a good quality floor jack for my Camaro - but if shelling out dough want to be able to use it on my Tahoe as well. Most Floor Jacks I'm seeing lift between 18"-20". Is that enough to get the wheels off the ground? My Tahoe is stock LTZ - 32" tires. I've only seen a couple that lift higher than 20".

Any recommendations?? Thanks in advance!