# Car lift clearance and the slab

Lesson 2 of [Review a collector garage specification](https://luxurygaragebuilders.fyi/academy/review-a-collector-garage-specification.md), 20 minutes.

A lift that does not fit is an expensive mistake. For a four-post parking lift, check three things: the floor, the ceiling over the top car and the gap over the lower car. Use the figures from the maker's spec sheet for your exact model. The ceiling over the top car Ceiling needed = maximum rise + r…

The rest of this lesson is for learners enrolled in the course. [See how Review a collector garage specification works](https://luxurygaragebuilders.fyi/academy/review-a-collector-garage-specification.md).

Also on the [web page](https://luxurygaragebuilders.fyi/academy/review-a-collector-garage-specification/lift-clearance-and-slab).