Hello all 
I am edging closer to a time where I might be able to install a 4 poster. Like many of you here that have either done it already or would love to in the future this is a big deal for me and I’d like to get it right.
It will primarily be used for storing one car above another but will also be used periodically for working on one of them.
I would also love to be able to drive off it at either end when on the floor.
The cars I would like to store on top of each other are 143 cm high.
I am limited by roof space.
What is the minimum height I can get away with and can you get 4 posters that can be exited at either end?
Thanks all for the advice
I am edging closer to a time where I might be able to install a 4 poster. Like many of you here that have either done it already or would love to in the future this is a big deal for me and I’d like to get it right.
It will primarily be used for storing one car above another but will also be used periodically for working on one of them.
I would also love to be able to drive off it at either end when on the floor.
The cars I would like to store on top of each other are 143 cm high.
I am limited by roof space.
What is the minimum height I can get away with and can you get 4 posters that can be exited at either end?
Thanks all for the advice
