When choosing your Greenhouse staging things to consider is the durability. As it will be housing various plants so it needs to be strong and durable and be able to hold heavy pots, it also needs to be water resistant and be able to withstand daily wear and tear.
Greenhouse Staging comes in all sorts of sizes and in the form of slatted wood and free standing benches. You can also buy folding staging and heavy duty staging. So before you go out make sure you take all the above points into consideration.