Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: What is the height between shelves
Document: We bought 5 units for our garage. My husband decided to combine them together into 4 so there was one more shelf higher. If only these shelves were 1" higher, then the large plastic totes would fit easily on the shelves and make organizing a breeze. The height of the space between the shelves is missing from the product dimensions. Still, you can't beat the price, ease of assembly and sturdiness. So much easier than metal shelving that wobbles and rusts.
Well, it looks great on Amazon but what a disappointment when it arrived. It's very small.so small you will have to remove storage boxes and put your stuff in shoe size boxes. The height of this shelf is also about three feet smaller then all of my other ones. Buyer Beware! I think the manufacturer over stated the pounds that could be stored on each shelve as the shelves are not super strong. The only positive that I found is that they are extremely easy to install,less than ten minutes
Great shelf -- great height for someone like me who's not that tall (i.e., I can reach the top), easy to put together if, like me, you had someone else do it. Honestly, someone else did assemble it for me, but it seemed fairly easy. Great for a basement or garage. If I need another shelving unit, this will be it.
I have several storage shelves,. I have them in my basement and garage Very easy to put together .Will tell a friend.
easy to assemble, took less than 10 minutessturdy construction, use product in my garage and the shelves hold heavy items with no problem
Storage unit was easy to assemble and does exactly what it was designed to do. Individual shelf legs make it slightly unsteady compared to a shelf unit with four legs for all shelves, in my opinion.
It may be sturdy but the holes in the shelving made the shelves unstable and round smaller items kept toppling over such as bottles of laundry detergent and softener , spray polish etc. I regret buying it.
I bought these for the basement in an area where I could not install wall shelves. I have three of them side by side. I was really busy and didn't have time to screw together metal shelves and these were really quick to assemble and quite sturdy.
One of the shelves came cracked on two ends even though the packaging was in perfect condition which means that the shelving unit was put in the box in that condition. So.........poor quality control. Next after assembling the shelving units no matter what you do, they shelves never stay level. Even with nothing on them. Not just one unit but with all five units that we purchased.
The shelves are as described except the dimensions are woefully off. Each individual shelf is 36" wide X 18" deep. The total unit assembled is indeed approximately 57" high. The extra size kills my ability to set them in the space I had planned out. Otherwise they seem sturdy, and at least the package I opened didn't seem to have damage on any of the parts.
Answer: Fifteen and 5/8 inches from top of shelf to underneath of shelf above (between).