FREE Technical information to assist you in your choice of greenhouse, 

Eaves Height

The eaves height of 5'7" on the Alton Evolution models is excellent and is as much as 18" higher than the lowest greenhouses on the market.
The extra height gives you several advantages. There is more air in the greenhouse creating a better growing environment, you have more head room and a higher door, and you have plenty of room for a high level shelf in the greenhouse.