Careful planning before beginning construction of a backyard greenhouse is a must. You must choose the best location based on available space and sunlight. You must also determine what size you will build.
There are many different materials to choose from. The floor plan must be laid out. Then you must decide whether or not you will include heating and ventilation or a watering system.
The most important decision that you will make in planning and building your greenhouse is the covering. The type of material that you select will directly affect the sunlight that hits your greenhouse.