How to build a lean-to glasshouse
Step 10. Level the site area
Level the site area. Ensure the glasshouse frames are sitting on level ground.
Use a level or a water level to check the grade, and dig accordingly to level the ground directly beneath where the frames will be sitting.
Go to www.buildeazy.com/waterlevel.php for an article on 'how to make and use an inexpensive water level'.
Note: Any trenches or low lying areas must be well drained.
The glasshouse should not be placed in a potential boggy area without drainage