The wall and the ground must be flat* for the install.
Part E should be fixed parallel to the ground.
To be sure, it is necessary to use a level.
(*it is strongly recommended to install the pergola on a concrete slab)
Part E should be fixed to the wall 2.5 cm higher than the
opposite side in order to facilitate the flow of water from
the top to down when it rains.
Make 5 holes in the wall using
the hole puncher in the pre-
drilled holes.
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