Grow Freedom Greenhouse Base Preparation Instructions

Freedom Greenhouse Base Preparation Instructions
The Freedom Greenhouse is built in a
woodworking workshop in Maine using the highest
quality Eastern Maine Cedar and other
components. Experienced carpenters and
woodworkers assemble each greenhouse in
modular sections that are then crated and shipped.
The on-site assembly can not begin until an
adequate base is prepared for the greenhouse or
Greenshed.
Caution: – Before beginning, make sure there
are no overhead power lines that could come in
contact with you or the greenhouse nor any
underground power, water, or gas lines that you could contact when working on a base.

Groundwork

has a 1"x 4" plate (cedar board) on all four sides. A very simple base can be made of pressure
treated or composite 2x4's or 4x4's forming a perimeter framework the same size as the
greenhouse. It can be anchored to the ground with steel
rods driven thru them or some other means of anchoring.
For most greenhouses larger than 12'x12' some concrete
anchoring is usually recommended. The greenhouse plate
is attached to the base with structural lag screws. (included
with the greenhouse). A concrete slab or concrete footings
are other ways to anchor a greenhouse. If concrete is
going to be used it still is advisable to attach a 2x4 or 4x4
to match the outside greenhouse dimensions. If you prefer
to anchor the greenhouse directly to concrete set anchors into the wet concrete leaving them
at least 1 ½" above the concrete. The anchors should be set about 2" in from the outer edge of
the plate dimensions. Anchors should be placed 6"-9" away from the outside corners of the
greenhouse so they don't interfere with corner studs. For other anchor locations please call our
The ground that the Freedom Greenhouse sits on does not
have to be level, but the base for the greenhouse does
need to be both square and level. The other requirement of
the base is that it provides a method of anchoring the
greenhouse against moving. Strong winds or a bump from
a lawn mower can move a greenhouse if not firmly
anchored. Any form of base is acceptable provided it has
the three requirements of being square, level, and provides
a method of anchoring. The bottom of each greenhouse