Before Starting Assembly:
After choosing a location, proper preparation of the site is essential. The site must be level. The greenhouse
must be mounted to a base. Construct the base first so the greenhouse can be securely mounted.
We recommend constructing a wood platform base using a perimeter of two by fours filled with either soil,
sod or gravel. Instructions for constructing a wood platform can be found on page 3 in this manual.
When selecting a site for your greenhouse, a flat level surface is essential and if possible, with proper water
drainage and easy access to power and water necessary for greenhouse gardening. Choose a sunny, level
position away from overhanging trees and power lines and protected from the wind as much as possible.
The location should be away from structures that could cause snow to drift on or around the greenhouse.
Locate underground pipes or cables before preparing the site or anchoring the greenhouse.
2. Lay the parts out in one staging area:
3. Select a Location:
4. Prepare a Foundation:
1. Make sure you have all the necessary parts:
Compare the contents of the seven cartons with the List of Parts. If any parts are missing or damaged or if you
have any questions, please contact Customer Service by phone at (877) 373-3078
or by email at
before beginning assembly.
Our greenhouse has been designed to be easily assembled. Although all but one step can be completed by one
person, we recommend using a helper for the entire assembly. You will need assistance from another person to
assemble the roof. Allow six to eight hours to complete. If you have never assembled a greenhouse before, make
it a weekend project. We recommend you take your time and read these instructions carefully to avoid mistakes.
NOTE: These instructions include helpful hints and important information needed to safely assemble and properly
maintain the greenhouse. Please read these instructions completely before you begin.
Thank you for purchasing your Monticello
TM
8x20 Greenhouse. The Monticello line is proudly made in the USA
by a leading commercial greenhouse maker using the same professional grade materials and design. The frame
is constructed with the highest quality extruded aluminum with lead free powder-coated paint. The panels are
professional grade 8mm twin wall polycarbonate selected for their insulation and durability.
The List of Parts has the corresponding step number referenced to each part so you can easily prepare for
each step. We recommend placing all parts in one staging area. Lay out parts by size and shape. Use the List
of Parts to identify the part numbers for profiles and panels. We have not labled the parts with stickers to
avoid removing them during assembly.
The Monticello line is a modular system, which uses an 8x8 greenhouse that can be easily expanded in four foot
sections up to 24 feet by 8 feet at any time. This model consists of an 8x8 greenhouse with three four foot
extension kits. It includes four roof vents, each with it’s own vent opener to ensure proper ventilation and maintain
optimal temperature. When properly assembled and maintained, this greenhouse will provide years of enjoyment.
It can be expanded as your needs expand.
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Contact your local authorities regarding any required building permits or restrictions.
Make sure the corners are square by measuring the inside diagonals from both sides and making sure they
are equal. Use a spirit level to make sure the base is level.
Other suitable base options include wood decks and concrete slabs. Wood screws are included to secure the
greenhouse to a wood base. The greenhouse is secured to the ground from the inside with ground anchors.
See step11 for details. If you are using a concrete base, get appropriate mounting screws before beginning.
Introduction
CAREFULLY READ ALL INSTRUCTIONS BEFORE YOU BEGIN.
FOLLOW STEPS IN THE ORDER PRESENTED. KEEP THIS MANUAL FOR FUTURE REFERENCE.
