1000 Series Cold Frame - 20' Wide

Item No. CF-20
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Shipping Ships via Motor Freight Carrier Dimensions 20' W x Varies (see dropdown above) L x 10' H | View Diagram Sidewall Not included Frame Galvanized Steel - 18 Gauge Covering Not included Arches (2) piece arch, 5" rollform galvanized steel. 6' or 4' center to center Columns Not required Purlins
1 / Each
price per 1 / Each
excl. tax
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Extended Turnaround

This item takes a little longer to ship out. Departs in approximately: 2 weeks

ShippingShips via Motor Freight Carrier
Dimensions20' W x Varies (see dropdown above) L x 10' H | View Diagram
SidewallNot included
FrameGalvanized Steel - 18 Gauge
CoveringNot included
Arches(2) piece arch, 5" rollform galvanized steel. 6' or 4' center to center
ColumnsNot required
Purlins(1) run 5" rollform galvanized steel under peak. (4) runs 3" rollform under arch.
WarrantyFrame - Lifetime

This ground-to-ground, quonset styled greenhouse can provide year-round production for propagation and growing, retail garden centers, and aqua culture. These structures are recognized as the strongest, most reliable Cold Frames greenhouses available - constructed from the same high quality, galvanized steel roll-formed components as our more expensive packages. Ideal as a starter house or an overflow structure. Cold Frame greenhouses are non-rated structures and not recommended for high wind or snow areas.

Designed for single poly or double poly roof covering and includes pre-cut and punched components for easy bolt-together assembly. Also can be fitted with shade cloth.


The success of this Cold Frame greenhouse can be found in it's unique roll-form components offering superior strength, reduced cost, and simplified installation. The galvanized steel frame insures maximum strength and life.

Dimensional Information

20' wide cold frame dimensions

Assembly Options

Step-by-step installation instructions are included. We provide online and telephone support to answer any questions you may have. For information on how best to plan your greenhouse assembly or any other questions you may have, call a Sales Representative toll-free at 1-888-281-9337.


The standard and recommended foundation for cold frame greenhouses is a piered concrete footings.

The hoop sections of the structure bolt to the interior of the sidewall posts and they extend roughly 18" into augered holes which are then filled with concrete. These materials are the responsibility of the purchaser to secure and do not come with the structure.

Financing Available! $$$

Greenhouse Megastore works with HFS Financial and QuickSpark to provide financing to homeowners and businesses.
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Shipping Motor Freight Carrier

This product ships via Motor Freight Carrier.

Motor Freight Agreement

  • Full Size Semi: Your location must be able to accommodate a full size semi-truck trailer of up to 70ft. in length.
  • Someone Must Be Present: You or someone else authorized must be present to unload the shipment. Exact delivery date will be arranged via phone by freight company.
LTL Freight Type FREIGHT
Available for Drop Shipment Yes
Replenishment System Purchase
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