Click here to download the Polar and Polar Cub structure table.

Economical protection. Stuppy knows that growers need a cold frame to protect over-wintered crops that does not cost as much as a multi-purpose greenhouse. The Polar and Polar Cub are specifically intended for this purpose of protecting your plants through the winter at an economical cost. The difference between the Polar and the Polar Cub is the diameter of the pipe. The Polar utilizes a 1.66 OD steel material and the Polar Cub utilizes a 1.315 steel material. These structures are not designed for equipment suspension from the frame. These structures have been designed with construction ease in mind with bows that “slip” over their in-ground columns and a bracket ridge connector to simplify purlin placement. With the incorporation of a sidewall height you achieve maximum use of space. Covering costs are minimized when used in conjunction with our Polylock® With a Twist extrusions and polyethylene film. While this structure is designed for over-wintering, it can also be used as a shade structure or summer storage during the “off-seasons”. Shade cloth must be removed during the winter months. Stuppy’s cold frames are your low-cost solution for over wintering crops such as perennials and nursery stock.

All Polar and Polar Cub models have:

• 4 foot or 6 foot bow and column spacing
• 30 inch in-ground column
• 3 ft 3 in sidewall height
• Polar and Polar cubs are available in 96’ lengths only.
• Metal ends are not available for these structures.