Freestanding or gutter connected
Available as a 21-foot wide single freestanding bay or in any number of gutter connected bays for widths of 42', 63', 84', or more.

Poly-Vent® sidewall venting
Thermostatically controlled Poly-Vent natural venting system is a modern alternative to more expensive rack & pinion vents.

Variety of doors
You can order your Expansion Mansion with a multitude of different doors for work flow and ventilation.

Double inflated poly or polycarbonate sheeting
Choose from a white or clear double polyethylene or several
different types of long-lasting polycarbonate structured sheeting.

Wide range of options
You can purchase just the Expansion Mansion frame or a complete package that includes poly covering, Poly-Vent sides, rain gutters, doors and more. You can even purchase a complete turnkey operation with our full line of options.

Wiggle Wire poly attachment system
Used on thousands of greenhouses, Wiggle Wire has proven to be a low-cost, effective way to attach polyethylene or shade material to greenhouses. The aluminum base is easy to install and bends readily over any hoop configuration. Multiple layers of plastic and shade cloth can be installed and moved without disturbing the plastic.

Inflation kit
Our pre-assembled roof inflation kit creates an insulating dead air space between a double layer poly roof for greater energy efficiency and visual appeal. Gives you that nice tight, even poly look. Includes blower, heavy-duty mounting bracket, flex tube and air-transfer gaskets.

Poly Patch tape
Poly Patch is the leading film repair tape in America. A complete first-aid kit for greenhouses, this easy-to-use patching tape bonds aggressively to polyethylene film.