For growers who need room to expand, the AFGH-0021 A-frame greenhouse delivers a full 12' x 20' footprint — enough space for extensive benching, raised beds, and dedicated work areas — all built on a durable upgraded Lux Guard floor and accessed through a wide 6' double-door entry.

Why Choose This Greenhouse

At 12' x 20', the AFGH-0021 offers our largest footprint in the 12'-wide lineup, with 64 linear feet of wall space and 23 windows plus two door windows for outstanding natural light. An upgraded Lux Guard floor and wrap-around shelving come standard, giving serious growers a durable, ready-to-use space suited for a large-scale backyard operation.

Construction & Materials

The AFGH-0021 is built on 4x4 pressure-treated runners with 2x4 pressure-treated floor joists at 16" on center, finished with an upgraded Lux Guard floor for enhanced moisture resistance and durability. Walls use 2x4 studs at 16" on center with 1/2" foil-backed LP SmartSide siding and SmartFinish, while 2x4 rafters at 16" on center support a 7/12-pitch roof of ribbed polycarbonate for excellent light transmission and weather protection. The wide 6' double doors include a diamond plate threshold and a window in each leaf, and the interior comes fully painted for a bright, finished look.

Included Standard

This model comes with wrap-around wall-mounted shelving (24" wide, full perimeter minus the door-end gable wall) and an upgraded Lux Guard floor — both included at base price.

Ideal Uses

Large-scale hobby growing operations, extended vegetable and flower gardening, extensive benching layouts, and backyard growers who need maximum space with durable, low-maintenance flooring.

Looking for a spacious wood frame greenhouse kit built for a large growing operation? Contact the Drift Creek Company to order — pricing may vary depending on delivery location.