ACF Greenhouses Kits, supplies and accessories for economical PVC-framed greenhouses.

Cascade Greenhouse Supply Aluminum frame greenhouse kits with twinwall glazing. Free catalog available.

Charley´s Greenhouse Supply Offers a large catalog of kits and supplies available in print or online. Also offers orchid supplies.

Circo Innovations Sells clamps and other supplies for building PVC structures. Free greenhouse plan is available online.

Farm Wholesale Greenhouses Features several sizes of polyethylene glazed greenhouses.

Garden Greenhouses, Inc. Wood-framed greenhouse kits shipped as panels for ease of installation.

International Greenhouse Company Offers commercial and hobbyist greenhouses and supplies.

Jaybird Manufacturing, Inc. Manufactures greenhouse foggers in a variety of sizes.

Santa Barbara Greenhouses Offers greenhouse kits made from redwood and polycarbonate panels.

Schaefer Ventilation Equipment Manufacturers of a variety of styles and sizes of ventilation equipment.

Sturdi-Built Greenhouses Features several styles of redwood greenhouses.

Sun Country Greenhouses Cedar greenhouse kits with Lexan® Corrugated covering. Greenhouse plans available if you´d rather build from scratch

Sundance Supply Factory-direct supplier of polycarbonate panels, misting systems, ventilation equipment and other greenhouse supplies

Turner Greenhouses Greenhouse kits with a choice of polyethylene or fiberglass covering.

GardenWeb Forum--Greenhouse and Garden Structures Great source of information from experienced greenhouse gardeners.

History of Greenhouses Nice article from Sun Country Greenhouses includes historical information, planning tips and choices of covering materials.

Hobby Greenhouse Association Non-profit organization promoting and supporting hobby greenhouse owners.

Hobby Greenhouse Construction Basics of planning and building a greenhouse from the Alabama Cooperative Extension System

How To Build Your Own Greenhouse Low-cost greenhouse alternative built from a portable carport frame and clear plastic film.