How to build a greenhouse - from Buildeazy
This greenhouse, 2400mm (8ft) wide x 3000mm (10ft) long , is lightweight, portable (can be fixed more permanently if required), inexpensive and eazy to construct. The cover is clear UV resistant polythene film. This greenhouse is ideal for those areas which have just enough winter frosts to be annoying. Drawings and instructions. Is in a choice of either metric (mm) or imperial (ft and ins) dimensions.
How to build a PVC hoop house - from Westsidegardener
An unheated PVC hoophouse can be a useful addition to your garden. It keeps excessive rain off the plants, blocks the wind, raises daytime temperatures 5-10 degrees (and often much more), and keeps frosts and heavy dew off the leaves. PVC hoophouses are inexpensive to build, and can be put up in about an hour. Take a look, and decide for yourself! Photos and instructions. Is in standard dimensions (ft and ins).
32' x 10' x 10' Greenhouse - from Floridagardener
Interested in Building Your Own Greenhouse? Here is How -- Drawings and instructions. Is in standard dimensions (ft and ins).
PVC Pipe Greenhouse - from PVC Plans
All the info required. You can download in PDF format. Is in standard dimensions (ft and ins).
Victorian conservatory Greenhouse - from H2othouses Greenhouses
This is a big project, especially if you work full time and, depending on how it is scheduled, can drag on for years. "We stretched ours over two years and we still haven't completed the accessories or the air distribution system". Set realistic expectations, give yourself plenty of time, and watch it grow! Everything, prices, pictures, plans etc. Is in standard dimensions (ft and ins).
6ft x 9ft PVC Greenhouse - from Snapclamp
A simple PVC pipe gable construction. The cover is held in place with snapclamps. Parts list, instructions, plans and drawings. Is in standard dimensions (ft and ins).