There are three common greenhouse structures: glasshouses, poly houses, and net houses. All three are suitable for peppers production.
The questions you should ask are:
- What are the local environmental conditions?
- How much do I want to/can I invest?
Glasshouse structures are suitable for commercial production of peppers in mild to cold climates and require high investment. Poly houses are suitable for diverse climatic conditions, and net houses are more suitable for hotter and dry climates (non-rainy climates).