CHAPTER V 

 BUILDING THE RANGE 



ONLY the most important principles of greenhouse con- 

 struction will here be considered, as it is impossible to 

 condense in a limited space a detailed discussion of so 

 broad a subject. 



Commercial ranges are considerably different from 

 those constructed for private or park conservatories. In 

 the former, economy and durability are two very im- 

 portant factors. The ornamental character of the struc- 

 ture is of less importance. 



TYPES OF CONSTRUCTION 



Methods of building vary with almost every construc- 

 tion firm and with the ideas of individual growers. There 

 are, however, a few general principles which are quite 

 definite and distinct. The grower should decide which 

 method will best suit his conditions, considering of course 

 durability and comparative cost. The two methods of 

 construction are all-wood houses and semi-iron houses. 

 The latter may be subdivided into the flat-rafter type, 

 pipe-frame type and the U-bar type. 



57. All-wood houses. The first type, the all-wood 

 house, continues to be used to a considerable extent by 

 commercial growers. With durable material for founda- 

 tions and careful attention to construction, avoiding 

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