36 LANDSCAPE GARDEN SERIES 



It is, of course, as impossible to give a fixed rule for the height 

 and the spacing of the posts for pergolas generally, as it is to establish 

 a fixed rule for any architectural design ; but I may say that the best 

 columns to use ordinarily are the ones 1 inches in diameter, which 

 will come 7 feet, 6 inches in height. These may be set 8 feet apart 

 in a pergola that is 7 feet, 6 inches wide. All measurements, be it 

 understood, are made on column centres. Where columns are used in 

 pairs instead of singly, the open distance between the pairs should be 8 

 feet, measured on centres. 



A sketch to scale, of the elevation of a proposed pergola, should 

 always be made, however, roughly, in order to judge its proportions 

 and its general effect when erected. 



