CONSTRUCTION OF HOTBEDS 107 



157. Sash. The most durable wood should be used in 

 making- hotbed and cold frame sash. Cedar or cypress is 

 usually employed. Many of the old sash now in use were 

 made of white pine. However, it is a mistake to have 

 sash made of the softer woods at local factories which 

 do not make a specialty of this line of work. Sash differ 



FIG. IQ. SASH FOR HOTBED OR COLD FRAME 



greatly in width and length, but the standard and most 

 popular size is 3 x 6 feet. Longer sash require wide 

 frames which are inconvenient in the daily care of the 

 plants. Sash vary also in thickness ; 2-inch lumber when 

 dressed makes a very strong sash, but it is more common 

 to use i*/2-inch lumber, which planes down to i%. The 



