ORDINARY LUMBER WASTE 



In estimating quantities of ordinary ceiling, 

 flooring and siding of different widths, increase actual 

 measurement of surface to be covered by adding the percentage 

 listed below. This is to allow for waste in milling, lap- 

 ping and matching. 



Ceiling and Flooring. 



3 Inches wide 50$ 



4 " 11 ______ 33^3 



6 " - 20$ 



Siding 



4 Inches wide ------ 33$ 



6 " "- 20$ 



8 " "______ 



Shiplap 



8 Inches wide ------ 16$ 



10 " " - 12$ 



Weights of Lumber 

 Per Board Foot (Approximate) 



Common rough, air dried - 



1 Inch and thicker 



Douglns fir - - - - - 3 t to 4 # 



Yellow pine ----- 2.75 to 3.25# 



Redwood ------ 2.50 to 3.00$ 



1 Inch and thicker S132E 



Douglas fir - - - - - 2-|- 

 Pine 2.1 



Ceiling 1/2 1 



Ceiling and Floor 



1" scr.nt. -----2to3# 

 Siding, average - - - 2% # 



B.M. (16) 



