CONSTRUCTING AN ASSEMBLY PROBLEM 



59 



This group of projects does not require the use of tools not 

 already described. It represents, however, a type of project 

 slightly different from any of those included in former groups. 

 The projects in this group are larger and generally include 

 more distinct parts requiring the use of 

 more and larger stock. In a sense, they 

 represent a type of work which is nei- 

 ther carpentry on the one hand nor 

 bench woodwork on the other; they 

 combine the elements of both. 



-h 



FIG. 75. Flower box. 



37. Calculations of Stock. In Sec. 5, rules are given 

 for finding the number of board feet in one or more boards. 

 It is essential that we know how to apply this rule, both to 

 estimate the cost of a project and actually to determine the 

 amount of material that has gone into it. It is equally im- 

 portant to form a judgment of what stock to select before a 



