FASTENING CORRUGATED 



227 



Stock lengths of corrugated steel sheets can be obtained from 5 

 to 10 feet, varying by one-half foot. Sheets of any length between 4 

 and 10 feet can usually be obtained directly from the mill without extra 

 charge. Sheets from 48 to 5 inches long, cost from i-io to l /2 cents per 

 pound extra. Sheets from 10 to 12 feet long are very hard to obtain 

 and cost extra. Sheets cannot be obtained longer than 12 feet. Stock 

 lengths of sheets should be used whenever possible as odd lengths often 

 delay the rilling of the order. Bevel sheets should preferably be ordered 

 in multiple lengths and should be cut in the field. Sheets to fit around 

 windows and doors should be cut in the field; no part of a sheet less 

 than ^ the width of a full sheet should ever be used. 



SECTION A-A 



FIG. no. 



For cutting and splitting corrugated sheets in the field the rotary 

 shear shown in Fig. no is invaluable. It will make square or bevel 

 cuts, or will split sheets without denting the corrugations. The shear 

 shown in Fig. no is one made by the Gillette-Herzog Mfg. Co., Min- 

 neapolis, Minn., and was used by the author in the erection of a steel 

 stamp mill in Northern Michigan, while in the employ of the above 

 named company. The shear is not on the market, but can be made in 

 any ordinary machine shop at a comparatively small cost. 



Fastening Corrugated Steel. Where spiking strips are used, the 

 corrugated steel is fastened with 8d barbed roofing nails 24 to 2^ 

 inches long, spaced 6 to 8 inches apart. The 2^ -inch barbed nails 

 should be used for nailing to spiking strips and to sheathing whenever 

 possible. For weight of barbed roofing nails see Table XVI. 



