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Manually Driven Nails for Wood Structural Panels
For common, spiral, or ring nails, you must select from standard nail lengths or diameters, and selecting one updates the other to the standard wire used for the nail size.
The table below shows the correspondence between diameter and length for each manually driven fastener type now available in Shearwalls:
Length (in) |
Length (mm) |
Common wire nails |
Spiral nails |
Ring nails |
|||
|
|
in |
mm |
in |
mm |
Nom in |
Nom mm |
1-3/4 |
44 |
- |
|
- |
|
0.109 |
2.769 |
2 |
51 |
0.113 |
2.87 |
0.120 |
3.048 |
0.120 |
3.048 |
2 |
51 |
- |
- |
- |
- |
0.134 |
3.404 |
2-1/4 |
57 |
0.113 |
2.87 |
- |
- |
- |
- |
2-1/2 |
64 |
0.131 |
3.33 |
0.120 |
3.061 |
0.134 |
3.404 |
3 |
76 |
0,148 |
3.76 |
0.135 |
3.429 |
0.148 |
3.76 |
3-1/4 |
83 |
0,148 |
3.76 |
0.135 |
3.429 |
- |
|
Ring Nail Design Diameter
For ring nails, the value shown for diameter is the size of the wire the nails are made from. The nominal values are shown in the user interface, but for design, the program subtracts 2 mm = .0075" to arrive at the root diameter to be used for the design equations.
2" Ring Nail Diameters
There are now two diameters for 2" ring nails. When 2" is selected the program selects by default the first of the diameters, 3.048mm, which you can then change.
3.048 mm is be used as the diameter for design for unknown nail length when the cycle reaches 2".
Power Driven Nails
Standard Sizes
Length |
Diameter |
||
in |
mm |
in |
mm |
1-7/8 |
44 |
0.131 |
3.33 |
2 |
51 |
0.113 |
2.87 |
2 |
51 |
0.131 |
3.33 |
2 |
51 |
0.120 |
3.048 |
2-1/8 |
54 |
0.48 |
3.76 |
2-1/4 |
57 |
0.92 |
2.33 |
2-1/4 |
57 |
0.99 |
2.50 |
2-1/4 |
57 |
0.105 |
2.68 |
2-1/4 |
57 |
0.113 |
2.87 |
2-3/8 |
60 |
0.113 |
2.87 |
2-1/2 |
64 |
0.120 |
3.048 |
2-1/2 |
64 |
0.131 |
3.33 |
2-5/8 |
67 |
0.148 |
3.76 |
2-3/4 |
70 |
0.148 |
3.76 |
3 |
76 |
0.120 |
3.048 |
3 |
76 |
0.131 |
3.33 |
3 |
76 |
0,148 |
3.76 |
3-1/4 |
83 |
0.148 |
3.76 |
Custom Sizes
It is possible to type in your own nail length and diameter if power-driven nails are specified.
The diameter must be at least 2 mm, and they must be at least 1.75" in length, as per NBC Table 9.23.3.5.A (however if it is not at least 2", a warning indicates that ring nails must be used.)
To comply with O86 11.6.1.1, the maximum nail diameter allowed by Shearwalls is 3.76 mm.
Unknown Nail Sizes
Only unknown nail lengths are allowed, not unknown diameters. If unknown is entered as the nail length, then all possible nail diameters are listed. If you select one of these nail diameters the program will continue to show unknown for nail length, and when the design loop runs, it will only design for nails that have that diameter
If the diameter is unknown and you type in a nail length, the program selects the diameter corresponding to the closest nail in the list to the nail length that was typed in.
When the length and diameter are left as "Unknown", if when cycling through lengths the program arrives at one that has more than one diameter, it chooses the one corresponding to the common wire nail of that length.
Gypsum Wallboard Nails and Screws
There is a list of nail sizes from 1-1/4" to 2", and screw sizes from 1-1/4" to 2.5". These selections have no impact on design and exist only to provide a thorough material specification in the output reports.