Expanded Metal Glossary


 Expanded metal glossary terms section of our catalog (PDF)

 Perforated/Expanded Metal Mini Catalog (PDF)

Bond Side Shearing:
This cut is made along the length of the expanded sheet on the center line of the bond over the specified length. In most cases it is not practical to attempt to Bond Side Shear either regular or flattened expanded metal, because of camber.

End Shearing:
The process of cutting a piece of expanded metal parallel to the short way of the diamond.

End Random Shearing:
The process of shearing a piece of expanded metal to a specified length (LWD). This cut normally leaves open diamonds at both ends but accomplishes close tolerance (plus or minus 1⁄8”) when both ends are sheared.

End Bond Shearing:
The process of shearing a piece of expanded metal to a specified length (LWD). A plus or minus 1⁄8” tolerance applies when both ends are sheared. One end is cut on the Bond parallel to the SWD, the other end usually has open diamonds. NOTE: When End Bond Shearing is requested for both ends, the sheet is sheared at the center line of the bond over the specified width. A tolerance minus 0 plus 1⁄2 diamond applies. It is possible to End Bond Shear, but extraordinary care must be exercised to maintain the squareness of the sheet.

Random Side Shearing:
Side shearing is a cut made parallel to the LWD dimension of the expanded sheet, which usually leaves open diamonds. Standard tolerance SWD is plus or minus 1⁄8” when both sides are sheared.

Side Shearing:
The process of cutting a piece of expanded metal parallel to the long dimension of the diamond.

Squareness:
When all four sides of a sheet of expanded metal are sheared, the maximum tolerance will be plus or minus 1⁄16” per foot of width.

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