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Guideline 1: Joint Finishes

These voluntary guidelines were developed by the NOMMA Technical Committee, with strong input from the membership.

All samples shown are primed steel.

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Square Tube
Square Solid
Pipe Raked


Example A: 1" to 1" square tube "T"


Finish #1 - No evidence of a welded joint.


Finish #2 - Completely sanded joint, some undercutting and pinholes okay.

Finish #3 - Partially dressed weld with spatter removed.
Finish #4 - Good quality, uniform undressed weld with minimal spatter.

These guidelines are voluntary recommendations for information purposes only. It is the responsibility of the individual to ensure proper construction design. The use of fillers is not included in the scope of this work. These guidelines do not endorse or discourage fillers. They deal with finished appearence only.

© 1994 by the National Ornamental & Miscellaneous Metals Association. All rights reserved.

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