In metal plaster base terminology, what does FRB stand for?

In metal plaster base terminology, what does FRB stand for?

• A. Flat Rib Lath with Backing
• B. Flat Rib Board
• C. Frame Rib Base
• D. Front Rib Backing

Answer: (A)

FRB stands for Flat Rib Lath with Backing. The term describes a metal plaster base where the lath has flat ribs to create a good mechanical key for the plaster, and there is backing material behind the lath to add rigidity and support. This combination helps prevent sagging and provides a solid, stable surface for plaster application. The other options don’t fit standard metal lath terminology: Flat Rib Board would imply a solid board rather than a ribbed lath, and Frame Rib Base or Front Rib Backing aren’t recognized terms in this context.

FRB stands for Flat Rib Lath with Backing. The term describes a metal plaster base where the lath has flat ribs to create a good mechanical key for the plaster, and there is backing material behind the lath to add rigidity and support. This combination helps prevent sagging and provides a solid, stable surface for plaster application.

The other options don’t fit standard metal lath terminology: Flat Rib Board would imply a solid board rather than a ribbed lath, and Frame Rib Base or Front Rib Backing aren’t recognized terms in this context.