The 3/8 rib lath metal plaster base is type?

The 3/8 rib lath metal plaster base is type?

• A. F3/8R
• B. F1/2R
• C. F3/4R
• D. FRB

Answer: (A)

The main idea is how metal plaster lath bases are labeled by rib height and rib pattern. A 3/8 inch rib lath is designated as F3/8R, which directly communicates both the type (F) and the exact rib height (3/8 inch) with the ribbed style (R). This designation is the best match for a plaster base described as 3/8 rib lath, signaling the intended keying surface and compatibility with plaster thickness. The other labels point to different rib heights or a different base form, which wouldn’t correspond to the 3/8 inch rib requirement.

The main idea is how metal plaster lath bases are labeled by rib height and rib pattern. A 3/8 inch rib lath is designated as F3/8R, which directly communicates both the type (F) and the exact rib height (3/8 inch) with the ribbed style (R). This designation is the best match for a plaster base described as 3/8 rib lath, signaling the intended keying surface and compatibility with plaster thickness. The other labels point to different rib heights or a different base form, which wouldn’t correspond to the 3/8 inch rib requirement.