Plaster Corner Mold

Trim Purpose

Specs, MSDS, and LEED Information for Flannery Trims & Products

Flannery’s Plaster Corner Mold is an outside corner trim that creates a sharp 90º aluminum corner. Plaster Corner Molds are straighter and cleaner corner trims compared to a standard welded wire corner. Plaster Corner Molds can also be used with veneer plaster, drywall and wood panel systems.

Product Details

Flannery’s Plaster Corner Trims are standard extruded aluminum alloy 6063 T5 and have a .050” nominal wall thickness. Plaster Corner Trims come in 10′ lengths and shall have a standard Clear Anodized Finish. Mill Finish (for field priming & painting), Chem-film finish or other factory finishes and custom paint orders are available. You can view our factory finishes to see if we have what you are looking for or if you do not see the finish, you are looking for, chances are we can color-match it or we already have it! Flannery Trim wants to always make sure we can get you the right look and feel for your building project.

Plaster Corner Mold Dimensional Drawing

Part No. “A” Width “B” Width Stucco Thickness Alignment Splices Stock Item Downloads
PCM 50 1/2″ 1 1/4″ 5/8″ N/A Yes
DWG - Plaster Corner Mold
PDF - Plaster Corner Mold


PCM 75 3/4″ 1 1/4″ 7/8″ Yes Yes
DWG - Plaster Corner Mold
PDF - Plaster Corner Mold


Install all Plaster Corner Trims using full ten-foot lengths wherever possible. Attach Plaster Corner Trims over the weather resistant barrier to the framing with nails, screws, or other approved fastening methods. All Plaster Trims must be cut accurately and installed with tight, neat joints. All nailing flanges must be covered with lath and all butt joints must be sealed. Manufacturer recommends that a carbide tip blade along with lubricant be used when cutting any aluminum trims.

Various sizes of Flannery’s Plaster Corner Molds are available with Aluminum Alignment Splices to ease the installation process and create crisp and clean butt joints and lines. Alignment Splices can be utilized at any butt joint no matter where the trim is cut for installation purposes.



Flannery can radius Plaster Corner Molds when the trim runs along a “curved” or “radiused” plane. Radiused material is bent to a project’s dimensional requirements and is considered a custom product. Download the Radius Form or view all of our radius forms.

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