Plaster Control Joint

Trim Purpose

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

Flannery’s Plaster Control Joint (PCS 75-25-25) creates a ¼” aesthetic reveal in a typical stucco wall system. It breaks up a plaster wall by creating horizontal and vertical reveal lines. Flannery’s Plaster Control Joint is available with Aluminum Alignment Splices to ease the installation process and create crisp and clean butt joints and lines.

Product Details

Flannery’s Plaster Control Joint (PCS 75-25-25) is a standard extruded aluminum alloy 6063 T5 and has a .050” nominal wall thickness. Aluminum Plaster 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. Click on Info Tab above for Factory Finishes.


Install all Plaster Control Joints using full ten-foot lengths wherever possible. Attach Control Joint to the framing with nails, screws, or other approved fastening methods. All Control Joints 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.


Channel Alignment Splices

Flannery’s Plaster Control Joint comes with Aluminum Alignment Splices to ease the installation process and create crisp and clean butt joints and lines. To assist the installer, Flannery also provides vinyl connector clips with most Channel Screed sizes.


Flannery offers prefabricated intersections and corners for intricate building designs that utilize intersecting lines and bands on exterior walls. Prefabricated intersections and corners are mitered and then welded together at their attachment flanges, then vinyl tape is applied to the back of the reveal to prevent water intrusion. Factory welded intersections and corners come with 6” legs, however custom leg lengths can be ordered.




Flannery can radius Control Joints 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 Order form below to place an order or receive a quote.



PCS 75-25-25 Radius Form