Smooth Finish Channel

Trim Purpose

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

Flannery’s Smooth Finish Channels create an aesthetic reveal in any stucco wall system. Smooth Finish Channels break up plaster or stucco walls by creating horizontal and vertical reveal lines. Flannery’s Smooth Finish Channels are unique because they do not have the traditional plaster key at the reveal edge. With the plaster key removed, the plasterer can bring his finish coat right up to the reveal edge creating a clean sharp edge.

Product Details

Flannery’s Smooth Finish Channel Trims are standard extruded aluminum alloy 6063 T5 and have 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 here to view all of our Factory Finishes.


20 Smooth Finish Channel Shape Dimen 1000 BjB e1681919424539 300x146 - Smooth Finish Channel

Part No. “A” Depth “B” Width Vinyl Connector Stock Item Venting Available
SFC 468-375 15/32″ 3/8″ No Yes N/A
SFC 50-25 1/2″ 1/4″ Yes Yes N/A
SFC 50-50 1/2″ 1/2″ Yes Yes Yes
SFC 50-75 1/2″ 3/4″ Yes Yes Yes
SFC 75-25* 3/4″ 1/4″ Yes No N/A
SFC 75-50 3/4″ 1/2″ Yes Yes Yes
SFC 75-75 3/4″ 3/4″ Yes Yes Yes
SFC 75-100* 3/4″ 1″ Yes No Yes
SFC 75-200* 3/4″ 2″ Yes No Yes

*Custom Sizes Are Available

Install all Smooth Finish Trims using full ten-foot lengths wherever possible. Attach Smooth Finish 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.


20 Smooth Finish Channel Install Detail 1000  BjB - Smooth Finish Channel

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.


20 Smooth Finish Channel 3D CornerInterset 1650 R1 BjB - Smooth Finish Channel

Flannery can radius Smooth Finish Channels 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.


20 Smooth Finish Channel 3D Radius 1700 R1  BjB - Smooth Finish Channel