Siding X-Mold

Trim Purpose

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

Flannery’s Siding X-Mold is a trim that creates a reveal at a 90° outside corner joint where siding is installed. The Siding X-Mold creates a solid and clean corner reveal for the siding system which would normally require the siding to be mitered and laid together at the edge. With a 1″ face flange, the Siding X-Mold allows the installer to slide the siding in behind the flange and cover the unfinished edges of the siding. The larger face leg of the Siding X-Mold also allows for the possible expansion or contraction of the siding along a horizontal run.

Manufacturer's Specifications

Flannery’s Siding Trims are standard extruded aluminum alloy 6063 T5 and have a .050” nominal wall thickness. Aluminum panel 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. Flannery has a limited stock of factory paint colors to match Trugrain made with Resysta stains, please call for availability. Click on Info Tab above for Factory Finishes.

Part No. “A” Width “B” Width Compatible Siding Stock Item
SXM 625-100 5/8″ 1″ TGR 1/2″ Siding Flatboard Yes
SXM 875-100 7/8″ 1″ TGR 3/4″ Hollow Board Yes
SXM 1125-1250 1-1/8″ 1-1/4″ TGR 12″ Commercial Siding Yes
Siding X Mold A B Dimen Shape R3 1000 BjB - Siding X-Mold

Installation of Siding Trims must be in accordance with the Siding Manufacturer’s Instructions. For TruGrain made with Resysta Siding’s installation instructions, please visit their website,

4 Siding X Mold Install Detail R5 1000 BjB - Siding X-Mold
Siding X Mold ISO Detail R3 BjB - Siding X-Mold