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Detail #TG-WSD-W14

Outside Corner Trim - Vertical Installation

We offer two different types of inside corner trim, but this is the easiest one to install. The trade-off is that it has exposed rivets. This installation detail is different when the panels are installed horizontally versus vertically. This installation detail is for a vertical wall panel only.

There are three part numbers that will work with this detail. Choose One.

WS-508, 4" X 4"
WS-525, 6" X 6"
WS-526, 8" X 8"


This parts list is designed to help you calculate the quantity of accessories that you’ll need for your trim installation. It has all of the accessories that are needed to install 1 full piece of trim, which is 120" long. To calculate the total number of accessories you will need for your job, simply take the number of trim pieces associated with the trim part purchased and multiply the list by that number for a total for your project.


  •  1 Piece Inside Corner Trim - WS-508, WS-525, or WS-526
    Choose One Size
  • 1 Piece Of Z-Metal Trim - WS-506
  • 1 Piece Of Z-Metal Trim - WS-516
  • 20 Pancake Head Screws (#10X1") NO Washer
    Verify Metal To Wood
  • 20 Rivets
  • 2 Tubes Of Butyl Sealant
How To Install Metal Corner Trim

Corner Trim Installation Videos

Corner trim is the typically the last pieces of flashing that's installed for a metal siding job. If the panels are installed horizontally, then it will require foam closure strips. If it's installed vertically foam closure is not required.

Vertical Corner Trim Installation

Vertical Inside & Outside Corner Trim

Inside And Outside Corner Trim Installation For Corrugated Metal Siding And Wall Panels. Step By Step Metal Siding Installation Instructions

Just in case you forgot