2 Panel Seam Cover
1/4" per frameEach frame needs its width reduced by 1/4". Apply the reduction after all other panel sizing calculations.
Full detail PDF
01Orientation matters
Different panel counts, different arrangements.
When installing two panels, three panels, or four or more panels (or walls), the “r” channel is used to cover the seams between adjoining units. Pay particular attention to the details, orientation differs based on the number of panels being installed.
Be sure to review notching at the bottom of this page. It is required for all applications.
02Sizing
Every channel costs a quarter inch.
You must not only size your panels to fit within the opening, you must also account for the space the channels require. Reduce widths AFTER all other panel sizing calculations.
3 Panel Seam Cover
1" total across 3 panelsPanel 1 has one "r" channel on the right upright, Panel 2 one on each upright, Panel 3 one on the left upright. Four channels at 1/4" each: a total reduction of 1", spread across the panels however you choose.
Full detail PDF
4+ Panel Seam Cover
1-1/2" total across 4 panelsSix "r" channels at 1/4" each: a total reduction of 1-1/2", which may be taken from one panel, some, or all four. Spreading it equally is usual.
Full detail PDF
Stack Mounting, Horizontal Seam
See detail for sizingPanels stacked one above another, with the "r" channel covering the horizontal seam between them.
Full detail PDFAllocating the reduction
The total reduction can be taken from one panel, some of them, or spread across all of them. It is normally desirable to spread it equally. However you allocate it, it must equal the total required reduction. For three panels needing 1" total:
- 1/4" · 1/2" · 1/4"
- 0" · 1" · 0"
- 1/2" · 0" · 1/2"
03Required for all applications
Notching
Whatever the panel count, the channel is notched. Review these details before cutting anything.
