How To: Method A1 Vinyl Patio Door Installation

Learn to install a vinyl patio door using the A1 method using the OSI QUAD® Window & Door System products. Learn more about the best practices when using OSI QUAD Window & Door system to install a patio door.
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[@anishamm685]

VERY GOOD TUTORIAL VIDEO. THE BEST I'VE SEEN UNTIL NOW

[@ironjohn5914]

I remember installing sliding doors like this in Cambodia 🇰🇭 on a missions for homes trip~