Size of two-way mirror

[dnorthrupva]

https://www.amazon.com/Viewsonic-VA2446M-LED-24-Inch-1080p-Monitor/dp/B00D601UC8?ref_=nav_ya_signin&
I’m buying this monitor, removing the bezel, but trying to figure out what the size of the mirror I need is. I’ve been referencing guides that use similar monitors, but none of them specific -what- size of mirror to buy.

Any assistance would be great - Thanks.

[berlincount]

@dnorthrupva what I did is look up the exact specs of the actual panel and used that. (well, almost - I added add Touchscreen frame in front of it, and used the dimensions of that, but the principle is the same - take the outer dimensions of your largest element …)