Large glass pane solo carrying method - GIF

[Frank S]

I was wondering how much it might weigh.

Since different sheets of glass or different types of glass can have varying densities, I used the tempered glass density of about 157 lbs. per cubic foot. it weighs a tad more than that but bonehead math is close enough since some glass can weigh as much as 231 lbs cu ft (Flint) or a little as 137 for (silica)
Assuming the sheet is 4ftx8ft x 1/2" we are looking at around 208 lbs. A full load for most strong healthy men.