I've seen that mobs can be trapped within glass pane fairly easily, and would love to make a nice green house with a glass roof to let sunlight in during the day. But I can't seem to cajole my glass pane to take any shape other than the T-intersection shape that allows me and mobs to walk in through the roof.

Am I stuck using glass blocks, or is there a way to create the glass roof I desire?


You cannot, glass panes are only vertical.

You're gonna have to use regular glass blocks unfortunately.

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    Damn...thank you...how do people keep their trapped mobs from jumping out then? – Zibbobz Apr 13 '14 at 5:07
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    @Zibbobz normally what i see the glass walls are 2 blocks high, to save on glass panes rather than doing a 3x3 box they make a 2x2 box because when the glass panes join they create a small space in the middle – Memor-X Jun 30 '14 at 2:18

You need to use glass blocks. Sorry!

To keep mobs in just make 2-block high wall.


Unfortunately as the other answers say, this isn't possible in vanilla Minecraft. But you can install a mod to achieve this.

Horizontal Glass Pane mod


Well if you have microblock instaled you can make glass covers, they look almost exactly the same. You can place them anyway you want

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