Lengthy decor

[FrogLoving17]

Hello FF! On my last thread, i was told to add some more decor to the top of my enclosure to use as much vertical space as possible! I have one whites tree frog who is about 2 1/2 years old in a Zoo med 12x12x18, he seems to be doing perfect at the moment in this tank. Recently i purchased a log to put on the wall, only to notice when i got home it is just over 13 in long. I really love the shape, ect. Any ideas on how i could cut this log to be safe for Mr.Jelly AND most importantly so it would fit in the cage haha? Also, the log is suction cup so are there any ways to make sure the suction cup never falls/comes loose? Any ideas on where to put the log in terrarium would be helpful too! Thanks again!