[SOLVED]How can I make a scene with no unusuable white space?

I created a scene 608 * 448 and when I ran the game, theres a extra vertical white space 32*32.
How can I make it so it's exactly 608*448 without no extra empty space in the room?

Go to the scene editor, do what's shown in the picture. Then you can click on your scene and delete a column.

Thank You!