On your Windows Phone, Start
is your home base: you can keep all of your important stuff as tiles right where you need it, and be able to perform a task with only a tap or two.
You can resize tile sizes so you can pack a lot of apps into a small space or have an expanded live tile. All Tiles can be shrunk to the smallest size, and many can be expanded to span the width of the Start screen.
This tutorial will show you how to resize tiles
on the Start screen
to a selected size you want in Windows Phone 8