Array

Array is use to clone the objects and put them in to the position the user want.
I have create a box, then from the menu choose tools and array, the array menu will pop up and from that menu I choose 3D, count 13 and change the x, y, z value as it show on the images, to form the stair.












I then do the same to create the banister, just by changing the width and height of the box.












To finish off I add the wall using the wall tool and plane to make the floor. Then I change the position of the spindle on the keyframe to form the animation.