kelly r
i use a dust ruffle so i can store things under the bed and they dont show the dust ruffle goes between the mattress and box springs

cheyenne
A dust ruffle is usually just used to hide box spring. You don't need one if your bedspread/comforter is long enough(almost to the floor)

forktonguebush
The dust ruffle goes over the box spring. Lift the mattress off the box spring and spread out the dust ruffle. It's purpose is to make the bed look PRETTY and you won't see the dust underneath.

mom-knows-best
Put the dust ruffle on your box spring and let it hang over your side rails. It you have a board that runs top to bottom (like a king size) you can make a hole for it to go through. OR You can remove the decking fabric (the big white area) and either sew on velcro or just staple the skirt to the backside of your bedrails and footboard. The main purpose of a dust ruffle is decorative, it covers up your boxspring and hides any junk that you might have under your bed.

intrepid
See above. It definitely goes between the mattress and box springs. You can use a thin ventilated plastic pad that is made to hold rugs to he flooring, between a mattress and box springs to keep the mattress from sliding around.

addybme
a dust ruffle is just for decoration. You should get a wrap around dust ruffle. then you dont have to fight with it when your making your bed and such.