There are many reasons why you may decide you

One of the reasons you may require additional storage space is if you are selling your home. In order for it to show properly you should clear out any items that make your home appear cluttered or crowded. If a viewer has to wind their way around your possessions they will not see the property as it should be seen.

If this is your reason then you will need to decide what exactly you will be storing and for how long. It is a good idea to remove books and things from most of the shelves so the wall will appear larger and the rooms bigger. So you will be storing boxes of books and any thing else you have on the shelves.

Closets when opened should not be so full that things come flying out of them, or down from them. You don't need a potential buyer ducking when a closet door is opened. So you will be needing storage for clothing, bedding or the like.

If you have too much furniture you may need to store some of it. Unlike the boxes of books and clothing and so forth, these items may be quite large and bulky. So you have to consider a storage space that can contain odd shaped and bulky items.

Another area that should be fairly empty so that the amount of space appears large is your kitchen and bathroom cupboards. This means you will be storing glassware, dishes and bathroom items. Again most of these can go in boxes which are fairly uniform in shape.

Another area where you may need to pack things and put them in storage is the garage or shed. It is a good idea to begin packing up these areas well before you plan to show the house. These are prime areas where people tend to stock pile stuff. So a lot of the things in these places could probably be thrown out. The remainder of the things in these areas tends to be large and bulky like hoses, rakes, and spare tires and so forth. You may even have some hazardous materials that should be stored. So you will again have to consider a storage space that will house odd shaped items and perhaps safely store hazardous materials.

Once you have ascertained what you will be storing then you can do a recognizance of the available storage paces near you. Once you have done this and received an idea of the costs involved, you can decide which storage you will use.