The choice of the rug pad you use as padding between the floor and your carpet can make or break the carpet in question. This is because of the great difference in quality between certain types of materials commonly used for rug pads, as well as the lack of compatibility between some rug pads and the carpets they are meant to support. Before anything, when deciding to buy a rug pad or several of them, make sure to consult with the manufacturer of each carpet to know exactly which rug pads don't go with your carpet and could damage it before even considering the material of the padding. Once that is out of the way, it's time to focus on choosing the right material manufactured the correct way to suit your specific needs. What people look for in a rug pad can vary from person to person. Those whose carpets decorate a family home, especially if children are involved, will look towards their rug pads, usually 8 x 10 rug pads or similar, providing comfort above all else. The carpets of such people often experience shoeless traffic over the rug, as well as people of all age sitting down on the carpet for prolonged periods of time. Because of this, the optimal choice of rug padding is one that is as cushy as possible, without much worry for support or even stability. Temperature insulation also plays a big role here, as a properly insulated rug pad of sufficient thickness can keep the carpet around room temperature even during the coldest of days.While such rug pads, often made from either prime foam or wool, are the prime choice for comfort, they do terribly in the face of high traffic and heavy weight being placed upon the carpet, usually from furniture. This highlights how important it is to assess your situation and know exactly the type of rug pad you want as opposed to getting one that just seems like it could help. A cushy rug pad placed under a high traffic carpet is going to fare very poorly and break down soon, wasting your money. A rug pad that is not designed for sliding prevention can have all the other benefits one can think of but won't do much to keep a rug in place when someone walks over it, nor save that person from slipping or even falling badly once the rug is swept under them. Hard rug pads of high density are the best choice for high traffic areas like hallways, where the sheer amount of footsteps requires the rug pad to be of exceptional sturdiness lest it break down fairly soon. Regardless of the choice of material, the rug padding will always be available in the exact size of the carpet, from small carpets covering just one area of the room all the way to carpets needing 8 x 10 rug pads or even higher. As it is often the case, the increase in dimensions will also result in a proportional increase in the price of the rug pad.