Our Impact Rolls - Wood Series were designed with high impact workouts in mind, so these rolls are great for P90X, T25, and the like. They feature a non-porous top making them very easy to clean and sanitize. This also helps to mitigate the 'gym smell' so many people hate. Since these rolls feature an underlayment backing, these rolls are very shock absorbent, meaning your joints, especially your knees, will love you every time you workout. Our Impact Rolls are very durable and can withstand heavy furniture and equipment on them. The only thing you may notice, depending on how heavy the object is that is placed on the flooring, are indentations where the furniture has sat. If it is only placed on the flooring for a short period of time, then the indentations may go away. If it is there for a long period of time, then they may be there permanently. To prevent indentations, we recommend using furniture sliders under the legs of the furniture or equipment.