The materials that are usually used to design this kind of bath tub are various, some are made from acrylic materials, some are from marble or even from stones. It depends on the concept or theme of the bathroom. The claw feet are supposed to hold up the weight of the bathtub and also as additional accessory that beautifies the look of the bathtub. Kohler freestanding tub with claw feet is basically like regular freestanding tub that are available in the market. Freestanding tub is a type of tub that doesn’t need wall to lean on, so it stands independently. However the shape of the tub is usually rectangular, oval, semi rectangular or it can be like a half egg, a bowl shape with rectangular foundation. It also has claw feet in each corner of the bathtub. Ideas & Inspirations.