3/8 seam is slightly stronger than the quilting seam of 1/4 and will hold up better when stuffing the elephant. To use this as a doorstop it would almost have to be packed so tightly to be heavy enough to hold a door back or be mounted on a small board. If this is the case you can put dowel rods in the legs to extend out from the bottom and then drill holes in the board to fit the dowels.