A wooden matowaku can easily have a warp and damage, and players have a difficulty in pulling out an arrow which gets stuck in a seam, where both the ends of a wooden strip are fixed; besides, it sometimes hurts the arrows.
木製的枠は狂いや損傷が生じやすく、また板の両端を二重に重ねて綴じた部分（綴じ目）に矢が挟まり抜くのに苦労するし、矢が損傷することもある。