BOAT CONSTRUCTION Arrangement of Stem, Apron, Etc. 101 Construction of the Fore End of a Boat. Breasfftook Fig. 10. The small double line on the stem is the iron stem band* The line separating the apron from the stem indicates the position of the rabbeting for taking the ends of the planking. The three small shaded pieces are the timbers. The fitting with the three through bolts is for the attachment of the lifting hook. Note that in this case the stem band is extended far enough aft to take the heads of these bolts. If not extended so far, a separate plate must be fitted.