Check the instruction manual for the loft railing for a parts list. Compare the parts included in the box with the list of parts that should be in the box. Notify the retailer or the manufacturer of any discrepancies to increase the chance that they will be replaced without cost.
Position the long section of premanufactured railing against the side of the loft bed so that it is perpendicular to the ends of the bed. Line up any predrilled holes in the railing with the predrilled holes in the bed ends and have an assistant hold the railing in place during installation.
Set the included attachment equipment in the holes and fasten it according to its particular type, using a drill, screwdriver, Allen wrench or standard wrench to tighten the screws, bolts or metal pegs. Tighten all fasteners only halfway until all fasteners have been attached on both ends of the bed. Then fully tighten the fasteners so that the railing is firmly affixed to the bed.
Repeat the previous steps to add a railing to the other side of the bed for maximum security. Additional railing boards may sometimes be used underneath the bed section for further frame support or to form a ladder for entry and exit from the loft bed.