Abstract: A crate has an arrangement of fastening holes for mounting crate components, as well as various mounts and accessories to the outer and inner surface of the crate. The fastening holes are blind holes that do not breach, penetrate or pass-through panels defining the crate so that the crate remains watertight or sealed or leakproof. The fastening holes may be arranged to provide points of intersection for rules or guides that define a grid to aid in mounting components, mounts and accessories at desired locations. Outer fastening holes are provided in a repeating pattern and superimposed on inner fastening holes. The fastening holes provide for ease of customization without the need for drilling.

Abstract: A mounting structure has characteristics, properties, or features that provide stability for the accessories mounted or supported in relation thereto. The mounting structure may be in the form of a rigid or a semi-rigid composition, which may be formed at least in part by, or sufficiently covered or coated with, a material having a damping capacity, or an ability to isolate an accessory for a vessel, a slotted track supported in relation to the vessel, or a mounting arrangement supported in relation to the vessel or the slotted track. The mounting structure may be in the form of an extension arm for offsetting the accessory laterally, crosswise or transversely in relation to the vessel, slotted track, or mounting arrangement. The extension arm may include, or carry, a surface, that is configured to interlock with a surface of a mating structure, namely, a mounting arrangement and/or an accessory or accessory mount.