Orbital cellulitis is a serious condition that usually occurs secondary to infection in the maxillary and ethmoidal paranasal sinuses. If left untreated, it can lead to blindness, cavernous sinus thrombosis, meningitis, or cerebral abscess.
Marine plywood is frequently used in the construction of docks and boats. It is much more expensive than standard plywood: the cost for a typical 4-foot by 8-foot 1/2-inch thick board is roughly $125 U.S. or around $3.50 per square foot, which is two to three times as expensive as standard plywood, depending on grade.arine plywood can be graded as being compliant with BS 1088, which is a British Standard for marine plywood. There are few international standards for grading marine plywood and most of the standards are voluntary. Some marine plywood has a Lloyd's of London stamp that certifies it to be BS 1088 compliant.
Why would you select marine-grade wood or plywood when building or buying outdoor furniture? The key word here is marine, as in, by or near the ocean or other body of water. Also known as waterproof plywood, this type of plywood is made using water-resistant hardwood layers and gorilla-strength glue.Marine plywood is often used for outdoor projects like fences, gazebos, boats, and patio furniture -- objects that could experience damage due to moisture and condensation.arine-grade plywood is constructed from layers of wood, bonded or blued together, with the layers running at right angles to one another using waterproof glue.