The Yachtsman Series fixed window provides a leak-proof unit for use in almost any conditions. The framing is offered in a variety of finishes and is designed to accommodate 3/16", 1/4", or 3/8" thick glazing. 3/16" glass is recommended for use only in smaller windows. Forward facing or larger windows typically use 1/4" glass. For vessels subject to severe weather conditions, 3/8" glass can be specified.