Defender boat hatches come in just about any shape and size you could ever want. Determine your shape - round, square, trapezoid, rectangular, D shape ? then the size. The rough opening for boat hatch replacement will be the size you'll need to order but other options to consider are the profile (low or medium), the type of flange on the hatch you're replacing and the shape of the corners.
Marine access hatches are an integral part of your boat's construction. Without your deck hatch you can't lean face first into the bilge during a nice swell! While there are fewer options for deck access hatches than boat hatches, Defender offers new and replacement boat hatch doors in a wide array of sizes.
Perhaps your hatch is watertight and it doesn't need replacing but the flange is peeling and looks bad. Defender Marine offers an exception number of trim kits for all sizes of hatches. The kids ripped your screen? No problem - order a new one today! Shades for marine hatches come in handy on early mornings and also throughout the winter to keep UV light from fading softgoods. Scoops and tents are also available through the hatch accessory shop at Defender Marine.