Very easy to make, stiff, and very stable where positioned/elevated and with little alteration to boat. Used 30" of blind-riveted (and polyurethane adheared as well as I always double up to avoid weakening movements...) "T" (1" back, 1/2" legs) angled aluminum as support on the long edge of the seats for 3/4" MDO ply. Finished the MDO with a few coats of poly, then 220 sandpaper to scuff up for good adherence for self-sticking inexpensive EVA foam from Amazon.
Mounted 3-1/2" below front and middle seat level, just about where seats are riveted to hull (figured it would be the least flexible place) and directly below oar holders and it rests/contacts along the sides of the hull as well. Absolutely 0 flex anywhere on the MDO - could clearly mount a seat post. Also at mounting height I (195lbs) can step into boat anywhere on platform w/o fear of capsizing.
Drilled holes at each side of MDO to easily pull out and remove deck, aluminum supports do not hit the back of your legs when deck removed.
Mounted 3-1/2" below front and middle seat level, just about where seats are riveted to hull (figured it would be the least flexible place) and directly below oar holders and it rests/contacts along the sides of the hull as well. Absolutely 0 flex anywhere on the MDO - could clearly mount a seat post. Also at mounting height I (195lbs) can step into boat anywhere on platform w/o fear of capsizing.
Drilled holes at each side of MDO to easily pull out and remove deck, aluminum supports do not hit the back of your legs when deck removed.
