If anyone wants to build the OneMan boat before the step-by-step written instructions are finished, the dimensions are there now. Any questions you might have can be asked here!
1) build AND STRAIGHTEN the plug or form (1/4" construction grade plywood plut 1/2" wafer board)
2) Scarf two sheets of 3/4" Plascore to make a 4x16. Now cut out the side pieces and the two transoms.
3) Scarf up a bottom panel blank.
4) Cover the form with thin 4mil visqueen
5) Attach side pieces and transoms to the form. Glue the edges together
6) Trace out the bottom panel. Cut the bottom panel as marked in the tracing process. Preglass the inside surface only. Attach the the bottom.
7) Glass up the outside
8) Pop the hull off the form. Straighten it up one more time. Glass the inside
9) Scarf up a deck panel.
10) Trace out the deck panel. Cut the deck panel as per traced. Preglass the inside surface only. Attach the bottom panel.
11) Cut a hole for foot well. Make the foot well. Make the foot well. Attach the foot well
12) Mark fastening points for what ever seat mechanism you will use. Fill a few of the honeycomb core cells surrounding any bolt holes or screws.
13) Cut out for any locker lids. Add 3/16" inch shim strips to the edges of the locker lids. I used MiraTech fascia board material, which is a water proof plastic board material. Has little strength but it doesn't swell. And it's only a shim.
Add a rim all the way around the (now shimmed out) lids. Add matching inside rims to the inside of any access hole (you can make flush lids if you are ambitious).
14) Make raised oarlock towers with Plascore scraps and fiberglass. And PVC water pipe for 5/8" inch oarlock pin liners (drill out PVC water pipe with a 5/8" inch twist drill....is it 1" PVC? I think so....I'll look it up and fix this later).
15) The rest is hardware details and fiberglass finishing. Autobody work and paint.
Most people would rather buy a small pontoon raft. A few who--like me like to build things--will make a MRBoats OneMan Dayak instead. You will end up with faster, more stable boat. I need to measure the distance between oarlock pins on a typical one man pontoon. That same distance on my OneMan Dayak is considerably wider. That extra width means the boat floats higher and turns more effortlessly. The Dayak has far more bottom surface to contact the water. So it floats in shallower water. Bumps over skinnier riffles. Stops on a dime. Spins effortlessly. Goes anywhere you want. Quickly. With substantially bigger oars.