Backseat Buildup Recommendations???

[fantastixvoyage]

Need to build a backseat from scratch and looking to gather some details on other examples.

If anyone has buildup pics or pics of their seats with and without the foam/vinyl that would be great. Trying to see what the main base needs to look like.

Plan to be a semi divided seat with a step or two built in but be neat to see what others have done out there.

[rchuntlsl]

You can use 5/8 or 3/4" ply wood to build it up. I would get some economically priced epoxy and mix up a bunch and seal up the plywood on all sides before you cover it with foam or vinyl.

[hadleycat]

Hey Neil, How do you want to finish the base? If you are going to carpet it I would use MDO plywood and paint it before applying the carpet. If you are thinking Gelcoat I would use AC fir because it will absorb the resin better. If you need some plywood let me know. If you give me sizes I can even cut it up for you. I work with plywood quite a bit at work and am sure I could find some extra pieces laying around

[bustedbrick]

Here are some pics of the one I am working on. The seat base is one piece and the back is a separate piece. The base is designed to rest against 1/8" x 2" x 2" L-angle Aluminum screwed to the sides of the cockpit. This supports three sides so I have vertical supports screwed/glued to the base to support the middle and the forward edge. I have cutouts in the plywood supports so that water can flow between them during hose-out so it will drain. I really wanted to be able to hose it out so I left a 2" gap between the front of the seat and the floor.

I used 1/2" marine ply. Is $72/sheet which is pricey but it is really nice and straight compared to cheaper ply. I think it's worth it just for that (apart from the waterproof glue used). Also no voids in the middle layers. I plan to glass the exposed edges and joints with a couple layers of glass and maybe a single layer over the rest of it just to seal the surface.

I have built all the pieces shown with 2 sheets. Seat is 78" wide. No upholstery yet, still trying to figure out how to tackle that.

Randy

[puzzleboy]

Just redid all the wood in my sunpad. What do you guys use to seal the wood - regular glass resin brushed on, or an epoxy, or?

Thanks,

J

[Thunderstruck27]

Need to build a backseat from scratch and looking to gather some details on other examples.

If anyone has buildup pics or pics of their seats with and without the foam/vinyl that would be great. Trying to see what the main base needs to look like.

Plan to be a semi divided seat with a step or two built in but be neat to see what others have done out there.

I bet you can get a lot of good ideas and help if you copy this thread to the Fiberglass and Paint forum...just a suggestion. Good luck with your seat rebuild.

[jason y]

here is part of mine i just got done with no before pics but i built it all up in couple nights 3/4 plywood with 2x4s and woodscrews and a good coat of thompson water sealer
its in my 77 255 liberator still have more to recover/build

[jason y]

my back seat is like busted bricks but has 2x4 on edge for the back support be sure to round your edges and corners off with a sander or router before u take to upholstery shop

[KEVLARKAT32]

Plywood is the stone age !!! Starboard board light is what is used on all modern day boats ...................

[puzzleboy]

Where can you buy Starboard?