Re: boat upolstry
Hello everyone,
My wife has been an upholserer for over 20 years now (residential), but we have done a few boats over the years.
If the vinyl is worn out on your boat the foam under the seats is probably also done, use the densist foam you can find. Your plywood backings will probably be rotted also. We used pressure treated plywood to replace, someone else here may have a better suggestion on what to use.
Make sure you don't scrimp on the vinyl you use, we did a boat for a friend of ours who insisted on finding his own vinyl and it has faded after only one year of use.
As someone suggested, take the old coverings off and use them as templated for new material. You may also want to cut the material that is stapled to the bottom longer, of sew cheaper material there to allow you to get a good hold for stretching the material. You want it tight or it will go baggy on you.
When you have to slide the covers on your seats, use silicone spray on the foam/dacron to allow it to slip on. Dacron can be glued on over the foam for a nicer finish, this also lets the vinyl slide better.
Start on the easiest cusion (small and square) to get the hang of it. you can even get some cheaper material to practice with, but the cheap stuff does not stretch as nicely as the expensive stuff.
Hope you get those pictures posted, would like to see how bad they are.