I have the same boat you have , mine is listed as a 14 foot but actually measures 13.5 feet.
I hate to be the bearer of bad news , but get that pressure treated wood off there as fast as you can, It will eat the transom off the boat. A web site called Iboats has good info on such things.
I just replaced the wood on the transom on mine also , I used mfd but coated it with gluvit which is an epoxy , I haven't had mine in the water yet, but I am sure it will be a lot more stable than a 12 foot sears boat that I have had for a couple years, 2 people a 5hp. motor ,gas can and trolling motor ,battery , and a little gear and it seamed overloaded, this one is a foot wider and foot and a half longer , so should be a lot better.
I am just finishing up a trailer for it, so hopefully I will still go fishing yet this year. lot of lakes close to me and some open year around.
Have fun, stay safe.
Rich