using a jigsaw, cut off the excess wood
finishing off the new porch floor
use router to round edges on floor top and bottom
prime and paint after sanding edges smooth
Trim the Excess
After you've nailed all boards into place, come back and run a straight line across the excess out boards. Make sure and allow for any trim moldings that may go under the front of the porch. Using a jigsaw, cut off the excess wood. This will provide a straight edge for finishing (Image 1). Use a router to round the edges on the top and the bottom (Images 2 and 3). Sand the edges smooth, then prime and paint (Image 4). Always remember to prime raw wood before painting the finish coat.