There are very few decks made completely from vinyl. Vinyl is not typically strong enough to support the weight of chairs, tables, grills and people. However, many decks do use waterproof vinyl covers to protect the wood under the cover from water damage. These decking covers can become scuffed or full of holes due to improper use. Luckily, it is possible to repair the damaged decking by patching the area.
Cut out any rough areas of the vinyl decking with a utility knife. Cut the edges into a circular or square hole to make the repairs easier.
Measure the area of each of the holes in the vinyl deck pieces. Cut a replacement patch to the same size as the newly cut hole in the decking. Fit the patch inside the hole to test the fit. The edges should match up exactly. One way to do this is to place the patch over the hole and cut through the vinyl while holding the patch over the hole. If the edges do not match exactly, cut a new piece or trim the existing piece until they do.
Cover the hole in the vinyl with waterproof glue. Allow the glue to sit for about a minute then press the patch firmly into place. Make sure there are no air bubbles. You can place a heavy object, such as a cement block, over the patch to hold it down as it dries. Allow the glue to dry for 12 hours.
Remove the block and apply a second line of glue around the seams between the patch and the original floor. Use a damp cloth to smooth the glue so that there is no bump around the seam. Allow this glue to dry for 12 hours as well. Repeat the process for all repairs necessary in the vinyl decking.