TimberTech Resurfacing Pavers will raise the surface of the deck by 1.75”. This will lower the railing height and raise the height of the bottom step. When capping off the steps, the riser trim may reduce the depth of the stair tread. Make sure the addition will not affect the deck being up to code. It is also important to keep in mind the height of any door threshold on the deck. In some markets, fire ratings may also need to be considered.