There are various materials that you will require for building a deck bench. Firstly you will need to cater for the posts, foundations and posts bases. Cement is naturally a good idea to ensure that your deck will remain firmly in place and crushed stones and cinder blocks will assist in this process. The floor of the deck itself is to be made with your choice of wood and this will have to be bought in long planks or strips. In order to secure these you can choose either nails or deck screws. Washers are required for both of these materials and professionals recommend that if you are going to go with nails use stainless steel ones. These are likely to last a lot longer.