Your butt joints. With time, and as the deck’s wood contracts, the joints will become extremely uneven when gap is present. The issue can be fixed with the use of a breakerboard. This will connect all seams together in one horizontal piece.
Another thing to keep an eye on is the stringers. If your stringers have not been placed properly, your deck will not provide proper support. Stringers should be placed every 12 inches for stability.
A deck should have adequate footings of frost. Different locations have different requirements in terms of how deep frost footings must be, so make certain to construct your deck in accordance with those requirements.
Make sure that your deck is constructed using solid foundations. Making a mistake when building your foundation can pose a huge threat to the safety of anyone who sets foot on the deck.
If you do not do the correct thing when you are building the deck, it could be damaged. It is best to completely rebuild the entire construction starting from beginning to finish. Before beginning the construction process be sure to know exactly what you’re doing.