Reality Check Design Limits
Code Enforcement

To this point we have avoided discussing any technical aspects of deck building. You will have plenty of time to iron out the structural details once you have a working plan in order. However if you are building a deck you will need to obtain a building permit if your local municipality requires you to. Typically there are fines levied if you are caught building a deck without a permit. Some areas do not require a permit. In this case we feel you should have an engineer or an architect approve your plan befor you start construction. Building codes relating to residential decks are covered under the International Residential Code (IRC). This is a highly technical collection of codes written by the International Code Council (ICC), of which only a small fraction applies to deck construction. These rules are designed to protect the public from faulty construction. You may want to visit your local building inspections department and ask for a handout summarizing the rules regarding deck construction. You will want to become familiar with what general standards are expected. Most rules are related to proper ledger board installation, height and construction of guard rails, stair construction, joist and beam sizing, frost footing requirements, and lists of approved composite decking materials. Don’t let code requirements affect the way you approach your design. Where there is a will there is usually a way to structurally achieve most designs. If you live in a development with a home owners association you may need to gain permission for your project from them. These regulations are generally more geared toward enforcing a uniform look and feel for the community and are less concerned with structural issues.