IRC Deck Code Requirements
In order to obtain a building permit for a deck attached to a single family residential home, your plans must be reviewed to be in compliance with the IRC. The International Residential Code (IRC) is a comprehensive collection of the specific rules that apply to residential construction and that is administered by the International Code Council (ICC). If you are a contractor, this book is a must have. You can buy a copy online at www.iccsafe.org.
Nearly all states in the US have at some level adopted the International Residential Code as the model building code for construction of one- and two-family dwellings (duplexes), as well as townhomes. Townhomes are unique multi-family structures with an unlimited number of connected dwelling units. However, the units must be separated from the foundation vertically to the roof; no part of any one can be under or on top of another. Each unit must also be open on at least two sides. Traditional row homes are an example of townhome construction under the IRC.
In regions that have not adopted the IRC, they likely use the group R-3 exceptions contained in the International Building Code. These exceptions generally modify the commercial rules to be very similar to the IRC. Building codes are not regulated at the federal government level, and they are the authority of the state.
The building inspector’s job is to interpret and enforce the rules as they are stated in the IRC. In other words, inspectors are not allowed to make their own rules. Because of this, building codes should be fairly consistent from city to city and state to state.
IBC Requirements For Decks
The International Building Code (IBC) regulates deck additions attached to commercial buildings. Learn how IBC requirements may affect your project at Decks.com.
Permits for Building a Deck: Why You Need One and How to Get It
Many homeowners are surprised when they are told they need to get a permit in order to build a deck. It may seem like a hassle, but it’s well worth the small investment of time and money to ensure your deck is built to code standards and in compliance with local regulations
Contractor Problems? How to Communicate with Contractors and Handle Disputes
When working on a large construction project, there are bound to be bumps in the road. Learn how to handle disputes with a contractor with Decks.com.
How to Build a Patio With Stone or Brick Pavers
Planning and installing a DIY brick or stone paver patio is a big project. Learn how to build a paver patio from start to finish here.
Parts of a Porch
Porches, just like decks, have a lot of different & important parts. Learn more about the anatomy of a standard porch with this article from Decks.com.
What is the Average Cost to Build a Front Porch?
The average cost to build a front porch depends on the type of porch and materials you use. Discover the costs of building a front porch at Decks.com.
More Helpful Resources
Explore Articles by Topic

Footings
Information related to installing frost footings for decks

Framing
Learn structural framing methods

Decking
Learn about wood and composite decking materials

Stairs
An in-depth look at the complex issue of how to build stairs

Railings
How to install guardrails and handrails to meet IRC code

Features
An overview on water drainage, benches, planters and lights

Design
The basics of deck design

Planning
Learn about permits and working with contractors

Porches & Patios
Build a covered deck to enjoy all seasons

Ledger
Proper attachment techniques

Care
Maintain your deck to maintain your investment

Materials
An overview on water drainage, benches, planters and lights
How to Grade Your Yard
Master the art of yard grading! From choosing the right slope to understanding the costs, this guide covers everything you need to achieve a properly graded yard that protects your home and enhances your landscape.
Building A Deck Over A Septic Tank
Building a deck on or near a septic tank is not the best idea and can result in a damaged or punctured tank. Learn more about building near a septic tank at Decks.com.
Contractor Problems? How to Communicate with Contractors and Handle Disputes
When working on a large construction project, there are bound to be bumps in the road. Learn how to handle disputes with a contractor with Decks.com.
9 Conservatory Design Ideas for Indoor/Outdoor Living
Conservatories are a great way to ensure that you (and your plants) can soak up the sun all year round. Get inspired with conservatory design ideas.
7 Tips to Keep Bugs Away From Your Patio
Don’t let mosquitoes, flies or ants stop you from enjoying your patio. Learn the best way to keep bugs away so you can get back to relaxing at Decks.com.
How to Build a Porch: Steps for Building a Front Porch Deck
Building a porch can be challenging, but allows you to enjoy your outdoor space year round.Learn the basics about building a porch roof over a deck at Decks.com.
Explore Articles by Topic

Footings
Information related to installing frost footings for decks

Framing
Learn structural framing methods

Decking
Learn about wood and composite decking materials

Stairs
An in-depth look at the complex issue of how to build stairs

Railings
How to install guardrails and handrails to meet IRC code

Features
An overview on water drainage, benches, planters and lights

Design
The basics of deck design

Planning
Learn about permits and working with contractors

Porches & Patios
Build a covered deck to enjoy all seasons

Ledger
Proper attachment techniques

Care
Maintain your deck to maintain your investment

Materials
An overview on water drainage, benches, planters and lights