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The Complicated Path From Decking to Dirt

Code expert Glenn Mathewson takes a closer look at the evolving code provisions for deck boards, joists, beams, posts, and foundations.
Guardrails vs. Handrails: Where Do You Need Them?

While they're both found on typical staircases, porches, and decks, guards and handrails have different purposes and code requirements.
Top 10 Water-Heater Code Violations

Installing a tank water heater might seem easy, but some of these common mistakes could be life-threatening.
The Basics of Makeup Air

Code expert Glenn Mathewson describes how to provide makeup air for a kitchen exhaust fan to prevent backdrafting of water heaters, furnaces, and other fuel-burning appliances.
A New Old Way to Vent a Kitchen Island

The combination waste and vent system is a simpler alternative to island fixture vents and air-admittance valves, and a recent code change may make it more popular.
Changes to the Building Codes

Code expert Glenn Mathewson explains how changes are made to the International Residential Code, with a chart detailing the code-development process.
Site-Built Shower Pans

Code expert Glenn Mathewson explains the details required by code and modern plumbing standards when fabricating a shower pan, including the two-part drain assembly, the subbase material and slope, the…
Landings for Exterior Doors

Get the specifications you need to install stairs, porches, decks, and more to ensure that a home provides safe, code-compliant means of egress.
Emergency Escape and Rescue Openings

Learn how a sleeping room is legally defined and what sort of egress openings are mandated by building codes.
Electrical Outlets by the Numbers

Building codes dictate specific height and spacing measurements for receptacles and switches. Learn what the most common dimensions are and why.