What is the minimum ceiling height?

Saturday, August 4, 2018

Minimum ceiling heights are defined by the building codes for “habitable rooms.” This means rooms intended to be occupied, as opposed to storage spaces, and the minimum height is seven feet. However, there are exceptions allowed, along with qualifiers: 

  1. Rooms with sloped ceilings must have a minimum of 50% of the room at seven feet high or taller. 
  2. Because the minimum square footage of a habitable room is 70 square feet, there is also a qualifier that any area of a room with a ceiling below five feet does not count towards habitable space minimum square footage.
  3. Also, sloped ceilings in a bathrooms must be a minimum of 6 feet 8 inches in front of the plumbing fixture, such as a sink or toilet.

    Also see our blog post Can you access or exit a bedroom through another bedroom?

• • • • • • • • • • • • • • • • • • • • • • • • • • • 

Here’s links to a collection of our other blog posts about STRUCTURE AND ROOMS:

What are the building code requirements for notching and boring holes in a wall stud? 

What causes dark or light "ghost" lines on ceilings and walls?

Can you access or exit a bedroom through another bedroom?

What is the difference between a carport and a garage? 

What are simple ways to find the cause of a ceiling stain?

What is the minimum size of habitable rooms in a house according to the building code? 

Why is my garage ceiling sagging? 

How can I identify what kind of wood flooring I am looking at?

Why does my concrete floor slab sweat and get slippery?

 
Why are there score line grooves in the concrete floor of the garage?

How much can I cut out of a floor joist? 

How can I tell if my floors are sloping?

Why do the floors slope in this old house? 

What are the common problems when a homeowner converts a garage to conditioned living space, such as a family room?

• How can I tell if a wall is load-bearing? Which walls can I take out? 

   Visit our STRUCTURE AND ROOMS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

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