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What are the differences in 3-season and 4-season rooms?

Many Archadeck of Kansas City screened porch clients first consider building a 4-season room, commonly called a sunroom. Others have questions about the distinctions between 3-season and 4-season rooms.

What are the real differences in building a 3-season room versus a 4-season room? They might be less than you think – or perhaps they are different than you imagined. In fact, Archadeck of Kansas City owner, Dan Hall, explains that in this area, a screened porch qualifies as a 3-season room. Simply put, you can use your Kansas City area screened porch in all or part of three seasons. Generally, a screened porch with an outdoor fireplace can be utilized comfortably March through November. You might even find that some hot summer days are far less comfortable than cool autumn days.

indoor screened porch

Kansas City area screened porches are usable March through November.

What is a 4-season room?

Like a 3-season room, a 4-season room can be used in the number of seasons in its name. The difference is, a 4-season room can be used in any weather, any day, any time of day. Sure, you will get maximum usage opportunities with a new 4-season sunroom, which has HVAC, insulated walls, and all the accoutrements of an interior room. But is a 4-season room really what you are searching for?

brick fireplace sunroom

Leawood KS 4-season sunroom design by Archadeck of Kansas City

Dan Hall asks these two questions during design consultations with clients, who are in the market to build a new 4-season room.

  1. How large is your home?
  2. How many people live in your home?

These are not meant to be intrusive. They are two queries that will lead you to the most important question of all when deciding whether to build a 4-season room. That is, “Do I need more interior living space?” If you have a 3,000 square-foot home with two residents, chances are you would get much better use of a screened porch 3-season room. After all, many Archadeck of Kansas City clients are looking for an outdoor escape, where they can enjoy fresh air and sunshine. What’s more, you will save an average of $15,000 building a screened porch with an outdoor fireplace instead of a 4-season room.

screened season room
Maximize your outdoor living with a true outdoor space.

What if we said your screened porch can be a partial 4-season room?

It might seem far-fetched to think about using your screened porch in the winter. This is especially true on the heels of the extremely cold weather we have experienced in our area. If your screened porch has a cozy outdoor fireplace, augmented by a secondary heat source, it can be enjoyable in the winter too. The Kansas City area has at least a few unseasonably warm winter days each year, and with installed radiant heating you can use your porch on days you never thought possible. Owner, Dan Hall, recently visited a screened porch client, who said she had been enjoying her porch a few evenings in a row – in January!

radiant heat porch
Radiant porch heaters can expand use of your porch in the winter.

At Archadeck of Kansas City, we know there is no incorrect answer to your outdoor living needs. Our comprehensive design consultation will allow us to help you determine which type of living space will best accommodate your requirements. Whether that is a 3-season or 4-season space, you can count on a completely customized, quality-constructed living area that will fulfill all your needs.

Also read: Pros and Cons of Adding an Outdoor Fireplace

If you are looking for a 3-season or 4-season room builder in the Kansas City area, Archadeck of Kansas City wants to be your first choice. Get in touch with our award-winning Design Consultants for a design consultation by calling 913-851-3325 or emailing