limit the amount of furniture in the room.

What size bed do you hope to have?

Where is the window(s) and door?

This is 13 x 15. Large enough for a modest bedroom, but I would not consider it spacious. A king size bed would take up the room and not allow space for the chair.

What furniture is going in those extra bedrooms? Are they guest bedrooms or kids’ bedrooms?

They are kids/teenagers bedrooms. They currently have double beds and a dresser. Their current bedrooms are very small, like 10’1” by 11’4” and they hate them. if we build, I want them to be happy and not feel so cramped.

Being able to place dressers or drawers inside a walk-in closet goes a long way to making a room feel spacious.

Sizes of all rooms relate to context of the entire house. There should be an heirarchy of room sizes which is in part based on function.

If your Master is 14x16, then 10x12ish for secondary bedrooms is appropriate. Likewise proportional Living, Dining, etc.

If your Master is 18x22, then 14x16ish for secondary bedrooms is appropriate. Likewise proportional closets like walk-ins, etc.

Agree that the location of doors, windows, and closets has a big impact on how furniture will fit. I'll add to that the location of floor vents, since putting anything that sits low on the floor will block the vent. (I have a platform bed with storage to the floor in a guest bedroom, and couldn't place it along one wall because of an existing floor vent. This was an existing house not a new build.)

"If we build" . You haven't even started the process. Do you own a lot on which to build? The size of the lot; the code in your town; septic or town sewage requirements, will determine what you can or cannot build. In my town, East coast, you need 10,000 sq feet of land for each bedroom. Once you know the size of the house you can build (engineers), then you can work with an architect to draw up a plan which you or your builder presents to the town for approval. Hey, at this point, you may have a plan where bedrooms maybe larger than you expected.

If you want to get a feel for different bedroom sizes at this stage, take your children to visit new construction model homes in your area.

elcieg, 10,000 sq ft per BR? That’s 3x or more than typical lot sizes for 3-4 BR in my town ( even if done adjacent lots are bigger) , so is that an error, or special neighborhood requirements ? A few specifically designed neighborhoods farther out from the center of town here might have 1-acre lots or large 5-acre lots, for example.

I agree to all the staements here as to layout . I find closet storge insted of dressers is a great way to gain space in a small bedroom IMO a 14 x14 bedroom is a good sized space but doors, windows all play a part in how the room is layed out. Take a pice of graph paper draw the space to scale and cut out the pieces to go in the room to the same scale and play with layout . Get the kids to play too. Do thye need a double bed we never had thta size bed for our boys but all had XL twin beds since they are all tall. We got trundles when they got old enough to have sleep overs Keep in mind teenagers will soon be gone and you will have big spaces to fill for no perpose other than the kids home for holidays

I think that 10,000 sq ft per BR has to do with the size of the septic tank that will handle that number of people/bedrooms.

We owned 2 houses in the northeast with septic systems, but they simply capped size based on bedroom count versus the size of septic system and nothing to do with lot size, although generally a bigger lot will allow a bigger septic system, unless you have wetland and/or poor soil conditions.

No limit on bedroom in CA or FL for homes connected to the sewer system.