Stairs: Runs/treads and landings both count in square footage totals. They are measured as a part of the floor “from which they descend,” so are generally counted twice in a typical two-story home with a basement.

Stairways and closet areas are **included in** the **square footage** length. Finished attic **square footage** is included if an area has at least seven minimum feet of clearance. Covered, enclosed porches can only be included if they are heated using the same system as the rest of the house.

Subsequently, question is, does square footage include all floors? House **square** foot only **includes** the ground **floor** and second **floor**. It excludes the basement, garage, attic, etc. It also exclude open areas in the second **floor** that look down to the first **floor**.

Thereof, how do you calculate square footage of stairs?

**How to Find the Square Feet of Stairs**

- Measure the length and width of the horizontal surface of the second step from the bottom.
- Multiply the two numbers to get the total number of square inches of the step.
- Count the number of steps and multiply that number times the average square inches of each step.

What is considered finished square footage?

In general, areas like staircases and closets count as **finished square footage**. Spaces like garages, three-season porches and unfinished basements or attics are not included in the **square footage** of a house.

### Is house square footage measured inside or outside?

The measured indoor space (all rooms, closets, hallway, vestibule) equals 1,430 square feet while the house is listed at 1,680 square feet. My agent told me the square foot differential exists because I measured the house from the inside while the standard procedure is to measure from the outside.

### Why is basement not included in square footage?

A Standard Answer: Basements should NOT be included in square footage according to Fannie Mae and ANSI guidelines. In short, if the area is below ground level, it doesn’t count as living space. This does not mean a basement cannot contribute to the value though.

### How does an appraiser determine the square footage of a house?

Appraisers tend to use one common measurement type when it comes to measuring the square footage. They measure the Gross Living Area of your home. For condominiums, they generally just measure the interior meaning only the inside area of your unit. Some may add 6 inches to the measurement for the wall thickness.

### Are stairs counted twice in square footage?

Stairs: Runs/treads and landings both count in square footage totals. They are measured as a part of the floor “from which they descend,” so are generally counted twice in a typical two-story home with a basement.

### What is considered gross living area?

As defined by the Appraisal Institute’s Dictionary of Real Estate 4th Edition: “Gross Living Area (GLA) – The total area of finished, above-grade residential space excluding unheated areas such as porches and balconies; the standard measure for determining the amount of space in residential properties.”

### How do I calculate the floor area of my house?

Floors. For a square or rectangular room, you will first need to measure the length and then the width of the room. Then multiply the length and width. Length x Width = Area.

### What is considered living space in an appraisal?

The key word is “living.” When calculating GLA, each space must be considered a living area. This definition includes bedrooms, bathrooms, kitchens, dining rooms and living rooms, per guidelines laid out by the American National Standard Institute (ANSI).

### How do you calculate the floor area of a building?

Floor area ratio (FAR) is the measurement of a building’s floor area in relation to the size of the lot/parcel that the building is located on. FAR is expressed as a decimal number, and is derived by dividing the total area of the building by the total area of the parcel (building area ÷ lot area).

### How much should it cost to carpet stairs?

To carpet a flight of stairs, the average homeowner spends around $75–$250 of an additional cost to the price of carpet installation. Some carpet installers will charge by the stair at $3–$10—for a basic set of box stairs—or $5–$15 per stair if you have spindles from a handrail.

### What is standard size of stair?

The stair’s width usually varies depending on the type of building the staircase is in, but for a normal residence, the standard tends to be 3 feet, 6 inches (106.7 cm). The minimum, in most places, is 2 feet 8 inches (81.3 cm). If a staircase exceeds 44 inches (111.8 cm), handrails are required for both sides.

### How many square feet is 13 stairs?

7 inches for each rise and run plus two inches for the nose and overage. 16 inches x 13 stairs = 208 inches. 208 inches/12 = 17.33 (round up) = 18 feet. 4 x 18 = 72 square feet.

### How much does it cost to carpet 14 stairs?

As for each step this is 12″ deep by 33.5″ wide. Multiplying this will give you 2.79 square feet (since 33.5 inches equals 2.70 feet.) Multiply 2.79 square feet by 24 steps and you get a total of 66.96 square feet for the step portion of your stairs.

### Are stairs at 45 degrees?

For example, if you were crazy and built a staircase with a 12 inch tread and riser, then the angle of the stringer to the floor would be 45 degrees. A more common angle is about 37 degrees.

### How many stairs can you have before a landing?

Length of flight Stairs with more than 36 risers in consecutive flights should have at least one change in direction between flights. For buildings other than dwellings, the maximum number of risers between landings should be 16 for utility stairs and 12 for general access stairs. There should not be any single steps.