# Inner and Outer Surface Area

**Possible inner surface area inputs**

Inner surface area takes any non-negative number as a input

#### Example request for updating the **inner surface area** in the API call

```
{
"postcode": "1234AB",
"housenumber": 1,
"innersurfacearea": 123
}
```

**Possible outersurface area inputs**

Outer surface area takes any non-negative number as a input

#### Example request for updating the **outer surface area** in the API call

```
{
"postcode": "1234AB",
"housenumber": 1,
"outersurfacearea": 250
}
```