# Four Hour Walk Through with True Scale Studio

> Extended time on the floor for large and multi-storey homes. Each level is projected in turn at full scale, so you can walk the ground floor, then the first, and understand how the home works as a whole , stair placement, circulation, room-to-room flow, and where the space genuinely doesn't work before it's built. The time also allows for the harder work: running variations, resolving a layout that's been stuck, and getting sign-off from everyone who needs to see it. Best for: large homes, multi-storey builds, multi-unit developments, and design reviews where the client team, architect, and builder are all attending. Once you book, you'll receive a confirmation email with a secure link to upload your plans.

- Host: True Scale Studio
- Duration: 240 min
- Location: In Person (Organizer Address)
- Host time zone: Pacific/Auckland
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/true-scale-studio/fourhour-walk-through
- Event type id: 6758998

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6758998&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 6758998,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "attendeePhoneNumber": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `attendeePhoneNumber` (Phone number)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.