How CustodyBuilder Works

This page documents how calendars, percentages, calculators, templates, and guides are produced and reviewed — the methodology reference for the entire site.

Reviewed by CustodyBuilder Editorial Team · Updated 2026-06-25

How Calendar Generation Works

The custody schedule generator maps a repeating rotation block onto real dates.

  1. Pattern selection

    Each rotation ID (2-2-3, 2-2-5-5, week-on/week-off, etc.) defines which parent holds which weekday in the repeating fortnight or week block.

  2. Start date anchor

    The order effective date sets day one. Mid-month starts produce a partial first week — that is correct behavior, not a bug.

  3. Cell rendering

    Each overnight paints Parent A or Parent B on the month grid. Exchange days appear at block boundaries.

  4. Export

    PDF includes color key, month grid, and parent labels for exhibit attachment.

Open custody schedule generator

How Parenting Percentages Are Calculated

Overnight counts drive the percentage — not hours or partial days unless an order specifies otherwise.

Parent % = (Parent overnights ÷ Total overnights) × 100

Open custody percentage calculator

How Schedule Guides Are Reviewed

Each guide cluster owns one search intent. Reviews check for cluster overlap before publish.

How Templates Are Structured

Template cluster pages separate rotation rules, calendar layout, agreement clauses, and Texas SPO language.

How Texas Tools Are Limited

Texas pages own Texas-specific math and possession language — generic tools defer here.

What CustodyBuilder Does Not Do

How To Report Corrections

Send corrections through the contact page with enough detail to reproduce the issue.

  1. Include page URL and tool inputs used
  2. Describe expected output vs actual output
  3. Calculator corrections are checked against formula documentation on this page
  4. Editorial corrections are checked against cluster ownership rules

Contact page

Editorial Review Standards