Source: https://guthlabs.ai/docs/instruments/window-door-rough-opening-calculator/qualification/

instrument qualification / verified-clean

# Window/Door Rough Opening Calculator qualification

Verified clean in the current reconciled ledger.

Status: **VERIFIED_CLEAN**Lifecycle: **verified-clean**

## Ledger verdict

Verified clean in the current reconciled ledger.

**Status**: VERIFIED_CLEAN

**Tranche**: tranche-5

**Review vectors**: 4

**Ledger rows**: 1

## Applied errata

No tranche erratum is attached to this unique-name record.

## Adversarial re-test context

The full catalog was re-tested from boundary, convention, and self-check angles in 2,787 requests. Five genuine computational defects were independently verified and corrected. This page reports the current ledger state for this instrument; it does not imply product deployment or interface qualification.

## Release gate

Preserve the verified formulas and conventions, enforce boundary validation, and qualify the executable surface independently before release.

## Other records

[01**Overview**](<https://guthlabs.ai/docs/instruments/window-door-rough-opening-calculator/>)[02**Mechanism**](<https://guthlabs.ai/docs/instruments/window-door-rough-opening-calculator/mechanism/>)[03**Implementation**](<https://guthlabs.ai/docs/instruments/window-door-rough-opening-calculator/implementation/>)

## Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

- `VERIFIED_LEDGER.json`

- `STRESS_TEST_RECEIPT.json`