Source: https://guthlabs.ai/docs/instrument-workflows/home-reno/

instrument kit / verified-workflow-definition

# Home Renovation Estimator

One project, full materials bill.

Status: **observed**Lifecycle: **verified-workflow-definition**

## Goal

One project, full materials bill.

## Instrument chain

- 01

**[Tile & Flooring Calculator](<https://guthlabs.ai/docs/instruments/tile-flooring-calculator/>)**

floors

VERIFIED

- 02

**[Paint Coverage Calculator](<https://guthlabs.ai/docs/instruments/paint-coverage-calculator/>)**

walls

VERIFIED

- 03

**[Wallpaper Roll Calculator](<https://guthlabs.ai/docs/instruments/wallpaper-roll-calculator/>)**

walls alt

VERIFIED

- 04

**[Drywall Sheet Calculator](<https://guthlabs.ai/docs/instruments/drywall-sheet-calculator/>)**

walls build

VERIFIED

- 05

**[Concrete Volume & Bag Calculator](<https://guthlabs.ai/docs/instruments/concrete-volume-bag-calculator/>)**

slab/footings

VERIFIED

- 06

**[Lumber Board-Foot Calculator](<https://guthlabs.ai/docs/instruments/lumber-board-foot-calculator/>)**

framing

VERIFIED

- 07

**[Stair Rise & Run Designer](<https://guthlabs.ai/docs/instruments/stair-rise-run-designer/>)**

stairs

VERIFIED

- 08

**[Roof Pitch & Rafter Calculator](<https://guthlabs.ai/docs/instruments/roof-pitch-rafter-calculator/>)**

roof

VERIFIED

- 09

**[Deck Board & Joist Calculator](<https://guthlabs.ai/docs/instruments/deck-board-joist-calculator/>)**

deck

VERIFIED

- 10

**[Fence Materials Calculator](<https://guthlabs.ai/docs/instruments/fence-materials-calculator/>)**

yard

VERIFIED

- 11

**[Mulch/Soil/Gravel Volume Calculator](<https://guthlabs.ai/docs/instruments/mulch-soil-gravel-volume-calculator/>)**

yard

VERIFIED

## Handoffs and cross-checks

Shared room dimensions fan out; totals aggregate to one shopping list.

## PointGuard stance

Carry waste percentages explicitly and show raw vs purchasable (ceil) quantities separately — never silently round.

## Sources and evidence

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

- `INSTRUMENT_COMBOS.json`

- `VERIFIED_LEDGER.json`