{
  "schema_version": 1,
  "baseline_date": "2026-01-01",
  "updated_at": "2026-08-14",
  "calculators": [
    {
      "id": "gutter-installation-cost",
      "title": "Gutter Installation Cost Calculator",
      "material_rate": 8.25,
      "labor_rate": 6.5,
      "unit": "linear ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "tree-removal-cost",
      "title": "Tree Removal Cost Calculator",
      "material_rate": 95,
      "labor_rate": 690,
      "unit": "tree",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "spray-foam-insulation-cost",
      "title": "Spray Foam Insulation Cost Calculator",
      "material_rate": 1.65,
      "labor_rate": 0.95,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "stump-removal-cost",
      "title": "Stump Removal Cost Calculator",
      "material_rate": 35,
      "labor_rate": 210,
      "unit": "stump",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "pool-installation-cost",
      "title": "Pool Installation Cost Calculator",
      "material_rate": 32600,
      "labor_rate": 18200,
      "unit": "project",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "home-addition-cost",
      "title": "Home Addition Cost Calculator",
      "material_rate": 118,
      "labor_rate": 96,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "roof-replacement-cost",
      "title": "Roof Replacement Cost Calculator",
      "material_rate": 2.9,
      "labor_rate": 3.15,
      "unit": "sq ft of roof",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "kitchen-remodel-cost",
      "title": "Kitchen Remodel Cost Calculator",
      "material_rate": 18300,
      "labor_rate": 11200,
      "unit": "project",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "generator-installation-cost",
      "title": "Generator Installation Cost Calculator",
      "material_rate": 5200,
      "labor_rate": 2400,
      "unit": "project",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "septic-tank-size-calculator",
      "title": "Septic Tank Size & Cost Calculator",
      "material_rate": 1450,
      "labor_rate": 1150,
      "unit": "bedroom",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "mini-split-sizing-calculator",
      "title": "Mini-Split Sizing & Cost Calculator",
      "material_rate": 2600,
      "labor_rate": 1900,
      "unit": "zone",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "bathroom-remodel-cost",
      "title": "Bathroom Remodel Cost Calculator",
      "material_rate": 8200,
      "labor_rate": 6200,
      "unit": "project",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "heat-pump-cost",
      "title": "Heat Pump Cost Calculator",
      "material_rate": 6800,
      "labor_rate": 3500,
      "unit": "system",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "landscaping-cost",
      "title": "Landscaping Cost Calculator",
      "material_rate": 3.8,
      "labor_rate": 4.2,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "pool-chlorine-calculator",
      "title": "Pool Chlorine Calculator",
      "material_rate": 7.5,
      "labor_rate": 0,
      "unit": "10,000 gal treatment",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "driveway-cost",
      "title": "Driveway Cost Calculator",
      "material_rate": 4.2,
      "labor_rate": 3.5,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "gutter-calculator",
      "title": "Gutter Size & Cost Calculator",
      "material_rate": 7.8,
      "labor_rate": 6.25,
      "unit": "linear ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "insulation-cost",
      "title": "Insulation Cost Calculator",
      "material_rate": 1.05,
      "labor_rate": 0.85,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "countertop-cost",
      "title": "Countertop Cost Calculator",
      "material_rate": 62,
      "labor_rate": 28,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "basement-finishing-cost",
      "title": "Basement Finishing Cost Calculator",
      "material_rate": 28,
      "labor_rate": 24,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "pressure-washing-cost",
      "title": "Pressure Washing Cost Calculator",
      "material_rate": 0.05,
      "labor_rate": 0.3,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "insulation-r-value-calculator",
      "title": "Insulation R-Value Calculator",
      "material_rate": 1.1,
      "labor_rate": 0,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "plumbing-repipe-cost",
      "title": "Plumbing Repipe Cost Calculator",
      "material_rate": 280,
      "labor_rate": 390,
      "unit": "fixture",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "water-heater-replacement-cost",
      "title": "Water Heater Replacement Cost Calculator",
      "material_rate": 1050,
      "labor_rate": 850,
      "unit": "unit",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "roof-pitch-calculator",
      "title": "Roof Pitch Calculator",
      "material_rate": 0,
      "labor_rate": 0,
      "unit": "roof section",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "roofing-calculator",
      "title": "Roofing Materials & Cost Calculator",
      "material_rate": 2.95,
      "labor_rate": 3.1,
      "unit": "sq ft of roof",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "window-replacement-cost",
      "title": "Window Replacement Cost Calculator",
      "material_rate": 560,
      "labor_rate": 240,
      "unit": "window",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "furnace-replacement-cost",
      "title": "Furnace Replacement Cost Calculator",
      "material_rate": 3900,
      "labor_rate": 2450,
      "unit": "system",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "garage-door-installation-cost",
      "title": "Garage Door Installation Cost Calculator",
      "material_rate": 1450,
      "labor_rate": 650,
      "unit": "door",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "btu-calculator",
      "title": "BTU Calculator",
      "material_rate": 0,
      "labor_rate": 0,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "fence-installation-cost",
      "title": "Fence Installation Cost Calculator",
      "material_rate": 24,
      "labor_rate": 18,
      "unit": "linear ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "sod-installation-cost",
      "title": "Sod Installation Cost Calculator",
      "material_rate": 0.72,
      "labor_rate": 0.85,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "hvac-replacement-cost",
      "title": "HVAC Replacement Cost Calculator",
      "material_rate": 6200,
      "labor_rate": 3800,
      "unit": "system",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "furnace-size-calculator",
      "title": "Furnace Size & Cost Calculator",
      "material_rate": 2400,
      "labor_rate": 1500,
      "unit": "1,000 sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "electrical-panel-upgrade-cost",
      "title": "Electrical Panel Upgrade Cost Calculator",
      "material_rate": 1250,
      "labor_rate": 1850,
      "unit": "panel",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "metal-roof-cost",
      "title": "Metal Roof Cost Calculator",
      "material_rate": 7.4,
      "labor_rate": 5.3,
      "unit": "sq ft of roof",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "vinyl-siding-cost",
      "title": "Vinyl Siding Cost Calculator",
      "material_rate": 4.1,
      "labor_rate": 3.2,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "concrete-driveway-cost",
      "title": "Concrete Driveway Cost Calculator",
      "material_rate": 4.6,
      "labor_rate": 4.15,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "deck-cost-calculator",
      "title": "Deck Cost Calculator",
      "material_rate": 18,
      "labor_rate": 15,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "hvac-load-calculator",
      "title": "HVAC Load & Cost Calculator",
      "material_rate": 3600,
      "labor_rate": 2200,
      "unit": "1,000 sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "siding-cost-calculator",
      "title": "Siding Cost Calculator",
      "material_rate": 5.8,
      "labor_rate": 4.4,
      "unit": "sq ft",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    },
    {
      "id": "tankless-water-heater-sizing",
      "title": "Tankless Water Heater Sizing & Cost Calculator",
      "material_rate": 850,
      "labor_rate": 550,
      "unit": "fixture",
      "baseline_date": "2026-01-01",
      "provenance": "modeled estimate, not directly sourced"
    }
  ]
}