{
  "page": "https://instabids.ai/us/how-to-measure-for-replacement-windows",
  "title": "How do you measure for a replacement window?",
  "skill": "us-answer@3.2.0",
  "evidence_date": "2026-10-24",
  "rows": [
    {
      "label": "Andersen's measuring guide (maker), width",
      "quote": "\"Round down to the nearest 1/8 inch, and measure from three different spots: near the top, at the center, and near the bottom.\"",
      "source": "Andersen Windows, How to measure windows, read 24 October 2026",
      "url": "https://www.andersenwindows.com/ideas-and-inspiration/blog/tips/how-to-measure-windows/",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-andersen-width"
    },
    {
      "label": "Andersen's measuring guide (maker), square test",
      "quote": "\"If the measurements are within 1/8 inch of each other, your windows are square.\"",
      "source": "Andersen Windows, How to measure windows, read 24 October 2026",
      "url": "https://www.andersenwindows.com/ideas-and-inspiration/blog/tips/how-to-measure-windows/",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-andersen-square"
    },
    {
      "label": "Andersen's measuring guide (maker), insert windows",
      "quote": "\"The window must also have a minimum jamb depth (space in between inside and outside stops) of 3 ¼ inches.\"",
      "source": "Andersen Windows, How to measure windows, read 24 October 2026",
      "url": "https://www.andersenwindows.com/ideas-and-inspiration/blog/tips/how-to-measure-windows/",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-andersen-insert-depth"
    },
    {
      "label": "Marvin's measuring guide for starting a quote (maker), height",
      "quote": "\"Round up to the nearest inch and record your measurement.\"",
      "source": "Marvin, How to Measure for Replacement Windows and Doors, read 24 October 2026",
      "url": "https://www.marvin.com/blog/how-to-measure-your-windows-and-doors-for-replacement",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-marvin-height-round"
    },
    {
      "label": "EPA (national)",
      "quote": "\"If your home was built before 1978, it may have lead-based paint; the older your home, the more likely it has lead-based paint.\"",
      "source": "EPA, Lead Renovation, Repair and Painting Program: Do-It-Yourselfers, read 24 October 2026",
      "url": "https://www.epa.gov/lead/renovation-repair-and-painting-program-do-it-yourselfers",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-epa-diy-1978"
    },
    {
      "label": "EPA (national)",
      "quote": "\"Approximately three-quarters of the homes in the United States built before 1978 still contain some lead-based paint.\"",
      "source": "EPA, Lead Renovation, Repair and Painting Program, read 24 October 2026",
      "url": "https://www.epa.gov/lead/renovation-repair-and-painting-program",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-epa-prog-share"
    },
    {
      "label": "Federal lead rule 40 CFR 745.83 (national), minor repair",
      "quote": "\"Minor repair and maintenance activities are activities, including minor heating, ventilation or air conditioning work, electrical work, and plumbing, that disrupt 6 square feet or less of painted surface per room for interior activities or 20 square feet or less of painted surface for exterior activities where none of the work practices prohibited or restricted by § 745.85(a)(3) are used and where the work does not involve window replacement or demolition of painted surface areas.\"",
      "source": "eCFR, 40 CFR Part 745 Subpart E (Residential Property Renovation), read 24 October 2026",
      "url": "https://www.ecfr.gov/current/title-40/chapter-I/subchapter-R/part-745/subpart-E",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-ecfr-minor-repair"
    },
    {
      "label": "Federal lead rule 40 CFR 745.84 (national), pamphlet timing",
      "quote": "\"No more than 60 days before beginning renovation activities in any residential dwelling unit of target housing, the firm performing the renovation must:\"",
      "source": "eCFR, 40 CFR Part 745 Subpart E (Residential Property Renovation), read 24 October 2026",
      "url": "https://www.ecfr.gov/current/title-40/chapter-I/subchapter-R/part-745/subpart-E",
      "read": "2026-10-24",
      "fact_id": "us-pain-v3window-ecfr-pamphlet"
    }
  ]
}