SwiftSchemaGenerate
    Schema stack

    Construction Project Bid Stack

    Construction project bid pages with CreativeWork context, offers, FAQs, and breadcrumbs.

    Open generatorValidate in Rich Results Test
    Included schema
    Creative Work
    Offer
    Frequently Asked Questions
    Breadcrumb
    Fit

    When to use this stack

    • Public project bid invitations and RFPs
    • Contractor or subcontractor bid request pages
    • Project pages with bid deadlines and submission rules
    Composition

    What is included

    Data contract

    Properties across the bundle

    Nested properties keep their parent path, such as offers.priceCurrency. Only publish values that match visible page content.

    Required properties

    • availability
    • description
    • itemListElement[].name
    • mainEntity[].@type=Question
    • mainEntity[].acceptedAnswer.text
    • name
    • price
    • priceCurrency
    • url

    Recommended properties

    • category
    • creator.name
    • datePublished
    • description
    • inLanguage
    • itemListElement[].item
    • mainEntity[].acceptedAnswer.text
    • mainEntity[].author.name
    • mainEntity[].name
    • priceValidUntil
    Copy-ready example

    Combined JSON-LD

    Paste this as one script tag, then replace every example value with data from the live page.

    Validate
    [
  {
    "@context": "https://schema.org",
    "@type": "CreativeWork",
    "@id": "https://www.example.com/projects/riverside-bridge/bid#document",
    "name": "Riverside Bridge Renovation Bid Package",
    "description": "Bid documents and scope for the Riverside Bridge renovation project.",
    "url": "https://www.example.com/projects/riverside-bridge/bid",
    "creator": { "@type": "Organization", "name": "Northwind City Public Works" },
    "datePublished": "2025-05-20",
    "inLanguage": "en"
  },
  {
    "@context": "https://schema.org",
    "@type": "Offer",
    "@id": "https://www.example.com/projects/riverside-bridge/bid#submission-fee",
    "name": "Bid Submission Fee",
    "description": "Non-refundable fee to submit a qualified bid package.",
    "price": "150.00",
    "priceCurrency": "USD",
    "availability": "https://schema.org/InStock",
    "url": "https://www.example.com/projects/riverside-bridge/bid#fees",
    "priceValidUntil": "2025-06-15"
  },
  {
    "@context": "https://schema.org",
    "@type": "FAQPage",
    "mainEntity": [
      {
        "@type": "Question",
        "name": "Who is eligible to bid?",
        "acceptedAnswer": {
          "@type": "Answer",
          "text": "Licensed general contractors with valid bonding and insurance documentation may submit bids."
        }
      },
      {
        "@type": "Question",
        "name": "When is the bid deadline?",
        "acceptedAnswer": {
          "@type": "Answer",
          "text": "Bids must be received by 5:00 PM on June 15, 2025."
        }
      },
      {
        "@type": "Question",
        "name": "Is a site visit required?",
        "acceptedAnswer": {
          "@type": "Answer",
          "text": "Yes. A mandatory site walk is scheduled for June 1, 2025."
        }
      }
    ]
  },
  {
    "@context": "https://schema.org",
    "@type": "BreadcrumbList",
    "itemListElement": [
      { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.example.com" },
      { "@type": "ListItem", "position": 2, "name": "Projects", "item": "https://www.example.com/projects" },
      { "@type": "ListItem", "position": 3, "name": "Riverside Bridge", "item": "https://www.example.com/projects/riverside-bridge" },
      { "@type": "ListItem", "position": 4, "name": "Bid Package", "item": "https://www.example.com/projects/riverside-bridge/bid" }
    ]
  }
]
    Workflow

    Implement and verify

    1. 01

      Start with the live page

      Confirm titles, prices, availability, policies, and visible FAQ content before generating markup.

    2. 02

      Add one JSON-LD script

      Use the combined example as a template in the document head or before the closing body tag.

    3. 03

      Complete regional details

      Fill shipping destinations and timing for every region the page actually serves.

    4. 04

      Link the return policy

      Use a stable MerchantReturnPolicy URL and keep its terms synchronized with the page.

    5. 05

      Match visible answers

      Add only FAQs that users can read on the same page, with identical answers.

    6. 06

      Validate after changes

      Run Rich Results Test after implementation and whenever price, availability, or policy data changes.

    Quality check

    Common errors and fixes

    • Missing currency or availability

      Use ISO currency codes and complete schema.org availability URLs in Offer data.

    • Incomplete shipping details

      Include shippingDestination.addressCountry and deliveryTime.transitTime with units.

    • Return policy is not connected

      Reference MerchantReturnPolicy from the Offer and provide a stable public policy URL.

    • FAQ answers differ from the page

      Keep structured FAQ answers identical to visible answers.

    Questions

    Stack FAQs

    Should I include addenda?

    If addenda are listed on the page, update the CreativeWork description and include dates in the FAQ.

    How do I show multiple bid packages?

    Use separate CreativeWork entries or separate stack pages per project to avoid mixing scopes.

    Primary sources

    References