Privacy Policy & Cookie Disclosure

1. 100% Client-Side Calculation Privacy Architecture

At LayoutCalculator (https://layoutcalculator.com), we respect the privacy of contractors, homeowners, engineers, and woodworkers. All dimensional inputs, stair rise/run measurements, plywood sheet cut lists, room tile dimensions, board-and-batten wall lengths, and solar PV electrical array configurations entered into our interactive calculators are processed 100% locally inside your web browser using client-side JavaScript and Scalable Vector Graphics (SVG).

We do not transmit, log, or store your project dimensions, cut lists, or printable blueprints on any external database server. When you close your browser tab or print your 2D SVG shop blueprint, your custom dimensional inputs remain strictly on your local device.

2. Google AdSense & The DoubleClick DART Cookie Disclosure

To provide free access to our 2D CAD calculators and technical reference manuals, we use third-party advertising companies, including Google AdSense and programmatic advertising partners, to serve advertisements when you visit our website:

• Third-Party Advertising Cookies: Third-party vendors, including Google, use cookies (such as the Google DoubleClick DART cookie and related advertising identifiers) to serve ads based on a user's prior visits to LayoutCalculator or other websites on the internet.
• Personalized & Non-Personalized Ads: Google's use of advertising cookies enables it and its partners to serve ads to our visitors based on their visit to our site and/or other sites across the web, subject to your regional consent settings.
• How to Opt Out of Personalized Advertising: Users may opt out of personalized advertising at any time by visiting Google Ads Settings (adssettings.google.com). Alternatively, you may opt out of a third-party vendor's use of cookies for personalized advertising by visiting the Digital Advertising Alliance consumer choice portal at www.aboutads.info/choices or the Network Advertising Initiative opt-out page at optout.networkadvertising.org.
• How Google Uses Data: For complete details on how Google collects and processes data when you use partner sites, please review Google's official policy document: How Google uses information from sites or apps that use our services.

3. EEA, UK & Swiss Consent Mode v2 (GDPR & IAB TCF v2.2)

For visitors accessing LayoutCalculator from the European Economic Area (EEA), the United Kingdom (UK), or Switzerland, our platform implements Google Consent Mode v2 and complies with the IAB Europe Transparency and Consent Framework (TCF v2.2). By default, for visitors in regulated EEA/UK/CH jurisdictions, the consent signals ad_storage, ad_user_data, ad_personalization, and analytics_storage default to 'denied' until explicit, affirmative user choice is recorded.

You may review, grant, or withdraw your cookie consent preferences at any time by clicking the "Cookie & Consent Preferences" button located in the footer of every page on LayoutCalculator.

4. Independent Product & SKU References (Zero Outbound Retail Tracking)

LayoutCalculator provides independent Bill of Materials (BOM) quantity schedules, brand/SKU specification tables, and estimated street price comparisons strictly for informational and jobsite budgeting purposes. We do not embed third-party retail affiliate tracking cookies and do not share your browsing data with hardware retailers or building-supply manufacturers.

5. Server Log Files, Edge Caching & Web Vitals Telemetry

Like all standard web properties hosted on global content delivery networks (CDNs such as Cloudflare Pages), our edge servers automatically record standard non-identifying HTTP request metadata strictly for DDoS mitigation, broken-link diagnosis, and Core Web Vitals performance monitoring. These transient logs may include anonymized IP prefixes, browser user-agent strings, referring URLs, and requested page paths, and are automatically purged on a rolling schedule.

6. Your California (CCPA/CPRA) & US State Privacy Rights

Under the California Consumer Privacy Act (CCPA), the California Privacy Rights Act (CPRA), the Virginia Consumer Data Protection Act (VCDPA), and similar US state privacy statutes, residents have the right to:

• Know what categories of personal information or advertising identifiers are collected or shared.
• Opt out of the "sale" or "sharing" of cross-context behavioral advertising cookies via our footer Cookie & Consent Preferences control or via Global Privacy Control (GPC) browser signals.
• Request deletion of any personal correspondence submitted voluntarily via our support email desk.

7. Contact Regarding Privacy Rights

For any privacy-related requests, GDPR/CCPA data inquiries, or cookie policy questions, please contact our Data Protection Officer at engineering@layoutcalculator.com or visit our Contact Support Page.