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CraftedCalcs

Terms of Use

Last updated: 2026-05-24

Effective immediately upon posting for new users. For existing users, material changes (as defined in §14) take effect 30 days after the Last updated date.

1. Acceptance and eligibility

By accessing CraftedCalcs, you agree to these Terms of Use. If you do not agree, please do not use the site.

US users: You must be at least 13 years old to use CraftedCalcs. If you are under 18, you may only use the site with the involvement and consent of a parent or legal guardian.

European Union / United Kingdom users: If you are accessing CraftedCalcs from the European Union or the United Kingdom, you must be at least 16 years old, as required by the General Data Protection Regulation (GDPR) and UK GDPR. Where a specific EU member state has lowered the digital-consent age below 16, that lower age applies in that jurisdiction.

By using the site, you represent that you meet these eligibility requirements.

2. Informational content only — research-sourced, not personal use

CraftedCalcs provides construction material and project planning calculators — including stair, concrete, drywall, roofing, flooring, and related calculators — together with explanatory guides, glossaries, and reference material, for informational and educational purposes only.

All calculator outputs and product recommendations on CraftedCalcs are derived from research of authoritative sources — industry-standard codes (IRC, ACI, ICC, IECC, DOE, ASTM, NFPA), published manufacturer technical data sheets, and trade associations (NWFA, RFCI, ICPI, GA, CRI, NALFA) — not from personal use or installer testing. CraftedCalcs is a research-driven informational tool, not an installer, contractor, or product reseller.

Outputs are estimates. They are:

For any structural, load-bearing, electrical, plumbing, gas, or code-critical work, consult a licensed professional and your local building authority. See our full disclaimer.

3. Cost and quantity estimates

Where our calculators produce material quantities, build lists, or cost estimates, those figures are approximations based on standard formulas, typical residential practice, and average US retail assumptions. Actual quantities vary by cut waste, site conditions, supplier availability, material grade, and local market conditions. Do not use our build lists as a final bill of materials, or our quantities as a purchase order, without verifying against your actual cut list and obtaining current quotes from local suppliers. CraftedCalcs is not responsible for over-purchase, under-purchase, or pricing differences between estimate and actual.

4. Building code references

CraftedCalcs cites the International Residential Code (IRC), American Concrete Institute (ACI), International Code Council (ICC) provisions, and other industry standards for general guidance only. These standards are owned by their respective publishers; we reproduce only the minimum text needed for educational reference. Building codes vary by jurisdiction, are revised on multi-year cycles, and are frequently amended locally. Always confirm the current edition in force in your jurisdiction with your local building department before using any CraftedCalcs output for permitted construction.

5. Limitation of liability

To the maximum extent permitted by law, Madabusi Ventures LLC (the operator of CraftedCalcs) disclaims all warranties, express or implied, regarding the accuracy, completeness, or fitness for purpose of any content or calculator on this site, including warranties of merchantability, fitness for a particular purpose, title, and non-infringement.

Madabusi Ventures LLC shall not be liable for any direct, indirect, incidental, consequential, punitive, or special damages arising from your use of or reliance on CraftedCalcs, even if advised of the possibility of such damages. This includes but is not limited to lost profits, lost data, business interruption, project delays, material over-purchase or under-purchase, code-inspection failures, structural failures, personal injury, or property damage.

Aggregate liability cap. Notwithstanding anything to the contrary in these Terms, the total aggregate liability of Madabusi Ventures LLC for all claims arising from or relating to these Terms or your use of CraftedCalcs shall not exceed the greater of (a) one hundred US dollars ($100), or (b) the total fees you paid to Madabusi Ventures LLC for use of CraftedCalcs in the twelve (12) months immediately preceding the event giving rise to the claim. For the avoidance of doubt: CraftedCalcs is currently provided free of charge, so (b) is zero, and (a) controls.

Carve-outs from the liability cap. The aggregate liability cap above does NOT apply to: (i) gross negligence; (ii) willful misconduct; (iii) personal injury or death caused by our gross negligence or willful misconduct; (iv) any liability that cannot lawfully be excluded or limited under applicable consumer-protection law in your jurisdiction. For any such excepted claims, our liability is limited only by what applicable law requires.

Your sole and exclusive remedy for dissatisfaction with the site is to stop using it.

Some jurisdictions do not allow certain limitations of liability or exclusion of incidental or consequential damages. In those jurisdictions, the above limitations apply to the maximum extent permitted by applicable law.

6. Intellectual property

All original content on CraftedCalcs — calculator code, page copy, formulas as presented, branding — is owned by Madabusi Ventures LLC. You may use calculators for personal or commercial project planning. You may not scrape, republish, or redistribute significant portions of the site without written permission.

Industry standards cited (IRC, ACI, ICC) belong to their respective copyright holders. Trademarks and brand names are the property of their owners.

Calculation outputs you generate using our tools (dimensions, quantities, build lists for your specific project) are yours to use freely in your own projects, including commercial work. You may not resell access to our calculators or republish our calculator interface as a paid or branded service.

7. Acceptable use

You agree not to:

We may, at our discretion and without notice, restrict or terminate access for any user we believe has violated this section.

8. Advertising and affiliate links

CraftedCalcs is supported by display advertising and, on some pages, affiliate links. Product recommendations are derived from research of authoritative sources (industry standards + manufacturer technical data sheets), not from personal use or installer testing. Clicking ads or affiliate links does not cost you anything extra; we may earn a commission when you purchase. See our Ad Disclosure for details.

9. Third-party links

CraftedCalcs links to third-party websites including Home Depot and other retailers. We do not control these sites, do not endorse all of their content, and are not responsible for their pricing, product availability, fulfillment, returns, warranties, customer service, privacy practices, or terms of use. Your interactions with third-party sites are governed solely by those sites' own terms.

10. Indemnification

You agree to indemnify and hold harmless Madabusi Ventures LLC, its officers, employees, and contractors from any claims, damages, losses, or expenses (including reasonable attorneys' fees) arising from: (a) your violation of these Terms; (b) your violation of any third-party rights, including intellectual-property rights; or (c) your use of the site for any unlawful purpose. This indemnification does not extend to claims arising from your good-faith reliance on calculator outputs or guide content; for those claims, the limitations of liability in §5 govern.

11. Feedback and submissions

If you submit feedback, suggestions, bug reports, or other content through our feedback form or any other channel, you grant Madabusi Ventures LLC a perpetual, worldwide, royalty-free license to use, modify, and incorporate that content into CraftedCalcs without obligation or attribution. Do not submit confidential or proprietary information you don't want shared.

Moderation rights. Madabusi Ventures LLC reserves the right, at its sole discretion and without notice, to review, edit, remove, refuse to post, or otherwise moderate any feedback or submitted content for any reason, including but not limited to content that is unlawful, harassing, defamatory, infringing, or off-topic. We are not obligated to maintain or display any feedback received and may delete it at any time.

12. Informal dispute resolution required first

Before filing any formal claim or arbitration demand against Madabusi Ventures LLC arising from or relating to these Terms or your use of CraftedCalcs, you agree to first try to resolve the dispute informally for at least thirty (30) days. To start informal resolution, send a written notice describing the dispute, the relief you seek, and your contact information to [email protected]. We will review your notice in good faith and attempt to reach a resolution within thirty (30) days of receipt. The thirty-day period is a precondition to filing any arbitration demand or court action.

13. Binding arbitration and class-action waiver

Please read this section carefully — it affects your legal rights and limits the way you can resolve disputes with Madabusi Ventures LLC.

Except as provided below, you and Madabusi Ventures LLC agree that any dispute, claim, or controversy arising from or relating to these Terms or your use of CraftedCalcs that is not resolved through informal dispute resolution (§12) shall be resolved exclusively through binding individual arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules (or, by mutual written agreement, by JAMS under its Streamlined Arbitration Rules). The arbitrator's award shall be final and binding. Judgment on the award may be entered in any court of competent jurisdiction.

Class-action waiver. You and Madabusi Ventures LLC agree that any arbitration or other dispute resolution shall be conducted on an individual basis only, and not as a class, collective, consolidated, mass, or representative action. The arbitrator may not consolidate the claims of multiple parties or preside over any form of representative or class proceeding.

Severability of class-action waiver — preserve individual arbitration. If a court of competent jurisdiction determines that the class-action waiver above is unenforceable as to a particular claim, then only that claim's class, collective, consolidated, mass, or representative portion shall be severed and may proceed in court. The remainder of the arbitration agreement — including individual arbitration of all other claims and of the individual portion of the severed claim — shall remain in full force and effect. The arbitration agreement as a whole shall not fail because the class-action waiver is partially unenforceable.

Exceptions to arbitration. Notwithstanding the above, either party may bring an individual action in small-claims court for any dispute within that court's jurisdiction, and either party may seek injunctive or other equitable relief in court for actual or threatened infringement, misappropriation, or violation of intellectual property rights.

Opt-out. You may opt out of this binding arbitration agreement by sending written notice to [email protected] with the subject line "Arbitration opt-out" within thirty (30) days of first accepting these Terms. Your notice must include your full name, email address, and a clear statement that you are opting out of the arbitration agreement. Opting out does not affect any other provision of these Terms.

14. Governing law and venue

Madabusi Ventures LLC is a limited-liability company organized under the laws of the State of Washington, USA. These Terms are governed by the laws of the State of Washington, without regard to conflict of law principles. For any dispute not subject to arbitration under §13 (including small-claims and IP injunctive relief), the dispute shall be resolved exclusively in the state or federal courts located in King County, Washington, and you consent to the personal jurisdiction of those courts.

15. Force majeure

Madabusi Ventures LLC shall not be liable for any failure or delay in providing CraftedCalcs (including any interruption, unavailability, data loss, or degraded performance) caused by events beyond our reasonable control, including but not limited to: acts of God, natural disasters, fire, flood, earthquake, pandemic, war, terrorism, civil unrest, government action, labor disputes, internet or telecommunications outages, hosting-provider failures, third-party service failures (including but not limited to Cloudflare, Google AdSense, or any affiliate network), or any other force majeure event. The site is provided "as is" and "as available," and we do not warrant uptime, continuous availability, or specific performance.

16. No agency or joint venture

No agency, partnership, joint venture, employment, fiduciary, or franchise relationship is created between you and Madabusi Ventures LLC by your use of CraftedCalcs or your acceptance of these Terms. Neither party has authority to bind the other to any obligation. You may not represent yourself as an agent, partner, or representative of CraftedCalcs or Madabusi Ventures LLC.

17. DMCA takedown procedure

CraftedCalcs respects intellectual-property rights. If you believe content on CraftedCalcs infringes a copyright you own or control, you may submit a notification under the Digital Millennium Copyright Act (17 U.S.C. §512) by sending a written notice to [email protected] containing:

Madabusi Ventures LLC will respond to valid DMCA notifications by reviewing the claim and, where appropriate, removing or disabling access to the allegedly infringing material. We may also forward the notification to the alleged infringer. Counter-notifications and repeat-infringer policies follow the standard DMCA framework.

18. Privacy

Your privacy is governed by our Privacy Policy, which is incorporated into these Terms by reference. By using CraftedCalcs, you also agree to the data practices described in the Privacy Policy. CraftedCalcs does not require user accounts, does not process payments, and does not collect personal information beyond standard web analytics (visitor counts, browser type, referrer) and any information you voluntarily submit via the feedback form.

19. Changes to these Terms

We may update these Terms at any time. The "Last updated" date at the top reflects the most recent revision. Changes that meaningfully alter your rights or obligations (limitation of liability, arbitration, governing law, acceptable use) will be announced via a site-wide banner for thirty (30) days following the change AND reflected in the "Last updated" timestamp on every page of the site. Because CraftedCalcs does not require user accounts, we cannot send change notifications by email; the on-site banner and "Last updated" timestamp are the methods of notice. Continued use after the effective date constitutes acceptance.

20. Severability and entire agreement

If any provision of these Terms is found unenforceable, the remaining provisions remain in full effect. These Terms, together with our Privacy Policy, Ad Disclosure, AI Disclosure, and full Disclaimer, constitute the entire agreement between you and Madabusi Ventures LLC regarding your use of CraftedCalcs.

21. Contact

Legal notices (arbitration opt-out, DMCA notifications, dispute notices under §12): send to [email protected].

Non-legal questions about these Terms or general inquiries: use our feedback form and select "Legal or terms question" as the type.