Terms of Service

Welcome to CrewCalcs. These Terms of Service (the “Terms”) govern your access to and use of the websites, calculators, converters, charts, content, and other services offered at crewcalcs.com (together, the “Service”). The Service is operated by ATC Group (“ATC Group,” “CrewCalcs,” “we,” “us,” or “our”).

1. Agreement to these Terms

By accessing or using the Service, including by running any calculator or viewing any result, you agree to be bound by these Terms, by our Privacy Policy, our Cookie Policy, and our Disclaimer, each of which is incorporated into these Terms by reference. If you do not agree to these Terms, do not use the Service.

If you use the Service on behalf of a company or other organization, you represent that you have authority to bind that organization to these Terms, and “you” refers to both you and that organization.

2. Eligibility

The Service is a professional tool intended for use by adults in the U.S. building trades. You must be at least 18 years old and able to form a binding contract to use the Service. The Service is directed to users in the United States; we make no representation that the Service or its content is appropriate or available for use outside the United States, and you are responsible for compliance with local laws if you access it from elsewhere.

3. The Service

CrewCalcs provides automated calculation and sizing tools for HVAC, plumbing, electrical, structural, and related trades, built to U.S. codes and imperial units. The Service is currently provided free of charge and is supported by third-party display advertising (see Section 8). We may add, change, suspend, or discontinue any tool, feature, or part of the Service at any time, and we do not guarantee that any particular tool or result will remain available.

4. Your license to use the Service

Subject to these Terms, we grant you a limited, personal, revocable, non-exclusive, non-transferable, and non-sublicensable license to access and use the Service and its results for your own professional and business purposes, including for the projects of your clients or employer. You may not use the Service to build, train, or populate a competing product, dataset, or service. All rights not expressly granted are reserved. The Service does not require an account at this time; if we later offer accounts, additional terms may apply to them.

5. Estimates only; no professional advice

ATC Group is not a licensed engineering, architecture, or contracting firm, and no output is a sealed, stamped, or certified calculation. Results depend on the inputs you provide and on assumptions that may not fit your project. This Section 5 is qualified by, and should be read together with, our full Disclaimer, which forms part of these Terms.

6. Acceptable use

You agree not to, and not to permit or assist anyone else to:

• access, search, scrape, crawl, or extract the Service or its results by any automated means (including bots, spiders, or scripts), or systematically or in bulk copy, collect, or store results;
• use the Service or its results to create, train, or populate a competing calculator, product, dataset, or model;
• reverse engineer, decompile, or attempt to derive the source code, algorithms, or underlying data of the Service, except to the extent this restriction is prohibited by law;
• circumvent, disable, or interfere with rate limits, security features, or the delivery, display, or measurement of advertising, or misrepresent your identity or the origin of your requests;
• interfere with, disrupt, overburden, or attempt to gain unauthorized access to the Service or its supporting infrastructure; or
• use the Service for any unlawful, infringing, deceptive, or harmful purpose, or in violation of these Terms.

We may investigate and take any action we consider appropriate for a violation, including rate-limiting or blocking your access and pursuing available legal remedies.

7. Intellectual property

7.1 Our rights

The Service (including the CrewCalcs name and logo, the software, user interface, design, text, our written explanations and “shows-its-work” narratives, and the selection, arrangement, and presentation of our computed outputs) is owned by ATC Group or its licensors and is protected by U.S. and international intellectual-property laws. Except for the limited license in Section 4, we grant you no right, title, or interest in the Service.

7.2 Third-party codes, standards, and marks

CrewCalcs references published codes, standards, and methods but does not own them and does not claim any right in them. Codes and standards, including the NEC® / NFPA 70®, the International Codes® (ICC), ASHRAE® standards, ACCA® and its Manual J® / Manual D® / Manual N® procedures, and AISC®, ACI®, NDS®, and ASCE® standards, are the property of their respective owners. CrewCalcs computes from general engineering equations and references provisions by section number; it does not reproduce copyrighted code tables or text. References to third-party standards and marks are descriptive only and do not imply affiliation, sponsorship, endorsement, approval, or certification by any owner. See the no-affiliation statement in our Disclaimer.

7.3 Feedback

If you send us suggestions, corrections, or other feedback, you grant us a perpetual, irrevocable, worldwide, royalty-free license to use it without restriction or obligation to you.

8. Advertising and third-party links

The Service displays third-party advertising, currently through Google AdSense, and may contain links to third-party websites, products, or resources. We do not control, endorse, or assume responsibility for any third-party advertisement, content, product, or site, and your dealings with any advertiser or third party are solely between you and that party. How advertising and analytics cookies and identifiers are handled is described in our Privacy Policy and Cookie Policy.

9. Privacy

Our collection and use of information in connection with the Service is described in our Privacy Policy and Cookie Policy, which are incorporated into these Terms by reference. By using the Service, you acknowledge those policies.

10. Disclaimer of warranties

Without limiting the above, we do not warrant that any result is accurate, complete, current, or suitable for your project, or that the Service reflects the code edition or local amendments adopted by your AHJ. Any material obtained through the Service is used at your own risk. No advice or information, whether oral or written, obtained from us or through the Service creates any warranty not expressly stated in these Terms. Some jurisdictions do not allow the exclusion of certain warranties, so some of the above exclusions may not apply to you.

11. Assumption of risk and user responsibility

You acknowledge that construction and trade work carries an inherent risk of property damage, serious injury, and death. You agree that you are the responsible party for every design, purchasing, installation, and construction decision you make; that you will independently verify all inputs and results, select the correct code edition, confirm requirements with your AHJ, and obtain licensed professional review and any required permits; and that you knowingly assume all risk arising from your use of, or reliance on, any result. This Section 11 supplements the Disclaimer and survives termination.

12. Limitation of liability

Exceptions. Nothing in these Terms limits or excludes liability that cannot be limited or excluded under applicable law, including liability for our gross negligence, willful misconduct, or fraud, or for death or personal injury caused by our negligence. The limitations in this Section 12 apply to the maximum extent permitted by law and reflect an allocation of risk between you and us that is an essential basis of the bargain, given that the Service is provided free of charge and its results are labeled as estimates.

13. Indemnification

To the maximum extent permitted by law, you will defend, indemnify, and hold harmless ATC Group and its officers, members, employees, licensors, and suppliers from and against any third-party claims, demands, actions, liabilities, damages, losses, and expenses (including reasonable attorneys’ fees) arising out of or relating to: (a) your use of, or reliance on, the Service or any result; (b) any design, purchasing, installation, construction, or other professional decision you make; (c) your violation of these Terms or of any law; or (d) your infringement or violation of any third-party right. We may assume the exclusive defense and control of any matter subject to indemnification by you, in which case you will cooperate with us. This Section 13 does not require you to indemnify us for our own gross negligence, willful misconduct, or fraud.

14. Dispute resolution: binding arbitration & class-action waiver

14.1 Informal resolution first

Before starting an arbitration, you and we agree to try to resolve the dispute informally for at least 60 days. To begin, send a written Notice of Dispute to legal@crewcalcs.com (or, from us, to the address you have provided) that includes your name, contact information, a description of the dispute, and the relief you seek. You and we will negotiate in good faith. This informal-resolution requirement is a condition precedent to starting an arbitration, and any statute of limitations is tolled while it is pending.

14.2 Agreement to arbitrate

If the dispute is not resolved within 60 days, you and we agree that any dispute, claim, or controversy arising out of or relating to the Service or these Terms (a “Dispute”) will be resolved by binding arbitration on an individual basis, except as provided in Sections 14.5 and 14.6. The Federal Arbitration Act (9 U.S.C. §§ 1 et seq.) governs the interpretation and enforcement of this Section 14.

14.3 Arbitration provider and rules

The arbitration will be administered by the American Arbitration Association (“AAA”) under its Consumer Arbitration Rules and, where applicable, its Mass Arbitration Supplementary Rules, as modified by these Terms. The AAA’s rules and fee schedules are available at adr.org. The arbitrator may award the same individual relief a court could, and the arbitrator’s award may be entered as a judgment in any court of competent jurisdiction.

14.4 Class-action and jury-trial waiver

You and ATC Group agree that each may bring claims against the other only in an individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated, private attorney general, or representative proceeding. The arbitrator may not consolidate more than one person’s claims or preside over any form of a representative or class proceeding. You and we also waive any right to a jury trial.

14.5 Small-claims exception

Either party may bring an individual claim in a small-claims court for disputes within that court’s jurisdiction, in lieu of arbitration, so long as the matter proceeds only on an individual (non-class) basis.

14.6 Delegation

The arbitrator has exclusive authority to resolve any Dispute about the interpretation, applicability, enforceability, or formation of this arbitration agreement, including whether a claim is subject to arbitration, except that a court has authority to decide the enforceability of the class-action waiver in Section 14.4 and any dispute about which of two conflicting agreements governs arbitrability.

14.7 Your 30-day right to opt out

You may opt out of this arbitration agreement within 30 days after you first accept these Terms by sending a written notice to legal@crewcalcs.com that states your name and that you are opting out of the arbitration agreement in the CrewCalcs Terms of Service. Opting out will not affect any other part of these Terms and will not affect any prior or other arbitration agreement between you and us.

14.8 Coordinated or mass filings

If 25 or more similar Notices of Dispute or arbitration demands are asserted against us by or with the assistance of the same or coordinated counsel, the AAA Mass Arbitration Supplementary Rules will apply, and the parties will cooperate in good faith with any batching, bellwether, or staged-selection process the AAA administers. Statutes of limitations for all such claims are tolled while any batching or bellwether process is pending, so that no claim is prejudiced by the coordination process.

14.9 Severability of this Section (poison pill)

If the class-action waiver in Section 14.4 is found unenforceable as to a particular claim or request for relief, then that claim or request will be severed and brought in a court of competent jurisdiction (consistent with Section 15), and the remaining claims will proceed in arbitration. Except as stated in this Section 14.9, if any part of this Section 14 is found unenforceable, the remainder will remain in effect.

14.10 Changes and survival

If we make a material change to this Section 14, you may reject the change by sending us notice within 30 days, in which case the most recent pre-change version applies. This Section 14 survives termination of your use of the Service.

15. Governing law and venue

These Terms and any Dispute are governed by the laws of the State of Delaware, excluding its conflict-of-laws rules, and, for the arbitration agreement in Section 14, by the Federal Arbitration Act. Subject to Section 14, any Dispute that is not required to be arbitrated (including a claim for which arbitration has been opted out of or found not to apply) will be brought exclusively in the state or federal courts located in Delaware, and you and we consent to the personal jurisdiction of, and venue in, those courts. Nothing in these Terms deprives you of the protection of mandatory consumer protections of your home jurisdiction that cannot be waived by agreement.

16. Changes to the Service

We may modify, suspend, or discontinue all or any part of the Service (including any individual tool, result format, or feature) at any time, with or without notice. We are not liable to you or to any third party for any modification, suspension, or discontinuation of the Service.

17. Changes to these Terms

We may update these Terms from time to time. When we do, we will revise the “Last updated” date at the top of this page and, for material changes, provide additional conspicuous notice (for example, an on-site notice). Changes are effective when posted, and your continued use of the Service after the effective date constitutes acceptance. Changes to the arbitration agreement are governed by Section 14.10. If you do not agree to a change, you must stop using the Service.

18. Termination and suspension

You may stop using the Service at any time. We may suspend or terminate your access to the Service at any time, with or without notice, if we reasonably believe you have violated these Terms or to protect the Service, other users, or us. The following provisions survive termination: Sections 5 (Estimates only), 7 (Intellectual property), 10 (Warranties), 11 (Assumption of risk), 12 (Limitation of liability), 13 (Indemnification), 14 (Arbitration), 15 (Governing law), and 21 (General terms), together with any other provision that by its nature should survive.

19. Future paid features (terms of sale)

The Service is currently provided free of charge. We may in the future introduce paid features, subscriptions, or other purchases. Any such purchase will be governed by separate terms of sale (including pricing, billing, refund, and, for any subscription, auto-renewal and cancellation terms) that we will present to you and that you must affirmatively accept at the time of purchase. These Terms do not authorize any charge to you, and we will not charge you for the Service unless and until you agree to those separate terms.

20. Copyright complaints (DMCA)

We respect intellectual-property rights. The Service does not currently host user-submitted content. If we later enable features that allow users to submit content, and you believe material on the Service infringes your copyright, you may send a notice under the Digital Millennium Copyright Act to our designated agent at legal@crewcalcs.com, including the information required by 17 U.S.C. § 512(c)(3). We will respond to valid notices and maintain a policy of terminating, in appropriate circumstances, the access of repeat infringers.

21. General terms

21.1 Severability and savings

If any provision of these Terms is held invalid or unenforceable, that provision will be enforced to the maximum extent permissible and modified to the minimum extent necessary, and the remaining provisions will remain in full force and effect. In particular, any limitation of liability or cap that is held unenforceable in part will be reduced to the greatest amount enforceable under applicable law.

21.2 Entire agreement

These Terms, together with the Privacy Policy, Cookie Policy, and Disclaimer, are the entire agreement between you and us regarding the Service and supersede all prior understandings on that subject.

21.3 No waiver

Our failure to enforce any provision is not a waiver of our right to do so later. A waiver is effective only if in writing and signed by us.

21.4 Assignment

You may not assign or transfer these Terms without our prior written consent. We may assign these Terms, in whole or in part, including in connection with a merger, acquisition, reorganization, or sale of assets. These Terms bind and benefit the parties and their permitted successors and assigns.

21.5 Force majeure

We are not liable for any failure or delay in performance caused by events beyond our reasonable control, including acts of God, natural disasters, outages, failures of third-party services or infrastructure, labor disputes, or governmental actions.

21.6 Notices

We may provide notices to you by posting on the Service or by other reasonable means. You may send notices to us by email at legal@crewcalcs.com.

21.7 Headings

Headings are for convenience only and do not affect interpretation.

22. Contact

Questions about these Terms? Contact legal@crewcalcs.com. CrewCalcs is a service of ATC Group, an online-only business we run without a public office.