Terms of Service

This is a good-faith, plain-English draft written to accurately describe how Trammel works. It is not legal advice and has not yet been reviewed by counsel. Sections that require a real legal fact — the operating entity, the governing jurisdiction, and a legal contact — are marked with bracketed placeholders and will be completed before these Terms are treated as a final, binding agreement.

1. What Trammel is

Trammel is a floor-plan editor that runs in your web browser. It is built on a real 2D geometric constraint solver, so the dimensions you enter are live inputs: pin a wall at a measurement and it stays at that measurement while the rest of the plan re-solves around it. You draw walls, doors, windows, rooms, and dimensions to scale, and you can export the result as an image, a vector file, or a formatted sheet. Trammel is offline-first — your work is saved to your own device first — with optional cloud sync when you sign in. These Terms cover your use of the Trammel web app and the related services around it (checkout, account sync, and support). By using Trammel, you agree to these Terms.

2. Eligibility and accounts

You may draw a plan without an account — Trammel stores your work in your own browser first (see our Privacy Policyfor how that works). Creating an account, which we manage through Supabase, lets you sync projects across devices and unlocks any plan you purchase. You can sign in with Google or with a one-time email "magic link"; we do not ask you to set a password.

You must be old enough to form a binding contract in your jurisdiction (and at least the minimum age required there) to create an account. You are responsible for keeping access to your Google account or email inbox secure, and for the activity that happens under your Trammel account. Please give us accurate account information and let us know if you believe your account has been used without your permission.

3. Your projects and intellectual property

The plans you create are yours. We do not claim ownership of your drawings, dimensions, or title-block content, and you can export them and take them with you at any time, on any plan tier, including Free. We claim no license to your project content beyond what we need to operate the service you ask for — for example, storing and syncing a project across your own devices when you enable sync.

Trammel itself — the app, the solver integration, our branding, and our code — remains ours (and our licensors'). We grant you a limited, personal, revocable license to use it under these Terms; we do not transfer any of our own intellectual property to you.

Free tier. Standard-resolution PNG exports on the Free plan carry a Trammel watermark, and the Free plan is intended for personal, non-commercial use. Plans you have already drawn stay readable and exportable — with the watermark — for as long as you keep them.

Pro and Project Pass. A paid plan (a Pro subscription or a Project Pass) grants you a commercial-use license for the plans you create — listing plans, client work, and submission-quality export sets — removes the Trammel watermark, and lets you place your own logo and branding on your exports. That commercial license covers the plans you produced while your paid access was active; it does not extend our own trademarks or software to you. Nothing here overrides the disclaimers in Sections 8 and 9.

4. Acceptable use

• Don't use Trammel for any unlawful purpose, or to produce or distribute plans you know are unsafe or intentionally deceptive.
• Don't reverse-engineer, decompile, or attempt to extract the source of the app or its solver, except where that restriction is prohibited by law.
• Don't scrape, crawl, or use automated means to pull data from the service, and don't attack, overload, or otherwise degrade it for other users.
• Don't attempt to circumvent plan limits, export watermarks, entitlement checks, or billing.
• Don't upload or use content you don't have the right to use, and don't resell or redistribute the service itself.

If you violate these rules we may suspend or terminate your access (see Section 11). Where we reasonably can, we'll give you a chance to export your projects first — except in cases of abuse, fraud, or a legal requirement.

5. Plans, billing, and cancellation

Trammel offers a free plan and two paid options, billed through Stripe. We do not receive or store your full card number; Stripe processes payment directly.

• Free — $0. The full editor, including the constraint solver, up to three active projects, and watermarked standard-resolution PNG export.
• Pro — $15/month or $120/year. A subscription: unlimited projects; scaled PDF, SVG, DXF, and hi-res PNG export; no watermark; the commercial license and branding described in Section 3; multi-device sync; and priority support.
• Project Pass — $35 one-time. Three months of Pro access, billed once. It is non-renewing: it does not auto-charge and it simply expires at the end of the three months.

Auto-renewal (Pro subscription only). A Pro subscription renews automatically at the end of each billing period — monthly or annually, matching what you chose — at the then-current price, until you cancel. The Project Pass never auto-renews.

Cancellation. You can cancel a Pro subscription at any time from your account. Cancelling stops future renewals; you keep Pro features through the end of the period you already paid for, after which the account returns to the Free plan. Your projects stay where they are — they are not deleted when you downgrade, though creating new projects is again subject to the Free active- project limit.

Refunds.Except where required by law, payments are non-refundable and we do not prorate partial billing periods. If something goes wrong with a charge, contact us and we'll try to make it right.

No credits, no per-export fees. This is a real product promise: Trammel has no credit system and charges no per- export or per-project fees, ever. We never charge you for actions inside work you have already done. A paid plan unlocks output and scale — not individual clicks.

6. Your data, local-first and offline

Trammel is offline-first by design. Every plan is written to your own device first, in your browser's local storage, and most editing keeps working even when our servers are unavailable. If you sign in and enable sync, we store a copy of your project data so it's available across your devices. Because your device holds the primary copy, keeping your own backups of important work is your responsibility — clearing your browser storage or losing a device can remove local data we cannot recover. How we handle account and synced data is described in the Privacy Policy.

7. Owner-builder disclaimer

Trammel helps you draw clear, to-scale plans — it does not make you a licensed design professional, and it doesn't guarantee permit approval. Whether an owner-builder may submit their own plans, and what those plans must show, is decided by your local building department. Check with them before you build.

This applies to every export Trammel produces — PNG, SVG, PDF, or DXF — regardless of your plan tier. Nothing in these Terms, on the pricing page, or anywhere else in the product is a promise that a permitting authority will accept a plan you submit, or that you are legally permitted to submit your own plans instead of a licensed professional's. That determination is always your local building department's to make.

8. Measurement-accuracy disclaimer

Trammel is a precision tool: the constraint solver holds the exact dimensions you enter. But the plans, dimensions, areas, and site boundaries in Trammel are created and controlled by you, from the inputs you provide, and are provided "as is." They reflect what you drew and measured — not an independent verification of your real-world space. You are responsible for confirming every real- world measurement.

A Trammel plan is not a substitute for a professional land survey, an engineered or architect-stamped drawing, or a permit certification, and it should not be relied on as one. Property lines and site features drawn from public GIS records are planning-grade at best. Before you build, order materials, or submit anything, verify dimensions, setbacks, and requirements against the real space and with the appropriate professional or authority.

9. Disclaimer of warranties

Trammel is provided "as is" and "as available," without warranties of any kind, whether express or implied, including any implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the service will be uninterrupted, error-free, or secure, or that cloud sync, checkout, or any other networked feature will always be available. Some jurisdictions don't allow certain warranty exclusions, so parts of this section may not apply to you.

10. Limitation of liability

To the maximum extent permitted by law, Trammel and its operators will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for lost profits, lost data, or the cost of substitute services, arising out of or related to your use of the product — including damages related to construction or purchasing decisions, rejected permit applications, or the accuracy of any measurement. To the extent any liability is not excluded, our total liability for any claim relating to the service is limited to the greater of the amount you paid us for it in the twelve months before the claim, or fifty U.S. dollars. Nothing in these Terms limits liability that the law does not allow to be limited.

11. Termination

You can stop using Trammel at any time, cancel a subscription from your account, and delete your account and synced data as described in the Privacy Policy. We may suspend or terminate your access if you materially breach these Terms, misuse the service, or where we're required to by law; where practical and appropriate, we'll give notice and a chance to export your work first. The sections that by their nature should survive — including intellectual property, disclaimers, limitation of liability, and governing law — survive termination.

12. Changes to these Terms

We may update these Terms as the product changes. We'll post the new version here with an updated date, and we'll flag material changes in-app where practical before they take effect. Continuing to use Trammel after a change takes effect means you accept the updated Terms; if you don't agree, stop using the service and, if you wish, cancel and delete your account.

13. Governing law

These Terms, and any dispute arising from them or from your use of Trammel, are governed by the laws of [Governing jurisdiction], without regard to its conflict-of-laws rules, and the courts located there will have jurisdiction — except where mandatory local consumer-protection law gives you rights or a forum that cannot be waived. The service is operated by [Company legal entity].

14. Contact

Questions about these Terms? Reach out through the contact options in your account settings, at [legal contact email], or via the address listed on our homepage. See also our Privacy Policy.

This is a good-faith draft describing how Trammel actually works, not attorney-reviewed legal advice. Have it reviewed by a lawyer licensed in the governing jurisdiction, and complete the bracketed placeholders, before relying on it as a binding agreement.