Security and data handling
A builder trusted you with those drawings. Here is how we keep that trust.
Plan sets are a builder's confidential work. Your catalog and prices are your competitive position. This page says plainly who can see what, where it lives, and what we will never do with it.
The short version
Six commitments.
Yard isolation
Encrypted in transit and at rest
No training without opt-in
Limited staff access
You can delete it
Payments by Stripe
The longer version
Where your data goes, stage by stage.
Uploading a plan set
When you upload PDFs, your browser sends them straight to private file storage over an encrypted connection, using a short-lived upload link issued for that one upload. The files are not public and cannot be fetched by address: every download is authorized against your yard's session first.
Reading the drawings
Reading is the one step that uses AI. Rendered sheets are sent to our AI provider, Anthropic, through its commercial API, to be read into a building model. We send the sheets, and nothing from your catalog, your prices or your customer records. We do not permit your drawings to be used for training models, by us or by a provider, unless you opt in.
Computing the takeoff
The takeoff is computed by LumberSet's own rules engine. It is ordinary arithmetic running on our servers and in your browser. No third party is involved, and your estimating standards never leave your yard's workspace.
Review and support
LumberSet staff work in a separate staff panel with their own sign-in. Reviewers see the plan sets and takeoffs in the review queue. Support staff see a yard's workspace when helping that yard. Corrections a reviewer makes are recorded with a reason, so there is a trail of who changed what.
Your catalog and prices
Your catalog, prices and margin are used for exactly one thing: pricing your own quotes. They are not pooled, benchmarked, or shown to other yards, and they are not part of what reviewers need to see to check a takeoff.
Your customers
The builders and contractors you add are your customers, not ours. We email them only when you send them a quote, and we do not market to them.
Retention and deletion
We keep your data for as long as your yard's workspace is open, because old quotes are part of how a yard works. Deleting a project removes its plan sets, sheets, takeoffs and quotes from live systems. Backups age out on a rolling schedule after that. When you close your workspace, we delete the yard's data and keep only the billing records we are legally required to retain.
Accounts and access inside your yard
Each person signs in as themselves, as an owner, a manager or an estimator, and sees what that role needs. Sessions are held in secure, host-scoped cookies. When someone leaves the yard, an owner removes them and their access ends.
Service providers
The companies that process data for us.
We use a short list of providers, each for one purpose. None of them may use your data for their own ends.
| Provider | Purpose | What it processes |
|---|---|---|
| StripeCard payments | Card payments | Payment details and billing contact. Card numbers go directly to Stripe and never reach LumberSet's servers. |
| AnthropicAI reading of sheets | AI reading of sheets | Rendered sheets from the plan sets you upload, sent through Anthropic's commercial API for reading. |
| CloudflareFile storage | File storage | The PDF plan sets you upload, the rendered sheets and the quote PDFs, held in private object storage. |
| ResendTransactional email | Transactional email | Email addresses and message content for sign-in, invitations and the quotes you send. |
Straight talk
Reporting a problem, and what we do not claim.
Found a security problem?
What we do not claim
Quote the next plan set with LumberSet.
Create your yard's workspace, set your standards and catalog, and upload the drawings. You pay when a takeoff is released to you, and not before.
$200 per quote. No monthly fee. No seat licenses. No contract.