What does the yard detention audit need from me?

A CSV with three columns: a trailer or container id, time_in, and time_out. One day of gate records is enough. Timestamps like 2026-08-25 15:17 or 08/25/2026 3:17 PM both work.

Is my gate log uploaded anywhere?

No. The file is parsed and the report is drawn by JavaScript on this page. Nothing leaves your browser unless you choose to email yourself the summary figures.

Why does the report show hours instead of dollars?

Detention rates differ by contract. Hours beyond free time is the fact both a yard and a carrier can agree on, so the audit reports time only.

Free tool for yards

Free yard detention audit.

Paste or upload one day of gate records and get the 1-page report we build for yards: dwell distribution, share of trucks past free time, hours over free time, and your longest stays, against sourced benchmarks.

Your file never leaves your browser. It is processed on this page only. There is no upload, no account, and no email required to see the report.

Gate records (CSV). Columns: trailer or container id, time_in, time_out

Or upload a .csv file

Free time (hours)

Yard or company name (optional, printed on the report)

Download sample CSV

Accepted timestamps: 2026-08-25 15:17, 2026-08-25T15:17:00, 08/25/2026 15:17, 08/25/26 15:17, 08/25/2026 3:17 PM. A blank time_out means the trailer is still in the yard and is left out of the math. Exporting from our free gate log template works as-is.

Keep in touch about your yard numbers

Optional. To keep this report, use Print / save as PDF above. If you leave your email, we save only the summary figures shown above (row count, share over free time, free hours, hours over), never your file, and follow up by email. A weekly version needs a live gate feed, which is what the app provides.

How the audit is calculated

Turnaround is gate out minus gate in for each unit. Any turnaround longer than your free time counts as over, and the hours beyond free time are summed and divided by the number of operating days in your file. The report shows time only. Detention rates differ by contract, so hours over free time is the figure both sides can agree on.

Benchmarks come from our sourced detention benchmarks page: detention on 39.3% of stops and 135 million driver hours a year (ATRI, 2024), 1.4 hours past free time on stops with detention (FMCSA-sponsored study), and 2 hours as the free time DOT OIG reports as typical.

Frequently asked

What does the file need?

Three columns: an id (trailer, container, id, or unit), time_in, and time_out. Header names are matched case-insensitively and extra columns are ignored. One day is enough; more days give a steadier per-day figure.

Is anything stored or uploaded?

No. The CSV is parsed by JavaScript on this page and the report is drawn here. If you use the email form, only the four summary numbers are sent with your address.

Can I get this every week without exporting a file?

That is what the Vantage app does: gate in and out are stamped from a phone and the dwell clock runs live. Start free, no card, no setup fee, no hardware.