Union Toolbox · Pile Driver

Free for a month. Then $4.99 a year.

Nothing to download: the app runs in your phone's browser, not the Play Store or App Store. Open the calculator and use it free for the first month.

One license, everything
$4.99a year

By buying you agree to the Terms of use. Changed your mind? Email support@uniontoolbox.com within 14 days of buying for a full refund.

  • The paycheck calculator: straight time, overtime, double time, the taxable vacation that goes to your fund, dues and assessments, Social Security, Medicare, federal and state income tax, and allowances.
  • The Pile Drivers Master Labor Agreement for the 46 Northern California counties (Local 34), with its drilled-pile overtime rule, and the bridge builder rate DIR names for it; the Southern California Carpenters Master Labor Agreement's pile driver and diver appendices (11 southern counties and San Diego); the Eastern Washington/Northern Idaho agreement's pile driver sheets; and, with the deductions typed in by you, the Cascadia agreement's pile drivers in western and central Washington and in Oregon and southwest Washington, Alaska's Pamphlet 600 piledriver and diver rates (Local 2520) and Hawaii's carpenter rate that pile drivers are paid (Local 745). In the East: Local 1556 dockbuilders in New York City, on the state's Long Island and Westchester schedule and in north and central New Jersey; Local 474 in south New Jersey and southeast Pennsylvania; Local 274's western Pennsylvania heavy and highway rates; Local 56 in Massachusetts; the Buffalo and Albany heavy and highway pile driver rates; and northwest Ohio heavy and highway pile drivers (Local 1090). Journeymen, foremen, divers, tenders and apprentices where published, with federal, state and FICA withholding.
  • Hours log, year log and calendar. Every day you worked, every paycheck, the year total, by employer and by month.
  • Every employer, each with its own agreement, rate, W-4 and year-to-date, and the trade info pages.

Your key is tied to your email address and works on up to three of your own phones. Everything you logged during the free month is kept and comes back the moment you activate.

How to get a key

1
Message the person who sent you this link, and they will tell you how to send the money.
2
You get a key that looks like UPD-XXXX-XXXX-XXXX.
3
Open the app, go to Settings, scroll to License, type the key and tap Activate.

Made by a union worker, for union workers. Your hours never leave your phone. Stripe takes your card; we only get your email, to keep with your key. Privacy · Terms · Back to the calculator

© 2026 Union Toolbox. All rights reserved.