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Professional HDG Tools, One Membership

Get unlimited access to the full suite of hot-dip galvanizing calculators and resources — built from real plant data and industry standards. Cancel anytime.

What these tools change in your day

Not a feature list — outcomes on the plant floor and in your bids.

Control zinc consumption — estimate pickup per tonne and rein in over-coating.
Run pickling baths to optimal life — less acid waste, fewer early dumps.
Stop vent & drain rejects — get hole layout right before the kettle.
Bid with real numbers — accurate cost per tonne, win on margin not guesswork.
Cut rework & re-dips — catch design and coating issues early.
Size & cost plant decisions — kettle to crane, straight from your targets.
Monthly
$19/ month
Billed monthly · cancel anytime
  • All 6 premium tools
  • PDF / drawing exports
  • Free updates & new tools
  • Email support
Secure Paddle Cancel anytime 14-day refund
14-day money-back guarantee Cancel anytime Secure checkout by Paddle No card details stored by us

One rejected or re-dipped batch costs far more than a year of access. At $149/year, these tools pay for themselves the first time they catch a mistake.

Payment to first calculation in under a minute

1
Pay via Paddle
Secure overlay checkout
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Set your password
No waiting for approval
3
Dashboard opens
Your members area
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6 tools unlocked
Plus every update
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Start calculating
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Find your job below

Whatever your role in hot-dip galvanizing, here's what you'll open first.

🏭

Plant manager & operations

  • Control zinc usage, dross & ash per tonne
  • Hold pickling baths at peak efficiency
  • Size & cost plant upgrades from targets
You'll open: Plant Design · Cost Calculator · Pickling Optimizer
🧾

Estimator & sales

  • Real galvanizing cost per tonne
  • Accurate, defensible project bids
  • Fast steel & grating weight + cost
You'll open: Cost Calculator · Steel Products Calculator
🧪

QA / QC engineer

  • Acid & coating control to ASTM / ISO
  • Catch vent/drain rejects before the kettle
  • Standard-referenced titration & checks
You'll open: HCl Converter · Hole Planner · Standards Library
🏗️

Fabricator & designer

  • Plan vent & drain holes right the first time
  • Weigh & cost steel products and gratings
  • Avoid distortion, trapped zinc & rejection
You'll open: Hole Planner · Steel Products Calculator

What's Included

One membership unlocks every tool in the members area — with more on the way.

hdgcommunity.com/members · Plant Design

HDG Plant Design

Size a complete galvanizing plant from an investor's targets — kettle, furnace, chemical line, building and cranes — and cost it from a live multi-supplier price database.

hdgcommunity.com/members · Cost Calculator

HDG Service Cost Calculator

Galvanizing cost per tonne — zinc pickup, consumables, energy, labour and margin, from live zinc pricing and your plant's parameters.

hdgcommunity.com/members · Steel Calculator

Steel Products Calculator

Weight, cost and design for profiles, standard sections, grating, wire rod and mesh — with estimation and shop-drawing exports.

hdgcommunity.com/members · Pickling Optimizer

Pickling Optimizer

Manage your HCl pickling system — bath concentrations, dosing, dilution, regeneration and the Kleingarn relationship.

hdgcommunity.com/members · HCl Converter

HCl Converter

Convert HCl titration to % w/w, normality and g/L, and interpolate any aqueous HCl property from the standard chart.

hdgcommunity.com/members · Hole Planner

Vent & Drain Hole Planner

Mark vent and drain holes on photos of fabricated steel, size them from section volume, and export a driller-ready PDF.

More tools on the way

Zinc bath management, dross & ash tracking and KPI dashboards are coming — included in your membership as they launch.

Why this isn't just another calculator website

These tools come out of running real galvanizing plants — not a textbook.

Built on the plant floor

Designed by a galvanizing engineer with 21+ years in production and 9+ plant projects — every tool solves a problem actually hit in operation.

Standards, not opinions

Grounded in ASTM, ISO, EN and SSPC/NACE — the same references your inspectors and clients already use.

Made for decisions

Costing, bath control, hole layout, plant sizing — operational answers you act on, not academic theory.

One toolkit, always growing

Six tools today, more each month — all included, all maintained, all behind one login.

Questions

What do I get with a membership?

Full access to every professional tool in the members area, including all exports, plus any new tools and updates released during your subscription.

Can I cancel anytime?

Yes. You can cancel from your account at any time. You'll keep access until the end of your current billing period, and you won't be charged again.

How do refunds work?

New members are covered by a 14-day money-back guarantee on the first payment. See our Refund Policy for full details.

How is payment handled?

Payments are processed securely by Paddle, our Merchant of Record. We never see or store your card details. Your receipt and invoice come from Paddle.

Do you offer team or whole-plant licences?

Yes — for multiple seats or a site licence for your plant, contact us for a quote.