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The custom gate: $735 true cost quoted at $985 — the shop rate carries the welder; the materials markup just covers the waste.
Fabrication pricing fails in both directions: hourly-at-your-wage starves the shop, and gut-feel fixed quotes fund rework you never priced. The durable structure: materials at 1.2–1.4× (covering cut waste, drops, and handling — not profit) plus a shop rate of $65–125/hr that carries wage, burden, rent, equipment, and insurance. The custom gate in the example costs $735 to produce and quotes at $985 — 25% margin where it belongs. This calculator builds the quote from your real costs.
Fabricators use it before quoting custom work: the gate costs $735 to produce and quotes at $985 — the shop rate carries the margin, the materials markup just covers the waste.
Materials markup plus shop rate, quoted from drawings — never vibes. The split has a logic: the materials markup (1.2–1.4×) covers cut waste, drops, handling time, and the steel-price risk between quote and purchase — it is cost recovery, not profit. The shop rate ($65–125/hr depending on region and specialty) is the margin engine, and it must recover wage + payroll burden + insurance + rent + equipment amortization — price the rate from your true loaded cost, or growth just scales the leak. Quoting discipline separates shops from hobbyists: fixed quotes only from drawings or existing patterns; "custom, we'll figure it out" jobs are time-and-materials with a deposit; design time on real projects is billable. Deposits: 50% before ordering on materials-heavy jobs — steel price swings between quote and build belong to the customer unless you enjoy eating them. Minimums protect the calendar: 1-hour bench minimum in the shop (setup costs the same for a bracket as a bumper) and 2-hour minimums plus trip charges on mobile calls.
Build it from loaded cost, not from what the guy across town charges. The stack: your wage target + payroll burden (15.3% SE or employer share) + insurance (liability plus the truck) + rent and power share + equipment amortization (the welder, plasma table, and compressor all die on a schedule) — divided by billable hours, which are 50–65% of shop hours at best (quotes, cleanup, material runs, and rework eat the rest). Market bands: general repair and light fab runs $65–90/hr regionally; TIG, aluminum, and stainless command $85–125; sanitary/food-grade and certified structural work price at the top. Certification economics: AWS D1.1 structural or 6G pipe certs convert the same torch hours into 40–70% higher rates — the test fee is trivial against the rate jump, the same ladder logic as a nurse's CCRN or an engineer's PE. The niches that out-earn general fab: aluminum TIG, sanitary/food-grade, architectural railings with code compliance, and emergency repair for contractors — a down excavator pays emergency rates happily because their machine earns $200/hr idle.
As a premium-priced supplement, yes; as the whole business, only with discipline. Mobile economics: the truck, welder/generator, and fuel mean your loaded cost runs $15–25/hr above the shop, which is why the 2-hour minimum plus trip charge exists — a $95 repair 40 minutes away loses money without them. Where mobile wins: repair work (farm equipment, trailers, fences, gates on-site) where the customer's alternative is disassembly and hauling; contractor support (structural steel fixes, equipment repair at the job site) at emergency rates; and the convenience premium for customers who cannot move the work. Where it loses: production work (wind, weather, and position welding kill speed and quality — the shop's bench, jigs, and overhead crane earn their rent), and scattered low-ticket calls that burn route time. The honest hybrid: shop-based with mobile as a scheduled service line — batch mobile calls geographically like every route business, quote the callout minimum in the first sentence, and let the shop carry the margin while the truck carries the premium.