How do you calculate quote margin on a vessel bid?

Subtract your fully loaded cost from the quoted price, then divide by the cost basis. With a $125 quote against $100 cost and a $100 basis, the margin is $25, or 25%.

What is a good quote margin for pressure vessel fabrication?

Custom code shops typically target 20-35% gross margin to cover material risk and NDE rework; 25% is a solid mid-range target, but thin-plate commodity tank work often runs lower and forged high-pressure work higher.

Quote margin vs markup — what is the difference?

Margin is profit as a percentage of price or a chosen basis; markup is profit as a percentage of cost. A 25% margin here corresponds to a higher markup on cost, so never quote as if the two are the same.

Why does my realized margin come in below my quoted margin?

Usually because loaded cost at quote time omitted rework hours, documentation labor, or a material escalation. On a vessel that first-shot RT rejects, weld repair alone can shave several points off margin.

Should I quote margin on cost or on price?

This calculator lets you pick the cost basis, but be consistent shop-wide. Mixing basis between jobs makes bids incomparable and can make a losing quote look profitable.

How does material volatility affect vessel quote margin?

Plate and forging prices can move between bid and PO, so a 25% margin can compress fast. Many shops add an escalation clause or a material contingency inside loaded cost to protect it.

Tank, Vessel & Pressure Equipment Fabrication calculator

Quote Margin Calculator

Quote Margin tells a fabrication shop how much cushion sits between the price quoted for a tank or pressure vessel and the fully loaded cost to build it. In vessel work, thin margins are dangerous because material volatility on plate and forgings, plus unpredictable NDE rework, can erase a slim quote overnight. Estimators and shop owners use this number to sanity-check a bid before it goes out and to compare the profitability of competing jobs. A margin that looks fine on paper but ignores rework and documentation labor is how code shops lose money on a full order book.

What this calculator does

Quote Margin tells a fabrication shop how much cushion sits between the price quoted for a tank or pressure vessel and the fully loaded cost to build it.
Use it when quote margin in tank, vessel and pressure equipment fabrication needs a clean margin number for a tank, vessel and pressure equipment fabrication go / no-go review.
It computes the difference between the quoted price and the loaded fabrication cost, then expresses that margin as a percentage of a chosen cost basis.

Formula used

Quote Margin margin = available value - required value
Margin percent = margin ÷ reference value

Inputs explained

Quoted vessel price to the customer:
Fully loaded fabrication cost:
Cost basis used for margin:

How to use the result

Use it at bid time to validate a quote, and again after job costing to compare realized margin against what you quoted.
It is a snapshot on the numbers you enter — if your loaded cost omits rework contingency or documentation labor, the margin will look healthier than reality on a code-stamped vessel.

Current U.S. benchmarks

U.S. iron and steel imports ran $2.1B in May 2026 (Census International Trade). The U.S. ran a trade deficit of $0.4B in the category that month. Import volumes are the pressure gauge behind tariff and reshoring decisions.
Steel mill PPI stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. New factory orders are up 2.3% year over year (Census).
The U.S. has 53,790 fabricated metal products establishments employing about 1,441,471 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate quote margin on a vessel bid? Subtract your fully loaded cost from the quoted price, then divide by the cost basis. With a $125 quote against $100 cost and a $100 basis, the margin is $25, or 25%.
What is a good quote margin for pressure vessel fabrication? Custom code shops typically target 20-35% gross margin to cover material risk and NDE rework; 25% is a solid mid-range target, but thin-plate commodity tank work often runs lower and forged high-pressure work higher.
Quote margin vs markup — what is the difference? Margin is profit as a percentage of price or a chosen basis; markup is profit as a percentage of cost. A 25% margin here corresponds to a higher markup on cost, so never quote as if the two are the same.
Why does my realized margin come in below my quoted margin? Usually because loaded cost at quote time omitted rework hours, documentation labor, or a material escalation. On a vessel that first-shot RT rejects, weld repair alone can shave several points off margin.
Should I quote margin on cost or on price? This calculator lets you pick the cost basis, but be consistent shop-wide. Mixing basis between jobs makes bids incomparable and can make a losing quote look profitable.

Last reviewed 2026-05-12.