What an welding & metal fabrication invoice is for
An invoice is not a quote with the word changed. It is a payment demand, and it needs the things that actually get you paid: a due date, accepted payment methods, a reference back to the approved quote, and late terms you are prepared to enforce.
For welding and fabrication shops selling to contractors, manufacturers, ranches, and homeowners, the invoice is usually the only thing the customer compares side by side against two competitors. It is doing sales work whether you designed it to or not.
The unit that trips this trade up: Fabrication is priced by material weight plus shop hours, and mobile work carries its own rate.
What every welding & metal fabrication invoice must have
- An invoice number and issue date, distinct from the quote it came from
- Payment terms and a specific due date, not just "net 30"
- Accepted payment methods and a link or QR code that lets them pay now
- A reference to the approved quote or work order it came from
- Late fee terms, stated before they are needed
What welding and fabrication shops bill for
These are the lines that show up on most welding & metal fabrication invoices, with the unit each is normally priced in. Ranges are illustrative planning figures, not market data — your own costs, region, and margin decide the real number.
| Line item | Unit | Typical range |
|---|---|---|
| Shop labor | hour | $75–$175 |
| Mobile / on-site welding | hour | $100–$250 |
| Steel material | lb | $1–$4 |
| Aluminum or stainless material | lb | $3–$12 |
| Custom railing fabrication | linear ft | $90–$350 |
| Gate fabrication | each | $800–$6,000 |
| Structural repair | each | $350–$3,500 |
| Powder coating or finish | sq ft | $6–$25 |
Typical deposit convention: 50% at order for custom fabrication, balance on delivery.
Welding & Metal Fabrication invoice example
A realistic job, priced line by line, with the arithmetic shown the way a customer sees it:
| Description | Qty | Unit price | Line total |
|---|---|---|---|
| Design, template and shop drawings | 1 | $450.00 | $450.00 |
| Steel material and consumables | 1 | $890.00 | $890.00 |
| Shop fabrication — 14 hrs | 14 | $115.00 | $1,610.00 |
| Powder coat finish | 1 | $680.00 | $680.00 |
| On-site installation — 6 hrs | 6 | $145.00 | $870.00 |
| Subtotal | $4,500.00 | ||
| Tax (7.75%) | $348.75 | ||
| Total | $4,848.75 | ||
Notice that every assumption is a line rather than a conversation. That is the whole difference between an invoice that holds up and one that gets renegotiated in a driveway.
Three mistakes that cost welding and fabrication shops money
Material price locked too long
Steel and aluminum prices move. Put a short expiration on fabrication quotes and say the price is subject to material cost at order.
Field measurements assumed
Fabricating to drawings that do not match the field is the expensive failure in this trade. State who field-verifies and when.
Finish and installation left out
A gate that is fabricated but not coated or installed is not what the customer pictured. Itemize fabrication, finish, and installation separately.
How to send an welding & metal fabrication invoice in about a minute
A template is only half the job — the invoice still has to reach the customer in a form they can act on. With SendQuoteNow you add the customer, add your line items, and hit send. Your customer gets a branded PDF plus a link where they approve or decline with one click, and you get an email the moment they do.
- Your branding, not ours — your logo, business name, contact details, and terms on every document.
- From your phone — build and send the invoice before you leave the customer's property.
- One-click approval — no login or account needed on your customer's side.
- Automatic math — subtotal, tax, and discounts calculated as you type.
- Invoice → invoice — convert accepted work into an invoice without retyping it.