How to Read a Metal Fabrication Quote: A Homeowner's Guide
What a custom staircase or railing quote should include, which line items to question, and how to compare two quotes that look very different on paper.
May 4, 2026
A metal fabrication quote should itemize materials, labour, finish, hardware, engineering, and installation separately. Here's what to look for and what the gaps mean.
Getting multiple quotes on a custom metal staircase is sensible. Knowing what to compare is harder. Two quotes for the “same stair” can differ by $15,000 and both be correct, because they are quoting different scopes.
Here is what to look for.
The line items a complete quote should include
A full custom staircase quote in Metro Vancouver should break down roughly as follows:
Design and drawings. This covers the shop drawings that translate the site dimensions, design intent, and engineering requirements into a fabrication plan. Some fabricators include basic drawings in the fabrication price; others charge separately. For complex stairs or projects where the design is still evolving, this can be a meaningful line item.
Materials. Structural steel, tread material, railing hardware, and fasteners. A quality quote should specify the steel spec (tube size, wall thickness, or standard section), the tread substrate (hardwood species, gauge of steel pan, etc.), and the hardware grade. Generic “materials” with no specification is a warning sign.
Fabrication labour. The cost of cutting, fitting, welding, grinding, and assembling the steel in the shop. This is the core of the fabrication price and reflects the shop’s hourly rates, the complexity of the geometry, and the amount of custom detail work.
Finish. Powder coat colour and application, galvanizing (if exterior), patination, or clear coat. Some contractors include a standard powder coat finish; others quote it separately. If the quote says “paint” without specifying a powder coat applicator, ask what is actually included.
Hardware. On cable railing, this means the cable, swage fittings, tensioners, and any end hardware. On glass railing, this means the standoffs, base shoes, glass clips, and top rail. Hardware is sometimes included in the materials line; sometimes it is a separate item. Confirm that hardware is in scope.
Delivery. Getting a fabricated stair from a shop in Burnaby or Surrey to a site in West Vancouver or Kitsilano is a real cost. Larger stair sections may need a flatbed and a crane or pipe-hoist for upper-floor access. Confirm whether delivery is included.
Installation. Labour to set the stair, connect to the building, install the railing, tension the cable, set the handrail, and finish the install to the point where other trades can complete their work. Installation is separate from fabrication and can represent 15–30% of the total project cost on a complex project.
Engineering. Sealed structural drawings and an engineer’s review letter confirming the stair design meets code. This is required on most permitted stairs. Some fabricators work with an in-house or preferred engineer and bundle the cost; others require the homeowner to arrange their own engineer separately.
Permit coordination. Helping the homeowner or GC submit the permit application, responding to AHJ questions, and attending inspections. Some fabricators handle this; others leave it entirely to the homeowner.
How two quotes can differ by $15,000
Scenario: Two fabricators both quote a “mono stringer stair with glass railing.” Quote A is $32,000. Quote B is $47,000.
Quote A may be fabrication-only, excluding: engineering ($2,500), glass hardware and panels ($4,500), installation ($5,000), and permit coordination ($1,500). True project cost: $45,500.
Quote B includes all of the above items. True project cost: $47,000.
The gap is real, but Quote B is actually the better deal — by $1,500, and with one accountable contractor managing the full scope.
This scenario is common. Always ask each contractor: “Is engineering included? Is glass or cable hardware included? Is installation included? Is permit included?”
Questions worth asking before you accept any quote
- What steel specification is being used for the stringer? (Tube size, wall thickness.)
- What tread species or substrate is included, and what thickness?
- Is hardware — cable fittings, standoffs, glass panels, base shoes — included in the price?
- Is the finish a powder coat, and which applicator are you using?
- Is engineering and an engineer’s letter included, or do I arrange that separately?
- Is delivery to site included?
- Is installation included, and does that cover all hardware tensioning and handrail attachment?
- Who is responsible for permit application and AHJ coordination?
- What is the payment schedule, and does it include a deposit, milestone payment, and holdback?
- What is the current lead time from deposit to installation?
A contractor who cannot answer these questions clearly is worth being cautious about. The questions are not adversarial — they are the same questions the contractor should have asked themselves when pricing the project.
Lead time is part of the quote
The price is not the only number that matters. A quote with a 4-week lead time and a quote with a 12-week lead time are different products if the project has a fixed move-in date. Ask each contractor for a current lead time estimate from deposit to scheduled installation date, and confirm how firm that estimate is.
In our shop, a standard residential staircase typically runs 8–12 weeks from approved drawings to scheduled installation, though stairs with complex geometry, specialty finishes, or required engineering review can run longer. Confirm current lead time directly with each fabricator when getting quotes.
Related reading: the custom metal stair cost guide, the floating staircase cost guide for Vancouver 2026, and the custom metal fabrication process overview.
Related questions
Why is one fabricator's quote so much lower than another's?
Large differences in quotes usually mean one of three things: different scope assumptions, different material specifications, or different engineering and permit inclusions. Ask both contractors to itemize the same line items and compare the numbers side by side.
What should a custom staircase quote include?
A complete custom staircase quote should cover design and drawings, material supply, fabrication, finish, hardware, delivery, installation, engineering (if required), and permit coordination (if included). Ask for each line item separately.
Should I choose the lowest quote?
Not automatically. The lowest quote often excludes engineering, permit, or hardware line items that are included in a higher quote. Compare total delivered-and-installed costs, not the base fabrication number.
