Stop Losing Money on Every Quote: A Fabrication Pricing Guide

Pricing is the most important business decision a fabrication shop makes — and it is made dozens of times a week. Yet most businesses approach it the same way they did when they started: estimate the material, add a number for labour, round up a bit for contingency, and hope the margin holds.

For a small job, this can work. For an $11,000 fit-out or a multi-site aluminium installation, the cumulative effect of small pricing errors — missing a wastage factor here, underestimating edging time there, forgetting to include a site-specific surcharge — compounds into a job that costs you money to deliver. This guide breaks down how to build a pricing framework that protects your margin on every single quote.

Step 1: Material cost — get the unit right first

The most common pricing error in fabrication is not applying the wrong margin — it is using the wrong unit of measure. Materials are purchased in one unit and consumed in another, and the conversion between them is where costs disappear.

Stone and countertop fabricators buy slabs (each) and sell by m². A standard slab might yield 6.5 m² of usable surface. Your cost per m² is therefore the slab price divided by that yield — not the slab price divided by the nominal slab size. A slab priced at $450 with a yield of 6.5 m² costs $69/m². If you are quoting at $59/m² because you used the full nominal area in your calculation, you are losing $10 on every square metre before you have even picked up a tool.

Timber fabricators face the same issue but in three dimensions. Timber is priced per m³ (cubic metre) but specified per linear metre or per panel. A 38×228 PAR board sold at $335/m³ has a running metre price of $2.91/lm. If your quoting system works in linear metres and you have not done that conversion correctly — and kept it updated as timber prices change — you will be wrong every time.

Aluminium is typically priced per kilogram or per linear metre of extrusion profile, with prices varying significantly by alloy and temper. A 6005A-T5 extrusion profile might cost $4.50/lm while a 6060-T5 equivalent costs $3.35/lm. Using a blended rate instead of profile-specific pricing introduces systematic error across every aluminium quote.

Step 2: Wastage — the cost you always forget

Every fabrication process produces waste. Cut-offs, off-cuts, edge trim, sanding dust, rejected pieces, trial cuts — all of it costs money. The question is not whether you have wastage, it is whether your quote price includes it.

Wastage factors vary by material, by job complexity, and by the skill level of the operator. Typical ranges:

Apply the wastage factor to the material cost line, not to the total job value. If the net material required for a job is 8.4 m² of a stone at $71/m² and your wastage factor is 18%, your material cost line should be: 8.4 × 1.18 × $71 = $704 — not $596. The difference is $108 on one job. Across fifty stone countertop jobs a year, that is $5,400 in costs you are not recouping.

Step 3: Labour — time is your most perishable asset

Labour is the second largest cost line for most fabrication businesses and the one most frequently underpriced. The core mistake is confusing the hourly cost of an employee (what you pay them) with the fully loaded cost of that person to the business.

Your fully loaded labour cost includes base wages, payroll taxes, benefits, leave provision, and a share of management time. A machinist earning $4,500/month has a fully loaded cost closer to $5,800/month once statutory costs, leave, and supervision are included. At 176 billable hours per month, that is an effective cost rate of $33/hour — not $26/hour based on base wages alone.

The second part of the labour equation is time estimation. How many hours does this job actually take? For most fabrication businesses, the honest answer is: we guess, based on experience. This works reasonably well on familiar job types. It fails on unusual jobs, complex profiles, or jobs that hit production stages where the operator is less skilled.

The solution is to track actual production time per stage on every job and build a reference library from real data. After thirty granite countertops with sink cut-outs, you have a reliable benchmark: that specific operation takes between 1.8 and 2.4 hours depending on configuration. Your quotes can now use data-backed time estimates rather than memory.

Build your labour rates into your quoting system as a rate card: cutting station at $38/hr, edging at $28/hr, polishing at $32/hr, installation crew at $52/hr per person. Multiply by the time estimate for each stage and you have a defensible labour cost line that is consistent across every quote.

Step 4: Overhead allocation — the invisible cost

Overhead is the cost of running the business that cannot be directly attributed to a single job: rent, electricity, machine maintenance, insurance, software subscriptions, administrative staff, consumables (blades, discs, polishing pads, coolant). These costs exist whether you produce one job or twenty.

Most small fabrication businesses either ignore overhead entirely (fatal) or build it into their margin target (imprecise). The more rigorous approach is to calculate your monthly overhead total and allocate it across your production capacity.

Add $8.44 for every production hour estimated on a job. Now your cost calculation is complete: material (with wastage) + labour (fully loaded) + overhead allocation = total job cost. Any amount above this is your gross profit. Your margin is gross profit divided by the selling price.

Step 5: Margin targets — know your number

With a fully loaded cost in hand, the final question is: how much margin do you need? The answer depends on your business model, your market position, and your reinvestment goals.

A healthy gross margin for a custom fabrication shop sits between 28% and 45%, depending on the complexity and value-add of the work. High-volume, commodity-adjacent jobs (basic aluminium window frames, standard MDF shelf units) typically carry lower margins (22–30%) because there is more competition and lower differentiation. Bespoke, complex, or high-specification jobs (custom stonework, architectural metalwork, high-end joinery) should carry 35–50% gross margin because the skill barrier is higher and alternatives are fewer.

Do not confuse gross margin with net profit. Your gross margin still needs to cover selling costs (sales commissions, marketing, quote preparation time), financing costs, and the owner's salary. A business running at 35% gross margin with $750K in annual revenue has $262,500 gross profit — but after sales costs ($40K), the owner's salary ($150K) and financing costs ($16K), the net profit before tax is $56,500 — a 7.5% net margin. That is fine, but it leaves little room for error.

Set your margin target per job category and hold it. When competitive pressure pushes you to discount, know exactly what you are trading: a 5% discount on a $4,500 job at 35% gross margin reduces your gross profit from $1,575 to $1,350 — a 14% reduction in gross profit for a 5% price concession. That mathematics should inform every negotiation.

Step 6: Tax, deposits and the full quote structure

If your business is registered for VAT, GST, or sales tax, that tax is added on top of your total selling price. It is collected on behalf of the revenue authority and passed through — it is not your income. Your invoicing system needs to separate it correctly, claim input tax on supplier invoices where eligible, and reconcile outputs on the cycle your jurisdiction requires. Getting this wrong is expensive.

A complete quote should show: line items (material, labour, delivery, installation), subtotal excluding tax, tax amount, and total including tax. Deposit terms should be stated clearly — typically 50–60% on order for custom fabrication jobs, with the balance due on delivery or installation completion. This protects your cash flow and aligns client commitment with your material purchase obligation.

A well-structured quote is also a sales document. Professional presentation — your branding, clear line items, stated delivery timeframe, terms of payment, and a direct call to action — increases acceptance rates. Clients who receive a clear, professional proposal perceive higher quality before a single product is made. Your pricing system and your sales presentation are not separate things.