Textile Manufacturing Business Idea Overview

Investment verdict01Is Textile Manufacturing Worth It in the United States?

Quick answer

Worth it only with contracted demand

A small U.S. textile mill can produce a 5%–12% operating margin once it holds roughly 70%–85% of practical capacity, but a speculative plant built before customer qualification can burn through seven figures of working capital. The investable version starts with an order book, a narrow process scope, and equipment sized to the first two years of committed volume.

Textile manufacturing is not one business. A dry weaving or knitting mill buying yarn has a very different capital stack from a dyehouse, coated-fabric line, nonwoven plant, or cut-and-sew textile-products operation. The U.S. Census classifies fiber-to-yarn and yarn-to-fabric establishments primarily under NAICS 313, while many finished nonapparel products sit under NAICS 314. That classification choice affects permits, comparable data, insurance, and lender underwriting; the Census NAICS manufacturing definitions are the right starting point.

Demand exists. The National Council of Textile Organizations estimated U.S. fiber, textile, and apparel shipments at $60.9 billion in 2025, with a broad domestic supply chain serving apparel, automotive, defense, medical, filtration, construction, home furnishings, and industrial customers. That scale does not make a new mill automatically attractive. It means there are real buyers—and entrenched competitors with depreciated equipment, qualified processes, and established supplier terms. NCTO’s current industry figures provide useful context, but the founder’s decision still comes down to product-market fit and plant utilization.

$1.15M–$4.60MPlanning range for a leased, small dry mill with a used/new equipment mix
49,000 yd/moIllustrative operating break-even at an $8 average selling price
12–24 monthsTypical planning window to stable monthly profitability after qualification
Technical fabrics Private-label runs Contract conversion Industrial textiles Sampling fees

The strongest entry strategies avoid commodity head-to-head competition. They target short lead times, low minimum order quantities, traceable U.S. production, difficult specifications, regulated end markets, or a service package that includes development, testing, finishing coordination, and inventory programs. A founder who cannot name the first five accounts, their annual yardage, qualification steps, payment terms, and acceptable price should not sign a plant lease yet.

Startup capital02What Does a Small Textile Mill Cost to Open?

Quick answer

$1.15 million–$4.60 million

That range fits an illustrative small dry weaving or knitting operation in leased industrial space, with 15,000–30,000 square feet, a mixed used/new machine package, quality equipment, opening yarn inventory, and six months of working-capital protection. Integrated dyeing, coating, wastewater treatment, or major boiler work can push total investment above $4 million–$15 million.

The planning range below is not a supplier quote or an industry average. It is a transparent 2026 budgeting framework for a small specialty mill. Each site requires an electrical load study, compressed-air design, ventilation review, fire protection review, rigging plan, and machine-by-machine quotation. The IRS treats machinery as depreciable business property, and tax timing can materially affect cash, but tax deductions do not make weak equipment economics strong. Current IRS depreciation guidance should be modeled with a tax professional rather than assumed as immediate cash savings.

Startup item Lean case Equipped case What changes the number
Lease deposits, site diligence, utility studies $60,000 $180,000 Plant size, power capacity, landlord concessions, environmental history
Build-out, electrical, air, HVAC, fire and dust controls $180,000 $650,000 Service upgrades, ducting, humidification, sprinkler work, floor loading
Core production equipment and installation $420,000 $1,800,000 Machine count, width, controls, age, refurbishment, rigging, commissioning
Material handling, lab, inspection and production software $70,000 $240,000 Testing scope, automated inspection, warehouse and traceability needs
Permits, engineering, insurance and professional fees $45,000 $180,000 Air, wastewater, process chemicals, product testing, legal complexity
Opening yarn, fiber, chemicals and packaging $120,000 $450,000 SKU count, imported inputs, supplier MOQs, customer-owned material
Pre-opening payroll, training and commissioning $75,000 $250,000 Shift count, technician availability, trial runs, qualification rejects
Samples, sales launch and customer qualification $30,000 $100,000 Lab tests, certifications, travel, swatch books, pilot-production lots
Working-capital reserve $150,000 $750,000 Ramp speed, receivable days, inventory turns, debt service and scrap
Total initial funding need $1,150,000 $4,600,000 Before real-estate purchase or a fully integrated wet-processing line

Midpoint startup capital by use

Equipment dominates, but site work plus working capital together consume almost as much as the machinery deposit.

$1.11M
Equipment
$535K
Site and build-out
$450K
Working capital
$285K
Opening materials
$268K
Lab and compliance
$228K
People and launch

Used machines can cut the purchase price by 30%–60%, but the relevant number is installed cost per reliable hour, not auction price. Add removal, freight, rigging, electrical conversion, controls, missing documentation, spare parts, technician travel, and the revenue lost while troubleshooting. A cheap loom that holds the plant below specification is not cheap.

Plant architecture03Which Production Model Should You Build: Dry Mill, Finishing Mill, or Integrated Plant?

The highest-impact decision is not the brand of machine. It is where the plant begins and ends in the value chain. Every added process captures more margin in theory, while adding utilities, permits, quality variables, maintenance skills, and working capital in practice.

Dry conversion mill

$1.15M–$4.60M

Buys yarn and weaves, knits, braids, or performs another dry conversion process. Faster permitting and lower water risk. Best entry point when customers accept outsourced dyeing and finishing.

Finishing or coating line

$2.50M–$9.00M

Adds heat, chemicals, ovens, coating heads, emissions control, lab work, and more demanding product qualification. Attractive only where the finish is the source of differentiation.

Integrated wet-processing plant

$4.00M–$15.00M+

Adds dyeing, washing, drying, steam, water treatment, wastewater obligations, and a much larger utility footprint. This is rarely a sensible first plant without anchor volume.

The dyehouse decision changes the risk profile

Wet processing can turn a commodity greige fabric into a differentiated finished product, but it also creates the hardest permitting and cash-flow issues in the model. EPA’s textile-mill effluent rules cover wastewater from processes including scouring, dyeing, rinsing, and finishing, while local publicly owned treatment works may impose additional pretreatment limits and surcharges. Review the EPA textile-mill effluent guidelines before choosing a site—not after a lease is signed.

Printing, coating, and dyeing can also trigger air-permitting analysis and, for qualifying sources, federal hazardous-air-pollutant requirements. The EPA’s textile printing, coating, and dyeing standards explain the regulated source category. A practical budget should include environmental counsel or engineering before equipment selection because chemistry, oven design, capture efficiency, and throughput affect the permit.

A phased model can be stronger than vertical integration on day one: begin with development and dry conversion, lock in qualified finishing partners, then internalize the bottleneck only after annual volume supports the dedicated asset. The trigger should be a quantified make-versus-buy case—not frustration with a vendor.

Opening sequence04How Do You Launch a Textile Operation Without Overbuilding?

A realistic opening takes about 7–12 months for a small dry mill and longer for wet processing, major utility upgrades, or imported machinery. The critical path runs through customer qualification, site utilities, permits, machine delivery, commissioning, and first-quality production. Doing these sequentially wastes time; doing them without stage gates wastes money.

01Prove demand

Weeks 0–6. Spend $15,000–$40,000 on samples, technical sales, testing, and customer discovery. Seek forecasted annual yardage and qualification plans.

02Map the process

Weeks 2–8. Define yarn packages, widths, speeds, inspection standards, finishing routes, scrap assumptions, and labor content by SKU family.

03Qualify the site

Weeks 4–12. Budget $45,000–$140,000 for deposits, utility studies, engineering, legal diligence, and environmental review.

04Lock equipment scope

Weeks 8–20. Negotiate acceptance tests, installation responsibilities, spare parts, training, and payment milestones—not just purchase price.

05Build utilities and controls

Weeks 14–28. Complete electrical, air, ventilation, humidity, fire, guarding, material flow, lab, and warehouse work.

06Hire the core crew

Weeks 22–32. Hire supervisors and technicians first, then operators. Use commissioning time for standard work and quality training.

07Commission and qualify

Weeks 28–40. Expect trial material, setup losses, lab failures, customer audits, and at least two production cycles before stable yield.

08Release capacity slowly

Weeks 36–52. Add shifts only when backlog, training depth, maintenance coverage, and working capital support them.

Worker safety belongs in the plant design, not in a policy binder created after installation. Cotton-processing operations may fall under OSHA’s cotton-dust standard, and certain textile dusts can present combustible-dust hazards. Review the OSHA cotton-dust requirements and OSHA combustible-dust guidance while laying out ventilation, cleaning access, monitoring, and housekeeping.

Costly mistake

Do not accept a “standard industrial building” without measuring power quality, service capacity, compressed-air demand, humidity control, drainage, floor loading, truck access, and fire-code implications. A low rent can conceal a six-figure utility retrofit and months of lost commissioning time.

Before signing equipment contracts, build a plant acceptance checklist with throughput, first-quality yield, downtime, energy use, changeover time, product-width range, defect limits, and operator training. Tie final payment to demonstrated performance on your materials where possible. That discipline protects both capital and the launch calendar.

Monthly cash burn05What Does It Cost to Run the Mill Each Month?

At the illustrative base case—70,000 saleable yards per month at $8 per yard—monthly revenue is $560,000 and operating cost is about $519,000, leaving $41,000 of EBITDA before depreciation, interest, taxes, and owner distributions. This is a 7.3% operating margin. It is viable, but not forgiving.

Monthly operating item Base case % of revenue Planning behavior
Yarn, fiber, chemicals and direct materials $224,000 40.0% Variable; driven by construction, fiber blend, purchasing scale and scrap
Production payroll and burden $112,000 20.0% Step-variable; shifts add in blocks and overtime can distort the ratio
Electricity, gas, water and compressed air $34,000 6.1% Semi-variable; wet processing and process heat can be much higher
Outbound freight and packaging $28,000 5.0% Variable; roll size, geography, expedites and customer terms matter
Maintenance, wear parts and technical service $22,000 3.9% Reserve-driven; underfunding creates future downtime
Quality, scrap, lab and waste disposal $17,000 3.0% Variable; qualification periods and short runs are costlier
Plant rent, CAM and property costs $24,000 4.3% Fixed under lease; property tax and repairs rise if the building is owned
Supervision, sales, administration and software $46,000 8.2% Mostly fixed; includes owner-manager salary in the base model
Insurance, compliance and professional fees $12,000 2.1% Mostly fixed; product liability and environmental scope move the number
Total monthly operating cost $519,000 92.7% Leaves $41,000 monthly EBITDA before financing and tax

The BLS reports recent textile-production wages around the high teens to low twenties per hour for many operator roles, before payroll taxes, benefits, shift premiums, overtime, and supervision. For example, the agency’s 2025 textile product mill profile lists mean wages near $18–$20 per hour for several machine-operator occupations and materially higher pay for first-line supervisors. Use the BLS textile product mill wage profile as a floor, then price the local labor market and your shift structure.

Utilities are a production variable, not a landlord detail

Motors, compressed air, ventilation, humidity control, steam, ovens, dryers, and water systems can turn utilities into one of the plant’s largest controllable costs. Meter major systems separately and track energy per saleable yard. A Department of Energy textile-plant ventilation case documented a project with a 1.3-year simple payback, illustrating why plant-system audits can be more valuable than small purchasing savings. See the DOE textile ventilation case study.

What this operating table hides is timing. Yarn may be paid in 15–30 days, payroll every two weeks, and the customer in 45–75 days after shipment. A profitable month on the income statement can still create a cash deficit if raw material and payroll leave the bank before receivables arrive.

Signature economics06Loom Hours, First-Quality Yield, and Changeovers Decide the Margin

A textile plant does not sell theoretical nameplate capacity. It sells first-quality yards produced on time. Three losses sit between those numbers: downtime, speed loss, and quality loss. Add changeovers, and a plant that looks 85% full on the sales forecast may deliver only 65%–75% of nameplate output.

Industry-specific capacity formula Saleable yards = scheduled machine-hours × operating availability × run-rate yards per hour × first-quality yield

Illustration: 3,168 scheduled machine-hours × 80% availability × 35.5 gross yards per productive hour × 92% first-quality yield = about 82,800 saleable yards per month.

Operational lever Base assumption Downside Monthly financial effect
Operating availability 80% 72% Roughly 8,300 fewer saleable yards before demand constraints
First-quality yield 92% 86% About 5,400 yards downgraded or scrapped at the same gross output
Average selling price $8.00/yd $7.50/yd A $35,000 revenue loss on 70,000 shipped yards
Material yield 97% 94% Approximately $7,100 more monthly material consumption in this model
Changeover time 3.0 hr 5.0 hr Twenty monthly changes consume 40 extra machine-hours plus startup scrap

The non-obvious point is that first-quality yield can matter more than quoted machine speed. A faster line that creates shade variation, barre, broken ends, edge defects, coating inconsistency, or width failures may report strong gross output while destroying contribution margin. Track gross yards, first-quality yards, seconds, scrap, and rework separately. Do not let “production” hide quality losses.

A sound quoting model assigns a setup charge, minimum run quantity, expected speed, labor hours, material yield, first-quality yield, outside finishing, freight, and required contribution dollars. Salespeople should see the contribution per constrained machine-hour, not only gross margin percentage. When the plant is full, the right question is which order earns the most contribution through the bottleneck.

Revenue architecture07How Does a Textile Manufacturer Price Fabric and Build Revenue?

Most small mills earn revenue through a mix of per-yard product sales, conversion charges on customer-owned materials, sampling and development fees, setup charges, testing, finishing coordination, rush premiums, and inventory or blanket-order programs. A single per-yard quote is simple for the buyer, but it should be built from a detailed internal cost sheet.

Quote construction Price per saleable yard = direct material + conversion cost + outside process + freight allowance + setup recovery + target contribution

For the base product: $3.20 material + $1.60 direct labor + $0.49 utilities + $0.40 freight/packaging + $0.24 quality/waste + $0.31 maintenance + $1.76 contribution = $8.00 per yard.

Illustrative annual revenue mix

Contract fabric is the volume base; development and service fees protect margin on complex, short-run work.

Illustrative textile manufacturing revenue mix donut chart Contract specialty fabric 55 percent, technical and private label fabric 25 percent, finishing and service fees 12 percent, sampling and development 8 percent. $6.72M annual sales
Contract specialty fabric — 55%
Technical and private-label fabric — 25%
Finishing and service fees — 12%
Sampling and development — 8%

Product compliance can become part of the price

End use determines testing and records. Textiles sold for clothing may need to meet CPSC flammability requirements; carpets, rugs, children’s sleepwear, mattresses, and other categories have additional standards. The CPSC Flammable Fabrics Act guidance explains the regulated product categories. If testing, lot traceability, certificates, retained samples, or third-party lab work are required, quote them explicitly.

Most textile products sold in the United States also carry federal fiber-content, manufacturer or marketer, and country-of-origin labeling obligations. The FTC Textile Fiber Rule is the primary reference. Even when the mill sells business-to-business, accurate fiber records, invoices, and customer specifications protect the downstream label claim.

Commercial terms matter as much as list price. Require deposits for development and custom yarn, use minimum order quantities, charge for expedited changeovers, set raw-material price-adjustment clauses, and limit quote validity when inputs are volatile. A two-point gross-margin concession on a slow-paying account may be worse than a five-point concession to a customer who provides forecasts, owned yarn, and 15-day payment.

Owner compensation08How Much Can the Owner Realistically Make?

Quick answer

$72,000–$570,000 per year

That wide range reflects three different businesses, not one “average owner salary.” A founder running a plant near break-even may receive only a market-rate management salary. A well-loaded specialty mill with disciplined debt and high first-quality yield can support salary plus distributions above $400,000, but only after maintenance capital, taxes, debt service, and working-capital needs are funded.

Revenue is not income, EBITDA is not cash, and cash is not automatically available for distribution. The owner must first pay materials, production labor, utilities, rent, insurance, maintenance, selling costs, professional fees, debt service, taxes, equipment replacement, and the inventory and receivables needed for growth.

Owner scenario Annual revenue EBITDA Owner salary Potential distributions Total owner cash
Conservative ramp $4.80M $60K–$160K $72K $0 $72K
Base specialty mill $6.72M $492K $96K $90K–$170K $186K–$266K
High-utilization, higher-mix plant $8.40M $900K–$1.01M $120K $300K–$450K $420K–$570K

These scenarios assume the owner actively performs a general-manager or commercial role and that salary is already included in operating expense. Distributions are calculated after a representative debt-service burden, tax reserve, and maintenance-capex reserve. A manager-run plant should replace the owner salary with a hired executive cost before estimating passive income.

$6.72MRevenue
−$5.10MVariable production costs
−$1.13MFixed operating costs
$492KEBITDA
−$180KDebt service
−$137KTax and capex reserves
$175KCash before distributions

The flow is illustrative and rounded. It shows why a $492,000 EBITDA line does not equal a $492,000 owner draw.

The clean governance rule is to pay the owner a market salary for work performed, maintain a board-approved minimum cash balance, reserve monthly for maintenance, and distribute only cash above the operating floor. That protects the plant from the common cycle of a strong quarter followed by an emergency borrowing request.

Break-even and ramp09When Does the Mill Break Even and Turn Cash-Flow Positive?

In the base model, variable costs equal about 75.9% of revenue, producing a 24.1% contribution margin. Fixed operating costs are approximately $94,000 per month. That creates operating break-even revenue near $390,000 per month.

Break-even revenue $94,000 fixed costs ÷ 24.1% contribution margin = $390,041 monthly revenue

At an $8.00 average selling price, operating break-even is about 48,800 saleable yards per month. Adding $15,000 monthly debt service and a $6,000 maintenance-capex reserve raises cash break-even to about $477,000, or nearly 59,600 yards.

Illustrative utilization ramp

Operating break-even arrives near 59% of practical saleable capacity; cash break-even usually needs about 72% once debt and reserves are included.

Illustrative textile mill utilization ramp from month one to month eighteen Utilization increases from 35 percent in month one to 82 percent in month eighteen, crossing operating break-even around month seven and cash break-even around month eleven. 0% 25% 50% 75% M1 M3 M6 M9 M12 M15 M18 Operating break-even: 59% Cash break-even: 72%

The timing depends less on ribbon-cutting day than on qualification day. Industrial customers may require lab validation, sample runs, process audits, first-article approval, and several accepted shipments before regular forecasts begin. Plan 12–24 months to reach stable profitability, with cash break-even later when debt service and inventory growth are heavy.

A conservative ramp keeps one shift partially loaded, protects quality, and builds maintenance routines. The dangerous ramp adds a second shift to chase late orders before supervisors, spare parts, and working capital are ready. More scheduled hours can produce less cash if overtime, downtime, rejects, and expedites rise together.

Capital stack10How Should You Fund Equipment, Inventory, and Receivables?

Textile plants need different money for different assets. Long-lived machinery should not be financed with a short-term line. Receivables should not consume the cash reserved for installation. A sensible capital stack matches debt maturity to asset life and preserves a borrowing base for inventory and accounts receivable.

Funding need Best-fit source Illustrative share Lender focus
Building improvements and fixed utilities Owner equity, landlord allowance, long-term bank or SBA-backed debt 15%–25% Lease term, collateral, permits, appraised value, useful life
Production machinery Equipment term loan, equipment lease, SBA-backed term debt 35%–50% Resale value, installation, vendor, acceptance test, debt coverage
Opening inventory and ramp losses Equity, subordinated capital, working-capital term loan 15%–25% Material obsolescence, forecasts, supplier terms, downside runway
Receivables and seasonal orders Revolving line, borrowing-base facility, purchase-order finance 10%–20% Customer credit, concentration, dilution, aging, eligible inventory
Testing, samples and market development Owner equity, strategic customer contribution, grants where eligible 5%–10% Milestones, customer letters, intellectual property, commercialization plan

SBA-backed financing can support real estate, improvements, machinery, equipment, supplies, and working capital, subject to lender underwriting and program eligibility. The current SBA 7(a) loan guide describes eligible uses. Manufacturers should also ask lenders about revolving working-capital structures, because receivables and inventory can grow faster than accounting profit.

What lenders want to see

  • Customer evidence: signed purchase orders, letters of intent, qualification schedules, backlog, reorder history, and concentration limits.
  • A machine-level capacity model showing scheduled hours, speed, yield, downtime, changeovers, and bottlenecks.
  • Three years of monthly projections with a 20% volume downside, a 5% material-cost shock, and a six-month qualification delay.
  • Vendor quotations that include freight, rigging, installation, controls, training, acceptance testing, and warranty.
  • A sources-and-uses schedule that separates fixed assets, opening inventory, startup losses, and permanent working capital.
  • Debt-service coverage, minimum liquidity, owner injection, collateral, environmental diligence, and insurance requirements.

The NIST Manufacturing Extension Partnership can help small and midsize manufacturers with operational improvement, risk reduction, sustainability, and technical assistance. A local NIST MEP center can be useful during layout, quality-system, energy, workforce, and scale-up planning.

Control panel and payback11Which KPIs, Risks, and Payback Tests Decide Whether the Model Works?

A useful textile financial model connects commercial demand to physical capacity and then to cash. Price and shipped yards drive revenue. Material usage, labor hours, utilities, freight, and yield drive contribution. Fixed plant costs set break-even. Receivable days and inventory turns determine the funding gap. Debt, taxes, maintenance capex, and reserves determine what is actually available to the owner.

KPI Formula Planning benchmark Decision it drives
First-quality yield First-quality yards ÷ gross yards Target 90%–96%; investigate sustained movement below 90% Pricing, scrap reserve, process control, customer claims
Operating availability Run hours ÷ scheduled hours Plan 75%–85% during ramp; mature target depends on process Maintenance staffing, spare parts, capacity promises
Contribution per bottleneck hour (Revenue − variable costs) ÷ constrained machine-hours Rank orders; no universal dollar benchmark Product mix, scheduling, quote approval
Labor cost per saleable yard Production payroll and burden ÷ saleable yards Base model: $1.60/yd; warning above $1.85/yd Crew size, overtime, training, automation
Energy cost per saleable yard Plant utility cost ÷ saleable yards Base model: $0.49/yd; trend by product family Rate negotiation, system audits, process choice
On-time-in-full Orders complete and on time ÷ orders due Target above 95%; premium accounts may require 98%+ Customer retention, expedite cost, safety stock
Inventory turns Annual material cost ÷ average inventory Plan 4–8 turns; lower can signal excess SKU complexity Working capital, buying policy, obsolescence reserve
Days sales outstanding Accounts receivable ÷ annual credit sales × 365 Target below 45–55 days; escalate above terms Credit limits, collections, revolver size
Customer concentration Largest customer sales ÷ total sales Prefer below 20%–25%; price risk rises above 30% Sales pipeline, lender covenant, account strategy

The risks that consume cash fastest

Risk Early trigger Illustrative financial impact Control
Qualification delay Samples pass internally but customer approval stalls $200K–$600K extra runway for a 3–6 month delay Stage-gate equipment spend and secure paid development work
Yield collapse First-quality yield below 88% for two weeks $40K–$90K monthly margin loss at base volume Stop-loss rules, root-cause review, lot traceability, preventive maintenance
Input-price shock Yarn or chemistry rises more than 5% without price reset A 5% material increase costs about $11,200 per month Indexed pricing, quote expiry, alternate suppliers, customer-owned material
Receivable stretch DSO rises from 45 to 70 days About $460K additional cash tied up at $6.72M annual sales Credit controls, deposits, milestone billing, borrowing base
Customer concentration One account exceeds 30% of sales Loss can erase a full shift and breach debt coverage Capacity reservations, termination notice, active diversification
Major machine failure Parts obsolescence or rising unplanned downtime $50K–$250K repair plus lost contribution Critical-spares list, service agreements, redundancy at bottlenecks
Payback period Initial investment ÷ annual unlevered cash flow after tax and maintenance capex

Using a $2.20 million representative investment: $2.20M ÷ $120K = 18.3 years in the downside case; $2.20M ÷ $360K = 6.1 years in the base case; and $2.20M ÷ $720K = 3.1 years in the upside case.

A credible underwriting target is usually a 5–8 year unlevered payback for a small specialty operation, not the two-year story that appears when a spreadsheet assumes instant utilization, perfect yield, no working-capital growth, and no replacement capex. Payback stretches when customer qualification is late, one product fills the bottleneck inefficiently, receivables age, or the plant adds inventory faster than it converts profit to cash.

Key takeaways

  • Budget $1.15M–$4.60M for a small dry mill; wet processing can require several million more.
  • Do not order production assets before customers confirm specifications, qualification steps, annual yardage, and commercial terms.
  • Manage the mill around first-quality yards and contribution per bottleneck hour, not gross output.
  • In the base case, operating break-even is about $390K per month; cash break-even is closer to $477K.
  • Expect 12–24 months to stable profitability and a base-case payback around 6 years.
  • The honest verdict: it is worth pursuing when demand is contracted, process scope is narrow, and the funding package includes permanent working capital—not merely machinery debt.

Build the decision around a monthly financial model that integrates machine capacity, customer ramp, price by product family, material usage, labor staffing, utilities, yield, working capital, debt, taxes, and replacement capital. The model should reject the project under plausible downside assumptions before the founder commits—not explain the miss after cash is gone.