Opening a Shop: The Numbers You Need to See First
A shop is a big commitment. Know the math before you leap.
A shop dramatically increases fixed costs — rent, utilities, buildout. You need consistent high volume to break even. Most successful shop owners started mobile, built clientele, then transitioned. Don't open a shop hoping customers will come; open when you have more demand than you can serve mobile.
Mobile vs. Shop: The Trade-offs
MOBILE: + Low overhead + Flexibility + Customer convenience - Weather dependent - Limited services (no paint booth) - Capacity limited by drive time SHOP: + Weather-proof + Full service capability + Higher perceived value + Walk-in potential - High fixed costs - Location dependent - Customers must come to you
Startup Costs
LEASE COSTS: Security deposit: $5,000-15,000 First/last month rent: $4,000-10,000 Lease signing fees: $500-1,000 BUILDOUT: Floor coating/drainage: $3,000-10,000 Lighting upgrades: $2,000-5,000 Electrical work: $2,000-8,000 Plumbing (if needed): $3,000-10,000 Paint/walls: $1,000-3,000 Waiting area: $2,000-5,000 Signage: $2,000-8,000 EQUIPMENT: Lift(s): $3,000-8,000 each Air compressor: $1,500-4,000 Pressure washer: $500-2,000 Water reclaim (if required): $5,000-15,000 TOTAL STARTUP: $35,000-100,000+
Monthly Fixed Costs
Rent: $2,000-5,000 Utilities: $300-800 Insurance: $300-600 Internet/phone: $150-250 Water/sewer: $100-300 Trash: $100-200 Security: $50-150 Misc: $200-400 TOTAL MONTHLY FIXED: $3,200-7,700 This is before payroll, supplies, or your salary.
Break-Even Math
Example shop: Fixed costs: $5,000/month Variable costs (labor, supplies): 40% of revenue Target owner salary: $6,000/month Break-even calculation: $5,000 + $6,000 = $11,000 minimum needed At 40% variable: Need $18,333/month gross $18,333 ÷ 22 working days = $833/day minimum At $300 average ticket = 2.8 jobs/day minimum At $400 average ticket = 2.1 jobs/day minimum
Location Requirements
Space Needs
- 1-2 bay shop: 1,500-2,500 sq ft
- 3-4 bay shop: 3,000-5,000 sq ft
- Height: 12+ feet for lifts
- Drainage: Floor drains required
- Parking: Space for customer vehicles waiting
Zoning and Permits
- Commercial/light industrial zoning
- Business license
- Water discharge permits (varies by area)
- Signage permits
- Occupancy permits
Location Factors
- Visibility and traffic (if walk-ins matter)
- Proximity to target customers
- Parking and accessibility
- Competition nearby
- Demographics of area
When a Shop Makes Sense
- You're already maxed out mobile
- You want to add PPF, tint, or paint work
- Weather limits your working days significantly
- You have capital to invest and survive slow months
- You want to build an asset you could sell
When to Stay Mobile
- Still building clientele
- Don't have capital reserves (6+ months expenses)
- Your market values convenience over facility
- You prefer flexibility and low overhead
Shop vs. Mobile Comparison
Common Mistakes
→ Build mobile first. Open a shop when you have MORE demand than you can serve, not hoping to create demand.
→ Budget 50% more than you think. Things always cost more and take longer.
→ Location matters for walk-ins and credibility. Saving $500/month on rent isn't worth a bad location.
→ Start with the shortest lease possible (1-2 years). Longer leases only after you know the location works.
→ Verify zoning and permits BEFORE signing anything. Some areas won't allow auto services.
If you're considering a shop, calculate your break-even: fixed costs + your salary ÷ (1 - variable cost %). Can you realistically hit that volume consistently?
Track your current demand carefully. If you're turning away X jobs/month, that's your proof of demand for more capacity.
Start with a shared space or sublease before committing to your own shop. Test the concept with lower risk.
Frequently Asked Questions
How much should I have saved before opening?
6 months of all expenses (rent, payroll, your salary) in cash reserves. Minimum.
Should I buy or lease the building?
Lease initially. Buying is a separate real estate investment decision that adds complexity.
What about working from home/garage?
Check local zoning. Many areas prohibit commercial auto work in residential zones. Even if allowed, it's hard to look professional.
How long until a shop is profitable?
Most shops take 6-18 months to stabilize. Plan for a rough first year.
Plan Your Growth
Detaild helps you track demand and know when you're ready to expand.
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