MILLWORK / CASEWORK CONTRACTORS

PHASE 6 · INTERIOR FINISHES

Why Millwork / Casework Contractors Fund the Shop for Free

QUICK ANSWER

Millwork and casework contractors fund the shop for free when fabrication happens months before field billing pays for it, hardwood and hardware buys float on the company's line, and field measure changes go to the CNC without a priced change order. CONTROL bills shop milestones, forecasts the buys, and prices every revision first.

BY JOSH LUEBKER · UPDATED JUL 2026 · COMING SOON

Shop vs Field Install Billing

The shop spends the money months before the field earns it. Fabrication milestone billing funds the shop from the project instead of your working capital.

Lead Time Procurement Cash Flow

Hardwood, laminate, and hardware get bought at the start of a long shop cycle. That procurement belongs on the cash forecast the day the PO releases.

Field Measure Change Orders

When field dimensions move, the remake is shop time and material. A change order priced before the file hits the CNC keeps revisions billable.

THE FIX

The CONTROL chapters that solve this for millwork / casework contractors specifically.

CHAPTER 1

Job Cost Structure

Separate cost structures for shop and field work.

CHAPTER 3

Overhead Calculation

An overhead rate that knows the shop from the field.

CHAPTER 6

Project Management Standards

Fabrication milestone billing and revision change orders.

RELATED READING

QUESTIONS MILLWORK / CASEWORK CONTRACTORS ASK

Why do millwork contractors run out of cash before installation?

Millwork contractors run out of cash before installation because the shop consumes material and labor for months while billing waits on field delivery. The lumber, the laminate, and the shop payroll are all paid long before the first casework sets. Fabrication milestone billing moves that funding onto the project where it belongs.

How should a millwork shop separate its costs from field installation?

A millwork shop should run shop production and field installation as separate cost structures, each with its own codes and overhead behavior. Chapter 1 of CONTROL builds the separation and Chapter 3 splits the overhead rate, so shop utilization problems stop hiding inside installation margins.

What profit margin should a millwork or casework contractor target?

A millwork or casework contractor should target 22 to 30% gross profit per project and 12% net profit after all expenses, with overhead between 9 and 13% measured separately for shop and field. A blended rate misprices both sides, and every bid inherits the error.

JOSH LUEBKER

PRESIDENT · SPM THE CONSTRUCTION CFO

Josh Luebker is a former commercial construction project manager and master electrician. He has managed 150+ projects totaling $2.1B+, including Google data centers, military bases, hospitals, and high-rises. CONTROL is built on what works in the field.

Josh leads SPM The Construction CFO (Sulphur Prairie Management, LLC), the fractional CFO for commercial subcontractors.

SPM THE CONSTRUCTION CFO → LINKEDIN →

FIRE ALARM CONTRACTORS

PHASE 5 · MEP

Why Fire Alarm Contractors Get Paid Last in the Building

QUICK ANSWER

Fire alarm contractors get paid last in the building because programming, testing, and the AHJ inspection gate the final billing behind everyone else's punch list. Rescheduled inspections burn tech time for free, and T&M service work blends into lump sum project costs until neither one is measurable. CONTROL separates and prices all of it.

BY JOSH LUEBKER · UPDATED JUL 2026 · COMING SOON

Programming and Commissioning Billing

Panel programming and device commissioning are heavy labor at the end of the job. Their own billing milestones keep that work from riding free on retainage.

AHJ Inspection Delay Recovery

A rescheduled fire marshal visit idles your techs at full cost. Documented delay notices keep repeat mobilizations recoverable.

T&M vs Lump Sum Billing Mix

Service tickets and project contracts carry different margins and different billing rhythms. Blended in one ledger, neither number can be trusted.

THE FIX

The CONTROL chapters that solve this for fire alarm contractors specifically.

CHAPTER 6

Project Management Standards

Commissioning milestones and inspection delay notices.

CHAPTER 1

Job Cost Structure

Cost codes that keep T&M service apart from projects.

CHAPTER 7

Monthly Cadence

A cadence that reviews both books every month.

RELATED READING

QUESTIONS FIRE ALARM CONTRACTORS ASK

Why do fire alarm contractors get paid last on a project?

Fire alarm contractors get paid last because their scope finishes last by design. Programming, device testing, and the AHJ acceptance sit behind every other trade's completion, so the final applications and retainage age while the building opens. Milestone billing terms and documented inspection delays are the counterweight.

How should a fire alarm contractor separate T&M from lump sum work?

A fire alarm contractor should run service T&M and project lump sum work on separate cost structures with separate margin targets. Chapter 1 of CONTROL builds the code structure and Chapter 7 puts both books on a monthly review, so the service department stops hiding inside project margins and the reverse.

What profit margin should a fire alarm contractor target?

A fire alarm contractor should target 22 to 30% gross profit on project work and 12% net profit after all expenses, with overhead between 9 and 13%. Service T&M should run richer than that, and if you cannot see its margin separately, it probably is not.