If you only remember one thing from this piece, let it be this: numbers are the language of business. When you can read them fluently, you stop chasing jobs to “feed the boys” and start choosing projects that fund your life.

In a recent conversation on The Good Builder Podcast, Marti Amos from The Professional Builder put it plainly. Most builders are excellent at building projects. Far fewer are trained to build a business. The fix is not a motivational poster. It is a simple, disciplined grip on margin, cash flow, and the handful of ratios that decide whether your bank balance rises or flat-lines.

This is your practical guide to margin mastery, written for busy builders who want less stress, more control, and a business that buys back their time.

Why chasing volume keeps you stuck

When the phone is ringing, it is tempting to price to “win the job” and sort the rest out on site. That strategy feels proactive, but it quietly loads the business with risk.

• Thin margins magnify mistakes. Material rises, labour blowouts, missed variations. With little gross profit to absorb shocks, small errors become sleepless nights.
• More jobs do not mean more profit. At low margins, the only way to hit a revenue target is to increase the number of jobs. That lifts supervision load, admin, rework, and warranty risk.
• Cash flow whiplash. If you are winning on price rather than value, you tend to carry more jobs for longer at weaker terms. Cash in, cash out becomes unpredictable.

The escape route is not working harder. It is pricing smarter and refusing to start any job until you know what the numbers will do to your business.

Margin versus markup and why the difference pays for your holidays

Marti’s rule of thumb is simple. Always reverse engineer your target gross margin first, then calculate the price. Here is the cleanest way to see it.

• Costs to deliver the job: materials, labour, subcontractors.
• Markup: the amount added on top of costs.
• Gross margin: gross profit divided by the final price.

A quick example.

• Costs total: $800,000
• Target gross margin: 20 percent
• Reverse engineered price: $1,000,000
• Gross profit: $200,000
• Markup on costs: $200,000 ÷ $800,000 = 25 percent

That last line is the trap for young players. Twenty percent margin equals twenty five percent markup. If you aim at twenty and accidentally price at twenty percent markup, your achieved margin is only about sixteen point seven percent. On a million dollar job, that “small” slip is tens of thousands of dollars you intended to keep.

Takeaway: set the price to hit a margin, not the other way round.

The golden ratios every builder needs on the wall

Marti calls these the Bible for building companies. They are not fancy. They are non-negotiable.

1. Gross margin at least 20 percent
   This covers overheads and still leaves real profit. For custom or complex work, target higher.
2. Overheads (including a market rate salary for the owner operator) between 8 and 12 percent
   Pay yourself in the P and L like you would pay a competent project manager. Put the Ford Ranger in the right spot. Treat it like a business, not a hobby.
3. Net profit at least 10 percent
   That is the premium for all the risk you carry. Below ten, you are working too hard for too little.

If your business is not sitting near these markers, the problem is rarely “the market.” It is more often pricing discipline, scope control, and the speed you turn information into action.

The workload maths that explains why you feel so busy

Here is the part most builders never see written down. Margin controls how many jobs you must run just to stand still.

Imagine your average job value is $250,000 and you want to bill $2 million this year.

• At 25 percent margin, you need 8 jobs.
• At 20 percent margin, you need 10 jobs.
• At 15 percent margin, you need 15 jobs.

The drop from twenty five to fifteen percent margin increases your job load by almost double. Every extra project adds site visits, client meetings, procurement, supervision, and defect risk. It is why some builders feel like they are sprinting on a treadmill. The issue is not effort. It is economics.

Takeaway: lift margin and you reduce job count. Fewer jobs, better run, usually means a calmer team and happier clients — and more profit.

Make the numbers visible, then manage them

Numbers are only useful if you can see them quickly and act on them. Marti’s model joins accounting software to a live reporting pack so owners and coaches can make decisions from facts, not feelings. You do not need the same software to copy the principle:

• Produce a monthly financial dashboard that shows margin, overhead, net profit, cash at bank, work in progress, and variance to forecast.
• Back-cost in real time. Foremen and project managers should know each week where labour hours and key trades sit versus budget. If cladding was allowed one hundred hours and you are at sixty five by half way, you have a conversation now, not after handover.
• Forecast cash flow at least ninety days ahead. Pair that with a rolling pipeline view so sales, operations, and finance are working off one reality.

What you measure, you manage. What you hide, you repeat.

Price for margin the same way every time

Builders who price consistently protect margin consistently. A simple, repeatable method helps everyone.

1. Set the target gross margin for the job type before you touch a spreadsheet.
2. Build the costs with realistic labour productivity and current supplier quotes.
3. Add P and G and overhead recovery properly. Do not sprinkle it. State it.
4. Reverse engineer the final price to hit the target margin.
5. Stress-test the price for likely risks, then present it with confidence.

Confidence matters. Clients can feel when a builder understands their numbers and can explain value clearly. That is how you stop competing on price and start winning on trust.

Win back time with your Professional Builder’s Rate

Cash is one fuel. Time is the other. Marti uses a neat tool to show owners where to reclaim hours.

• Add your salary and your company profit from last year.
• Divide by 52 to get weekly income.
• Divide by your true weekly hours.
• That is your Professional Builder’s Rate.

If it works out at one hundred dollars an hour, any task worth less than that should be stopped, automated, or delegated within thirty days. That becomes the starter list for your next hire. Buy back one day a week every quarter and use that time to build systems, improve pricing, and market properly. That is how builders move from treadmill to traction.

Five levers to lift margin this quarter

You do not have to rebuild the business to move the needle. Start with small wins that stick.

1. Tighten scope and selections before contract. Loose scopes kill margin through slippage and disputes.
2. Charge for quotes or pre-construction on complex work. Paid time equals better briefs and fewer ghost quotes.
3. Involve the foreman in pricing. The person responsible for the build will spot productivity traps early.
4. Capture every variation fast, with client sign-off before work continues. Train the team. Inspect what you expect.
5. Lift your average job value with better fit clients. A clearer niche plus stronger front-end sales process often does more than a year of “marketing.”
   

The mindset shift that unlocks the numbers

Technical fixes are half the story. The other half is identity. Many builders carry quiet beliefs that block progress.

• “My market will not pay that.”
• “If I leave site, it all turns to custard.”
• “I cannot find good staff.”

Truthfully, you can charge properly if you communicate value and deliver predictably. You can step out of site if you write clear scorecards and train people to hit them. You can attract better applicants when your business looks like a place where good people win. The shift is choosing to run a building business rather than live inside a busy job.

A simple checklist to start today

• Write your golden ratios on the whiteboard. Gross margin target. Overhead band. Net profit goal.
• Build a one page dashboard and meet on it monthly. No exceptions.
• Standardise your margin-first pricing workflow. Make it boring and repeatable.
• Calculate your Professional Builder’s Rate and create a thirty day stop, automate, delegate list.
• Choose one margin lever from the list above and implement it fully before you pick another.

Do these five things and you will feel the business relent. Bank balance steadier. Fewer jobs, better run. More choices about how you spend your time.

The bottom line

Freedom does not arrive when you hit some magic revenue number. It arrives when every job is priced to a clear target margin, when the team knows their role in protecting it, and when you review results in real time so problems stay small.

That is “margin before motion.” Get the numbers right. Then get moving.

Author: TGB Editorial