How I Learned to Stop Guessing and Start Hiring Sales Reps That Actually Hit Their Number

Look, I'm not proud of this, but I once hired six sales reps for a concrete company based on a gut feeling and a napkin. Six people. Six salaries. Six trucks. And six months later, I had exactly zero additional revenue to show for it. The owner looked at me like I'd just poured a foundation on a swamp. And honestly? I deserved it.

That was year three of my career. Year twenty-five is when I finally figured out the math. So let me save you the embarrassment and the owner's glare.

The Formula That Finally Made Me Look Smart

Here's the thing about hiring sales reps for a concrete contracting company: you don't guess at headcount. You back into it from the gap between where your revenue is and where you want it. The formula is dead simple once you stop overthinking it:

Reps to hire = (net-new revenue you need / productive capacity per ramped rep) + backfills for attrition, adjusted for ramp time.

Work it in order. Start with current revenue and goal revenue. Subtract the growth your existing relationships produce on their own through repeat and referral business. What's left is the net-new number your reps must generate.

Let me give you a real example. Say you're booking $8M a year in commercial and residential concrete work. You want $11M.

Your repeat-and-referral base from general contractors, builders, and past homeowners reliably delivers about 30% of revenue. That base carries roughly $2.4M. That leaves about $2.6M of net-new your reps must close after you net out the goal.

Now, a fully ramped estimator-salesperson closes $900K a year in new flatwork and foundation contracts at realistic attainment. That's about 3 rep-years of capacity. But here's where I screwed up the first time: you have to add ramp.

A new concrete rep needs months to learn takeoffs, mix and finish pricing, and the GC and builder network. And attrition? You'll lose 20% of your team, and you must backfill just to stand still.

Net it out, and you're hiring roughly 4 to 5 reps, started early enough to ramp before the pour season. Not six. Not a napkin number.

The Ten Tools That Finally Made Me Stop Guessing

Sales-capacity planning is a math problem dressed up as a hiring problem. The tools below range from a free purpose-built calculator to enterprise planning platforms. What separates them is how directly they turn your revenue gap, ramp, and attrition into a headcount number.

Flatwork, foundations, decorative concrete, or commercial site work, the model is the same.

1. PULSE Recruiting Calculator 🏆 BEST OVERALL

This is the one I wish I'd had in year three. PULSE's free Recruiting Calculator runs the entire capacity model in your browser. No login, no spreadsheet, headcount plan with start dates in seconds.

You type in the inputs every concrete contractor already knows, and it returns how many reps to hire and when they must start.

Here's exactly what it asks and why each input matters:

Current revenue and goal revenue. The gap between the two is your starting point. The calculator uses it to size the whole plan, whether that growth comes from commercial site work, residential driveways and patios, or decorative and stamped concrete.

Current repeat-and-referral rate and goal rate. In project-based concrete work your retention shows up as repeat business from general contractors and builders plus referrals from past homeowners. This input tells the calculator how much of next year's number your existing relationships produce on their own.

If repeat-and-referral reliably delivers 30% of revenue, your reps only have to sell the remaining gap. Raising that rate through follow-up and account management shrinks the net-new your reps must carry.

Productive capacity per rep. What a fully ramped estimator-salesperson realistically books in a year at normal attainment. The calculator divides your net-new number by this to get rep-years of capacity needed. In concrete, capacity is tied to job size, bid win rate, and how many takeoffs a rep can turn around per week.

Ramp-up time and training length. A rep hired today is not productive for the first few months while they learn concrete takeoffs, mix and finish pricing, square-foot and cubic-yard math, and the GC and builder relationships that drive deals. The calculator discounts a new hire's first-year contribution by the ramp, which is why you always hire more bodies than a naive "gap divided by quota" would suggest.

Current headcount and attrition. Apply your turnover rate to your current team and the calculator adds the backfills you need just to hold serve. Lose one of four reps and that hire is replacing a person, not adding capacity.

Put those in and it outputs a clean reps-to-hire number with start dates, so you can hand it to your recruiter or your board. Best for: owners, sales managers, and lead estimators at concrete firms who want a defensible headcount plan in minutes without building a model from scratch.

2. Procore

Procore is the dominant construction-management platform, sold by quote (priced on construction volume, commonly five figures a year). It won't hand you a hire number, but it holds the project, bid, and revenue actuals the calculation needs—won-and-lost bids, contract value, and pipeline by salesperson.

With its data you can model coverage against your concrete-contract growth targets. Best for larger concrete firms that want the headcount plan living next to the project and bid data it depends on.

3. Salesforce

Salesforce is the CRM many growing contractors run for their sales pipeline, with pricing from about $25 per user per month (Starter) to $165-plus (Enterprise) before add-ons. With its reporting and forecasting you can model quota coverage against pipeline and attainment for your estimating-and-sales reps.

It supplies the actuals—attainment, ramp, win rate—the calculation needs rather than spitting out a hire number. Best for firms that want the plan living next to the bid pipeline it depends on.

4. HubSpot Sales Hub

HubSpot Sales Hub, from about $20 per seat per month up to enterprise tiers, gives growing contractor sales teams forecasting, deal tracking, and attainment data plus planning tools to size coverage against goals. Like Salesforce, it supplies the actuals the capacity model needs rather than handing you a hire number directly.

For concrete firms already on HubSpot for marketing, building the plan on its data keeps everything in one system. Best for smaller and mid-market contractors standardized on HubSpot.

5. STACK Takeoff and Estimating

STACK is a cloud takeoff-and-estimating tool widely used in concrete and site work, with paid plans commonly from around $2,000 per year per seat. Because it ties proposals to real material and labor costs, it grounds the productive-capacity input in true job value and win rate rather than a paper number.

You still bring the revenue gap and ramp assumptions, but it anchors per-rep capacity to real bid economics. A strong fit for concrete firms that want capacity planning tied to actual job economics.

The Bottom Line

The next time someone hands you a napkin with a headcount number on it, smile politely, thank them, and then go run the actual math. Your owner will thank you. Your bank account will thank you. And your concrete crew will thank you for not hiring six people who spend all day bumping into each other in the break room.

If you want to skip the napkin entirely, the PULSE calculator is free and built by someone who's been exactly where you are. Go punch in your numbers, get your start dates, and pour that foundation on something solid.

*P.S. If this clicked for you, I write about revenue math for contractors at CRO Syndicate. No fluff, just the numbers that actually move the needle.*

*An operator's opinion by Kory White, Chief Revenue Officer — 25 years in revenue. More at PULSE · CRO Syndicate*