The Estimating Process & Takeoffs

Welcome

Hello, and welcome. This is Super Structures General Contractors — a national general contractor headquartered in Powhatan, Virginia — here to help you and your clients build something that lasts. We're glad you're with us, and we look forward to connecting with you.

Here's one that matters more than its name lets on — The Estimating Process & Takeoffs. Bottom line — write this one down: A good estimate starts with an accurate takeoff and real, current pricing — guessing is how you bleed. Get comfortable here and the rest of this trade gets a whole lot less intimidating.

An estimate is a prediction of cost — and your whole business rides on getting it close.

The process

1. Review the documents — plans, specs, and scope.
2. Quantity takeoff — measure the quantities of work from the drawings (square feet, linear feet, cubic yards, counts).
3. Price it — apply costs for labor, material, equipment, and subcontractors.
4. Add overhead and profit (next lesson).

Make the takeoff accurate

• Use current pricing and real subcontractor/supplier quotes — not last year's guesses.
• Lean on your historical job-cost data (this is why job costing matters).
• Double-check units and quantities — a takeoff error multiplies through the whole bid.

Going Deeper (Intermediate)

A reliable estimate follows a repeatable process, not gut feel:

1. Review the documents and do a bid/no-bid decision.
2. Takeoff quantities system by system.
3. Price: material (current quotes), labor (hours × burdened rate), equipment, and subs.
4. Add overhead and profit.
5. Review for scope gaps before it goes out.

Advanced / Pro-Level

What makes estimates accurate over time:

• Production rates / labor units — man-hours per unit of work (e.g., 0.015 mh/SF of drywall) built from your historical job-cost data. This is the estimator's gold.
• Assemblies & unit pricing speed up takeoff and reduce misses.
• Accuracy levels: a conceptual/ROM estimate (±25%) vs. a detailed hard-bid estimate (±5%) — know which you're giving.
• Contingency sized to risk (vague scope, new client, tight schedule), not a flat guess.
• Garbage in, garbage out: the closed loop with job costing is what sharpens every future bid.

Practice Challenge

You can hang drywall at 0.015 man-hours/SF. For 10,000 SF at a $33 burdened rate, what's the labor estimate? (Answer: 10,000 × 0.015 = 150 mh; × $33 = $4,950 labor — production rates from real data beat guessing every time.)

In Practice

An estimator eyeballs quantities instead of doing a real takeoff — and the bid comes in 15% short. Measuring from the drawings and using current pricing is what makes an estimate close.

Common Mistakes to Avoid

• Guessing quantities instead of a real takeoff
• Using stale pricing
• Not getting real sub/supplier quotes

Takeaway: A good estimate starts with an accurate takeoff and real, current pricing — guessing is how you bleed.

Educational content — not legal, financial, or accounting advice. Run your numbers with your CPA.