07/29/2025
Ever Wonder Why Construction Estimates Can Be So Different Between Companies?
You’re not imagining things—contractors and consultants do approach estimating very differently. But it’s not random. It depends on the stage your project is in, the information available, and the tools being used.
At Blanchard Cost Estimating, we specialize in building accurate, well-documented cost reports. However, before we arrive at that final number, we must choose the right approach to estimating for your specific needs.
Here’s a quick breakdown of the most common methods firms use:
🧮 Detailed Unit Cost Estimating
The gold standard for accuracy. This is where we break every trade, material, and task down to the finest detail. Time-consuming, yes—but ideal for final budgets, bid packages, and legal documentation.
📐 Square Footage Estimating
Quick and easy. Often used at the very start of a project to get a rough ballpark based on similar buildings. Not super accurate, but great for early decisions.
🔧 Assemblies Estimating
Think: “the cost per linear foot of pipe” or “cost per square foot of wall.” It bundles related materials and labor together for a balanced view.
📊 Parametric Estimating
This method utilizes historical data—such as “projects of this size and type usually cost $X”—and adjusts accordingly based on known variables.
🧠 Expert Judgment
Sometimes, the best estimates come from the gut of someone who’s seen hundreds of jobs. Especially useful when designs are unclear or constantly changing.
🧩 Hybrid Approaches
Most of the time, we blend methods. We might start with a square-foot estimate, refine it using assemblies, and finalize it with detailed line items before it goes to bid.
💻 Software & Technology
We’re big believers in working smarter. We utilize high-end estimating tools, such as DESTINI and BIM, to enhance accuracy and speed—especially on ROW (right-of-way) parcels and specialty builds.
🔍 Bottom line: Estimating isn’t a one-size-fits-all task. The method chosen depends on the project’s scope, schedule, and what you’re trying to achieve.
💬 Got questions about how we’d approach your next project? Drop us a message or visit our site to learn more.
🔗 https://blanchardcost.com/