Almost every estimator has used RSMeans data, and almost every estimator has been burned by using it carelessly. The data is respected because it is organized, documented and updated. It is also easy to misuse, because a unit cost in a database is a published average for a specific year and place, not the price you will pay on your next job.
This guide explains what RSMeans is, how the different kinds of cost data work, how construction cost indexes adjust for location and time, how to use square-foot estimating properly, and how to validate any cost data before you rely on it. We do not reproduce database content, which is licensed. We explain how to use it correctly. Our earlier article, RSMeans pricing explained for contractors, covers pricing mechanics, and this one widens the view to cost research in general.
What Is RSMeans?
RSMeans (often searched as RS Means or Means) is a widely used source of construction cost data published by Gordian. It is organized by CSI MasterFormat divisions and provides costs for materials, labor and equipment, along with productivity information. Users encounter it in print books, in online subscription tools and inside some estimating software.
When people search for RSMeans construction cost data or RS Means cost estimating, they are typically looking for one of these data types:
| Data type | What it gives you | Best used for |
|---|---|---|
| Unit cost data | A cost per unit of work, such as per square foot or cubic yard | Detailed estimates and bids |
| Assembly cost data | The cost of a combined system, such as a wall or floor assembly | Faster, design-stage estimates |
| Square-foot cost data | Cost per square foot by building type | Early budgets and feasibility |
| Location factors (city cost indexes) | Multipliers to adapt national averages to a city or area | Pricing in a specific market |
| Historical cost indexes | Multipliers that scale costs from one year to another | Escalating old data to today |
Bare Costs, Overhead and Profit
A detail that trips people up: unit cost listings commonly show a bare cost and a total that includes the contractor’s overhead and profit. If you add your own markup on top of a figure that already includes it, you double-count. Before using any line, confirm which version you are looking at and what the listed labor and equipment rates assume, such as crew composition and wage basis.
Cost Indexes: Adjusting for Location and Time
A RSMeans construction cost index or location factor exists because a national average is rarely right for a specific place. There are two adjustments to understand.
- Location adjustment. Adjusted cost = base cost x (local location factor ÷ base location factor). Many databases set the national average to 1.00, which simplifies this to base cost x local factor.
- Time adjustment. Adjusted cost = old cost x (current index ÷ index for the old date). This brings an earlier project cost up to current dollars.
For an illustration of the arithmetic only: a $200 base cost with a location factor of 1.10 becomes $220. If a cost from an earlier year is scaled with an index that has risen from 100 to 120, the cost is multiplied by 1.20. These numbers are invented for the example, and real values must come from the current index you are licensed to use. Our post on square-foot cost calculators and ZIP code adjustments applies the same method to budgets.
Square-Foot Estimating With Cost Data
A RSMeans square foot estimator approach uses published costs per square foot for building types, then applies size, quality and location adjustments. It is a good tool for preliminary budgets and a poor tool for bids. Use it when drawings are not complete, state the assumptions behind it, and replace it with a measured estimate as soon as documents allow. See our guide to estimating construction costs for how preliminary and detailed estimates differ.
How to Validate Cost Data Before Using It
Run every cost source through the same checklist, whether it is RSMeans, another database or a spreadsheet you inherited.
- Check the date. What year is the data, and how far has the market moved since?
- Check the location. Is it a national average or a local figure? Apply the right location factor.
- Check the scope. Does the line include everything you need, such as formwork, finishing, fasteners and accessories?
- Check the units. Square feet versus square yards, linear feet versus each, installed versus supply only.
- Check the labor basis. Union or open shop, prevailing wage, crew size and productivity assumptions.
- Check overhead and profit. Is it included or excluded?
- Compare against a live quote. Ask a supplier or subcontractor to price a few key items, then compare.
When published data and a current quote disagree sharply, trust the quote and investigate the gap.
RSMeans Login, Licensing and the Free Download Trap
Many searches, such as RSMeans login and RS Means login, come from subscribers looking for the online portal. Access is through Gordian’s official site with a licensed account, so use the vendor’s own page rather than a link from a search result you do not recognize.
Searches for an RSMeans building construction cost data PDF free download deserve a warning. The data is a licensed commercial product. Files offered as free downloads are typically unauthorized copies, may be outdated, may be incomplete, and can carry malware. Using them also exposes your company to licensing problems and bases a bid on data you cannot verify. If cost, not access, is the issue, see the alternatives below.
Alternatives and Supplements to RSMeans
Searches for a construction cost database free or a construction cost estimating database reflect a wish for cheaper options. Realistic choices include:
- Your own historical costs. Completed job costs, in your market, with your crews, are often the most accurate source you have.
- Supplier and subcontractor quotes. Current and local, and the most reliable for materials and subcontracted work.
- Other published guides and software. Craftsman’s National Estimator, also searched as national estimator or national estimator cloud, is a long-running alternative, and other publishers sell regional cost guides. Verify current editions and features.
- Public data for cross-checks. Government price indexes for construction inputs and prevailing wage determinations help you test material trends and labor assumptions. They are not unit-cost databases.
- Estimating software with built-in pricing. Some tools bundle cost data. Compare them in our construction estimating software guide.
We list more no-cost options and their limits in our guide to free estimating and takeoff software, including what to expect when searching for free construction cost data.
A Construction Price List or Price Guide: Use With Care
A construction price list or construction price guide is a snapshot. It helps you sanity-check a number or build a rough budget. It cannot account for your site, your supplier relationships or the scope of your drawings. Pair it with a measured takeoff, a current local adjustment and a review of the specifications. Our common construction estimating mistakes article lists several errors that come from trusting generic pricing too much.
FAQs
What is RSMeans used for?
Contractors, owners and consultants use it to price construction work, build preliminary budgets, and adjust costs for location and time. It is a reference, and it needs validation against current local conditions.
How do I adjust RSMeans costs for my location?
Apply the location factor for your area to the base cost, as long as you are using a current licensed index. Then compare key items to live quotes.
Is RSMeans accurate?
It is a well-documented average, which makes it a strong starting point. Its accuracy for a specific job depends on the date, the location, the scope and how it is adjusted.
Is there a free version of RSMeans?
The full database is a paid, licensed product. Free copies circulating online are unauthorized and unreliable. Consider your own cost history, quotes and lower-cost alternatives instead.
Need Estimates Built on Current Local Data?
Our estimators combine licensed cost data, current supplier pricing and your project location. Send us your plans, or read about our cost estimation and estimating fees.