What are the best practices and standards for preparing and presenting construction estimates?

Whether you have completed construction documents or a single page sketch on a paper placemat, as an Estimator you need to be able to visualize what the completed project will look like. When approaching the building, what do you see - materials, colors, etc. When you walk into a room, what do you see on the walls, the floor, the ceiling, etc. If the documents aren't yet complete, you'll want to have a systematic method for asking questions to confirm what the scope is. Don't waste everyone's time preparing an estimate for something the client doesn't want.

It is must to understand the scope of project, for that estimator should asked to client for complete documents included specifications. As specifications will guide you to approach required model, manufacturer, color and quality of material. Due to that you can get accurate price of the materials & calculate the labor cost. That's how it is very important to understand the scope of project. Even some detailing are missed in project section, but estimator should have expert to do takeoffs and pricing for such portions. And it is only possible with the understanding of scope.

Une fois que vous commencez à examiner le projet, il est crucial de préciser clairement l'objectif à atteindre, en collaboration étroite avec tous les intervenants. Notez soigneusement les contradictions et les anomalies rencontrées lors de votre analyse technique et logique, demandez des éclaircissements au propriétaire concernant ces points pour bien comprendre la méthode et le processus d'exécution. Cela permettra de proposer un co?t compétitif et aligné avec les besoins spécifiques, tout en tenant compte de leur dimension concurrentielle.

Prior to commencing the estimation process, a comprehensive understanding of the project's scope and specifications is imperative. This involves a thorough examination and analysis of drawings, plans, contracts, and other documents that intricately outline the project's requirements, objectives, and expectations. Additionally, it is crucial to identify any assumptions, exclusions, contingencies, or potential risks that might impact the estimation. A meticulous comprehension of the project's scope and specifications serves as a preventive measure against oversights, duplications, errors, and potential disputes in the later stages of the project. This preparatory phase ensures a more accurate and reliable estimate, laying the foundations.

Je crois avant la préparation du devis,il faut envisager le type d'estimation.Car il en existe deux, l'estimation approximative et détaillée.

Quantity surveying/ estimating in old years is very difficult, as you spent a couple of months on a project. Sometimes you got late from submission. Actually it was due to method of calculations as in old age estimator used different scales, pencils, counting watches and made model projects. But in this modern age estimating is emerging as a best method of calculating the bid budget. That how estimating is the 1st step in pre-construction. Now estimator can do materials and quantities takeoffs via software like Planswift, Bluebeam, OST, Stack Estimating etc. Beside that it is easy to get materials and labor rates using RSMean, Engineer Estimate sites. Even the earthwork guy can easily calculate the cuts and fills via EarthWork Pro.

Create a mix between paid and free tools to create your best estimating method and swim across drawings considering details and take your notes. Methods can vary depending on the trade.

Value engineering and life cycle costing are critical for sustainable construction practices. By focusing on long-term cost benefits rather than just initial capital expenditure, projects can achieve greater efficiency and environmental stewardship. These strategies not only reduce the immediate financial burden but also align with the growing industry trend towards green building standards and responsible resource management, which can lead to significant savings and enhanced marketability over the lifespan of a facility.

One often can easily get confused with "Value Adding Design considerations, with Value Engineering. Value Adding Design Considerations aims to improve Operational functionality(Quality, Safety & performance. The end user is generally more interested in this aspect. Value Engineering embraces the above, but specifically focusses on Financial cost savings to a project. Very seldom the scope of a project takes into account the whole life cost. (Maintenance, Item end of life/replacement, etc.) The importance of understanding who will be revieing your submittal is of significant importance to what you say and how you say it

Value Engineering, Life Cycle Costing and Minimun Viable Product are great techniques you can consider if your scope allows them to apply.

The key is a well-drafted, concise "Basis of Estimate" document that clearly defines the documents used to create the estimate, what is included, what is excluded, the assumptions made, and the benchmarks used. Far too often, people focus on the Bottom Line value and overlook that the estimate is a tool for making well-informed decisions. Without understanding the number in detail, there's a high risk of making poor decisions based on misinterpreted numbers. A thorough Basis of Estimate ensures clarity and reduces the chance of errors.

Having historical data helps validating your estimate. As an experienced estimator, one would have data on typical cost/sf of renovations, new construction, cost/ fixtures that you could refer to. Additionally, I strongly suggest implementing a QA/QC checklist that includes items such as verifying the math to ensure the numbers add up(especially if you are working in excel) and reviewing headers/footers. While some of these elements may not have a direct impact on your estimate, they contribute to delivering a high-quality product to your client.

In the construction industry, the accuracy of an estimate can make or break a project's financial success. Reviewing and validating estimates is not just about checking numbers; it's about risk management. By incorporating peer reviews and leveraging historical data, estimators can mitigate potential cost overruns. Furthermore, the advent of digital tools and BIM technology has revolutionized estimating, allowing for more dynamic and precise models that can be adjusted as project specifications evolve. This practice is crucial for maintaining competitiveness and ensuring project viability in the ever-changing construction landscape.

A construction cost estimate is not just a number; it's a crucial data set for informed decision-making. It serves clients, stakeholders, and team members by providing a clear picture of current costs, fostering transparency, and guiding successful project decisions. Effective presentation is key, ensuring everyone understands the included elements, exclusions, assumptions, risks, and the significance of the numbers. This transparent communication is vital for collaborative project management, aligning diverse perspectives and adapting to changes. In essence, the estimate is more than a static figure; it's a dynamic tool that shapes and reflects the project's financial narrative, contributing to overall project success.

Incorporate a "Basis of Estimate" section in your Final Estimate, outlining the drawings and specifications used during the estimate preparation. Particularly in the design phase, when drawings undergo multiple iterations, it is crucial for us as estimators to specify the set of drawings on which we base our estimate. Also list your exclusions. Items such as hazmat, permits, utility costs, and contaminated soil, among others, may not even be on the owner/client's radar. By itemizing these, you not only make it clear that uncertain items have been excluded, but also draw their attention to the necessity of examining them from a cost perspective. If you have made assumptions, this is the sheet where you would want to list those as well.

Professional presentation of construction estimates is not just about aesthetics; it's about clarity and credibility. A well-structured report facilitates decision-making and demonstrates the estimator's attention to detail and understanding of the project. Including visual aids like charts and graphs can significantly enhance comprehension. It's also crucial to be prepared to defend your estimates and address queries, which reflects your expertise and instills confidence in stakeholders. As construction projects grow in complexity, the ability to articulate and justify every aspect of an estimate becomes increasingly vital.

Depending on who you are presenting your estimate to should also factor in the type of proposal you write. What were the objectives in the RFP ? Proposals should illustrate your understanding of the project as well as answer the RFP as closely as possible. The best proposals will outline items of concern in the construction documents and a proposed solution. Lead times /schedules can be introduced at this time also. Value engineering ideas can also be listed but should be very clear on the alternate solution and benefits to the client. Is VE solely cost based, lead times, improved warranty, an easier installation etc ?

Une fois que vous commencez à examiner le projet, il est crucial de préciser clairement l'objectif à atteindre, en collaboration étroite avec tous les intervenants. Notez soigneusement les contradictions et les anomalies rencontrées lors de votre analyse technique et logique, demandez des éclaircissements au propriétaire concernant ces points pour bien comprendre la méthode et le processus d'exécution. Cela permettra de proposer un co?t compétitif et aligné avec les besoins spécifiques, tout en tenant compte de leur dimension concurrentielle.