Since different parts of your project will likely be handled by different contractors or subcontractors, split up your list of materials into those sections. That way, each contractor or subcontractor will know exactly what their costs will be for the project. For example, if you have "framing" and "flooring," they may both need to use the same nails.
This means you need to divide the overall number of nails you estimated between the two. Estimate the labor required to complete each part. Based on the amount of work to be done, determine the number of man-hours it will take to finish.
This should be a conservative estimate since some workers are more efficient than others. A quantity surveyor would usually be able to estimate this off the top of their head, based on their experience with similar projects. Make an initial cost estimate based on the architect's design. Look at the average prices for the materials and labor in your area. You can find out materials prices by checking hardware stores. To learn labor prices, you can talk to contractors in your area who work on similar projects.
Print off a separate copy of the BoQ for your initial cost estimate. This information isn't usually included on the official BoQ you submit to contractors for bids.
Use it to compare bids you get from contractors to find the best bid for your project. Draft a schedule based on the estimates in the BoQ. Once you have labor estimates, it's possible to determine how long it will take to complete your project. Keep this schedule loose to account for things, such as weather, that could cause delays. However, to allow for delays, you're better off planning for it to take 30 to 40 weeks.
Part 2. Start your search for a quantity surveyor early in the project. A quantity surveyor will be a much bigger help to you in the beginning, before you've started work. They help you mitigate risk and give you a better idea of what you're getting into. In addition, having a BoQ from a quantity surveyor keeps your contractors honest and ensures everyone's working from the same page. Most experienced quantity surveyors can make typically make an initial cost estimate based on a rough sketch to help give you a better idea of what you can achieve based on your budget.
Talk to your architect about quantity surveyors. If you worked with an architect on the design of the project, they may have a quantity surveyor they recommend. Many architectural firms routinely use a specific firm for their quantity surveying needs. Ask for recommendations from people who have completed similar projects.
You'll typically get a better estimate if you use a quantity surveyor who has experience working on projects similar to yours in terms of size and scope. Some quantity surveyors specialize in particular types of builds. Quantity surveyors have detailed logs with current and projected costs of building materials, so they can typically find you better rates on some materials than you could if you tried to go it alone.
Check with chartering or licensing agencies. Quantity surveyors typically have to be chartered or licensed by a government regulatory agency. You may also be able to find background information about the quantity surveyor, such as how long they've been licensed and whether any complaints have been filed against them. You can also ask your architect — they should be able to tell you. Interview at least 2 or 3 quantity surveyors.
It's always a good idea to interview 2 or 3 candidates for any role in your project. Then you can hire the best one for the job. Find out how much experience they have doing projects like yours and how those projects turned out. If you can't get a cost estimate for labor from the quantity surveyor, you'll have to rely on the estimates made by the contractors. You also want to look at the size of the firm where the surveyor works. A smaller firm will typically provide more personal service.
Part 3. Decide whether to hire a main contractor or oversee the build yourself. Enable either the quantity surveyor or contract administrator to confirm that individual contractors have submitted bona fide tenders compliant with the tender information, that represent value for money to the client. During the construction period the BOQ can assist the design team by: Helping to determine the agreement of the contract sum with the successful tender Identifying a schedule of rates for individual work items to assist with costing variations Providing the basis of identifying works completed for interim valuations Providing the basis for the preparation of the final account It is important that a BOQ is prepared to a standard methodology recognised by everyone involved in the project to avoid any misunderstandings or ambiguities.
Author Joseph Trainor joetrainor jonesmelling. Ask a question Have you got a question on a property, construction or building matter? Please complete our form below. Kerry joins Chester surveying team 24 Jun BIM software can speed up the tendering process by generating the BOQ automatically, as soon as the design is completed. The BOQ is created when the project design is complete: starting earlier is not efficient, since it would be necessary to update the BOQ with every design change.
Some projects must be tendered with an incomplete design, or a design that still has pending changes. In these cases, the BOQ is called an approximate bill of quantities or a notional bill of quantities. Change orders can be expected in these cases, but the BOQ is still useful to request contractor offers under equal terms. General contractors have the necessary expertise to manage construction projects.
However, a single company will rarely have the technical personnel to complete a project by itself. Instead, the general contractor will normally hire subcontractors for specific areas of the project - HVAC, electrical installations, plumbing, fire protection, etc. Generally, the BOQ also includes a preliminary work section: necessary activities to start the project, which cannot be classified among the categories just described. Some examples of preliminary work are site cleaning and setting up temporary offices.
For remote projects where traveling to the site daily is not feasible, the preliminary works also include building temporary accommodations for the project personnel. Since the items in the BOQ are separated by categories, the document can easily be divided into smaller BOQs for subcontractors.
When the offers from all subcontractors have been received, the general contractor can put them together to complete the bid.
In other words, the BOQ is also useful for the internal tendering carried out by each of the bidding contractors. At Nearby Engineers New York Engineers , we search for simple, eloquent solutions to complex problems.
We minimize construction costs by eliminating the extraneous and focusing on the overall efficiency for the most streamlined designs. Partner with Us Pricing Calculator.
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