30-story building built in 15 days

The Chinese sustainable building company, Broad Group, has yet attempted another impossible feat, building a 30-story tall hotel prototype in 360 hours, after building a 15-story building in a week earlier in 2011.

You may ask why in a hurry, and is it safe? The statistics in the video can put you in good faith. Prefabricated modular buildings has many advantages over conventional buildings.

The building was built over last Christmas time and finished before New Years Eve of 2012.

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Published By

Arka Roy

www.quantity-takeoff.com

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70% Global Construction Growth Expected by 2025

Based on the research and analysis by Global Construction Perspectives and Oxford Economics, the world’s largest construction markets rank in the year 2025 are expected to be China, U.S., India, Japan, Indonesia and Russia.

This report, sponsored by Aconex, estimates that the construction volume all over the globe will grow up to $15.0 trillion in 2025, as the industry’s contribution to the worldwide gross domestic product (GDP) increases from 12.2% to 13.5%.

Global Construction 2025 considers construction markets in 46 countries that create 85% of world output. It is a precise report with 328 pages including 683 charts and tables, besides the executive summary offers a comprehensive overview in a quick read.

The regional forecasts of the report reflect the trends seen in the business scenario over the years. As per the report China, India and the U.S. are the three countries that will be accountable for 60% growth from 2012 to 2025, with China being responsible for more than 25% of the global volume. India is expected to grow faster than China, overtaking Japan for the third position. By 2025, the report predicts, Indonesia will grow annually by 6% to attain the position of world’s fifth largest market. Australia is forecasted to expand at 1% annually as the mining activity shifts from infrastructure development to production.

The North American market is also supposed to grow by about 40%, representing a rebound of construction in the U.S. as well as the improved infrastructure and oil & gas related building in Canada. The Western Europe is supposed to contract by almost 5% from its peak in 2007, with the U.K. as the only area of growth, at more than twice the average for the complete region. The Eastern Europe as well is said to grow by almost 5% on an annual basis, driven by Turkey and Russia. Besides, Russia is supposed to become the world’s sixth largest market. The report projects, Qatar and Nigeria as the world’s fastest growing construction markets for 2025 with a growth of 10% and 8% per year, respectively.

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Published By

Tuhin Maity

www.quantity-takeoff.com

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How to estimate the cost of Material

Material Pricing 

The price of the materials is calculated in two different methods :-

        • Lump Sum
It is a process to supply all the Materials in a group. As for instance a steel supplier may propose to provide all of the structural steel, steel Joists and roof deck for an approved price.

        • Unit Price
It is a system provided by the supplier to supply the materials at a price per unit.

A ready mix concrete supplier may recommend to deliver 3000 psi concrete to the project for a price of RM 110 per cubic yard.

Quantity TakeOff 

It is a procedure to find out the required construction quantities. It can be segregated into :-

        • Forecasting of the quantities of work
        • Working out of the prices related to those quantities

Quantity TakeOff Procedures :-

Classification of work item– for instance : Brick wall section or concrete footing.

Estimation of quantity varying from linear, area, volume and unit.

After calculating the material take‐off, estimator can gather brief knowledge on the actual field procedure. Concrete take‐off will commence from volume for footings, grade beams, slabs and slabs for ground floor etc.

Generally quantity quantity take‐off is performed by the application of forms. In order to regulate the worksheets, provide accurately allocated areas in which proper information is to be submitted facilitating follow-up for smooth evaluation.

Pricing Materials

It is a system for allocating a RM value for a work item following a projected specification and prearranged A process quantity needed.

          • After completion of quantifying of materials, the calculation of cost of materials should be started.

          • The pricing of each work item should consist of the individual subcomponents :-

                   Procurement of permanent and temporary materials
                   Labor needed for setting up the materials
                   Equipment necessary for shifting and installing materials
                   Other consumables, eg. Fuel and tools Material costs

• In general, the amount of purchase = the unit price, which is recognized as quantity discount.

Freight cost should be taken into consideration and included in the direct cost of the materials. This is very important if the site location is very distant from nearby suppliers.

Other concerns for material procurement:

           – Quantity discount
           – Interest rate
           – Escalation
           – Holding cost
           – Credit facility
           – Allowance for method of measurement of the bill item

Material Pricing basis

• Resources of pricing information:

            Published resources – Building Cost Indices
            Company Cost records – an in-house record of accurate documenting and compiling company      cost from earlier jobs
            Vendor catalogues and quotations – prices are acquired directly from vendors from catalogues or indirect inquiries.

While Upon assembling prices from vendor, the following points must be taken into consideration:

            Payment requirements – cash, credit, credit term
            Delivery charges
            Lead time, product availability
            Price guarantee
            Quantity discount information
            Price rises clause

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Posted By Rajib Dey
Content Writer
www.quantity-takeoff.com (A well know overseas company for construction estimating)

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