VT R&D Foundation Estimating Spreadsheets

In class, we were given the assignment of taking off the Virginia Tech Research and Development Foundation's concrete foundation. Take-offs are completed by calculating the amount of each of the materials that are involved in the construction of a building. In this case, that would be the amount of materials in the concrete foundation system. After doing the take-off, we were given the task of using RS Means to assign unit costs and assembly costs to this take-off. The following spreadsheets are the results of my analysis of the building plans and of my searching through RS Means for materials.


Unit Cost Estimate
This spreadsheet shows the unit costs for the materials, equipment, and labor of the VT R&D Foundation's concrete system. For each aspect of the building to be included, the spreadsheet shows the crew to be used and how much work that crew can produce in a day. The amount of the material is given, along with the unit (such as Linear Feet, Cubic Yards, Each, etc.) the material is sold in. These factors, along with the given prices for material, labor, and equipment, are used to calculate total prices for each material. Overhead and profit are also given in the table. The total prices for the items with and without overhead and profit, as well as the final price for the building, is given at the bottom of the spreadsheet.


Assembly Cost Estimate
This spreadsheet shows the assembly costs of the R&D building. This is a much simpler spreadsheet to follow because it is not made up of single materials, but instead it is made up of different parts of the building, such as the entire slab on grade or footing systems. The assembly cost estimate is made up of material and installation costs, which is different from the unit cost estimate.

Construction Site Visit #1

The following pictures are of construction and work being performed on New Residence Hall West on the campus of Virginia Tech, located between Cochrane Hall, Harper Hall, and Student Services. It will be opened to students living on campus at the beginning of the 2009-2010 school year.

On this day, the majority of the work being performed involved cutting and shaping Hokie Stone, caulking gaps between windows and the exterior walls, and filling the gaps between the Hokie Stone with mortar.

Picture 1

Picture 1 shows the side of the building where the mortar is being filled in. It can be seen on the second level of scaffolding from the top. Buckets of mortar are lifted up by a crane (not pictured) and placed on the scaffolding for workers to use.

Picture 2

Picture 2 shows a man on a Genie telescopic boom lift caulking a gap between a window and the exterior wall. Since the man is at an elevated position, he must wear a safety harness, which is connected to the lift, to protect himself from a fall.

Picture 3

Picture 4

Pictures 3 and 4 above are of two men working with Hokie Stone. It can be seen in the Picture 3 that the man moving the stone is not wearing a hard hat or safety glasses, but has at least remembered his ear protection. The other man is measuring the stone to make sure he chips it to an acceptable size. In Picture 4, Hokie Stone being cut with a stone cutting table saw and then being chipped to size with a chisel and hammer.

Wall Assembly - Brick on Stud Wall

http://www.henry.com/fileadmin/images/building_systems/BES/air_and_vapor/non_permeable/BuildingSystems-NonVapor_07.gif

Materials included:
Gypsum Board
Vapor Barrier
Metal Studs
Insulation
Brick
Mortar
Flashing
Primer

Class Attendence

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