Construction Estimating and Bidding
Prepare a cost estimate for the metal components of the building.
- You are to takeoff all beams and joists. Add 10% to your total for connections.
The two main items are I-beams and open web steel joists (metal joists, bar joists). Both are taken off in terms of tons. For the I-beams use the following unit costs:
| Code | Item | Unit | Material | Labor | Equipment |
| 051223.770700 | Structural Steel I-Beam | ton | $2,050.00 | $315.00 | $161.00 |
For the bar joists, you will need to first determine what type of joists are specified and then use a manufacturer’s guide to determine the pounds per foot for each type. Use the following unit cost for the specified joists:
| Code | Item | Unit | Material | Labor | Equipment |
| 052119.100440 | Bar Joists | ton | $1,400.00 | $192.00 | $105.00 |
Also, assume the roof is manufactured pre-painted standing seam roof. The unit cost is:
| Code | Item | Unit | Material | Labor | Equipment |
| 053123.503100 | Roof Deck | sf | $2.28 | $0.32 | $0.03 |
Be sure to show your work by using the Structural Steel Materials List on the second page (or re-creating a similar table in excel, etc.)
Your final answers should be provide in the quantity takeoff sheet on page 3 (or re-creating a similar QTO table in excel)