NOTE-- We retired the BidMagic Material Takeoff
Software in 2001. It has been replaced by Goldenseal Material
Takeoff Software.
We still include this BidMagic estimating software manual
as a convenience for users of our older program. Many features are
similar, in Goldenseal estimating.
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How BidMagic Calculates Material Takeoffs
BidMagic Material Takeoff Software calculates
takeoff lists based on the assemblies for each line item you entered into Specifications (for more
about assemblies, see page 38).
For example, if you entered 2500 square feet of cedar siding into
Specifications, we can follow these steps to see how the takeoff is calculated:
1. Click on any
pop-up button under Siding Materials on the Siding card, and choose Edit Unit Prices. This will take
you to the Unit Price card.
2. Select cedar siding from the list of prices, then click the Assembly button next to the material
unit price. You will see the material assembly that is used for cedar siding.
3. According to the assembly, each square foot of siding requires 2 lineal feet of 8" cedar siding
(with a waste of 8%), plus 0.035 lb of stainless nails (with a waste of 6%).
4. BidMagic multiplies these quantities by the 2500 square feet actually covered by siding, to arrive at
the materials included in the takeoff list. The formula is amount * (1 + waste %) * number of units.
5. Using the formula, there will be 2 * 1.08 * 2500 lineal feet of 8" cedar siding, or 5400 lineal
feet.
6. There will also be .035 * 1.06 * 2500 pounds of stainless nails, or a total of 92.75 pounds.
When BidMagic prepares a material takeoff for the entire bid, it uses the same process for each specifications
item.
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