Item Detail Calculation Tab

The Calculation tab is used to set the parameters for calculating an item's quantity and to identify aspects of the Item that would affect calculations.

The following names refer to the different fields, and their contents, on the Item Detail Calculations tab.

Calculation Method

Use Condition	Determine which condition quantity will be used to calculate the detail quantity. Quantity 1 is selected by default. Use the drop down arrow to change the selection.
Method to use	Standard Formula	Calculates the item quantity by factoring the condition quantity by height, width, depth, OC, layers and waste.
	Enter Direct Quantity	Drops the item into the condition with a zero quantity and allows you to enter the quantity manually.
	Default to Condition Quantity	Causes the item quantity to be the same as the Condition Detail’s quantity.
	Quantity x Height	Calculates the item quantity by factoring the condition quantity by height, OC, layers and waste. (Multiplies item quantity by the height.) You can only use the Quantity x Height method if the Item UOM is EA, IN, LF or LY.
Waste %	Item quantities calculated by the standard formula or Quantity x Height may be modified by specifying a waste percentage.

The settings in this field will determine the number that goes into the Condition Detail Item Detail Area Quantity field.

Formula Descriptions

This area displays the mathematical formulas used to calculate the item quantity (no changes are necessary in this section - it is for reference only).

Condition Detail Default Entries

Section	An entry to assign a CSI section number most commonly associated with this Item. It is a mandatory field that holds unique markup information and indirect costs.
Lab. Cost Code	An entry to assign a Cost Code that represents labor. This is a required field for items with a labor part.
Height	An entry to setup a default height for the Item (leaving it set to zero will allow the Item to use the Condition Details' height).
Repeat every	An entry to set the recurrence of a count object along a vertical line based on height.
On Center (OC)	An entry field to store information for the On Centers (OC) of material that repeats at fixed intervals. The installation method selected shall determine which default field (Height or OC) is available for calculating the material. Continuous Items do not have On Centers.
Rows/Layers	An entry to choose the default number of rows or layers needed to build this Item.

Installation Method

Horizontal	This method ignores height in the formula when a quantity is calculated. When selected, the Condition Detail quantity is divided by the OC default and that result is factored by the layers. If the quantity is to result in either a liner or each UOM, then Horizontal should be selected
Continuous	This method ignores OC when a quantity is calculated. When Continuous is applied, the Condition Detail quantity is multiplied by the height and that result is factored by the layers. If the quantity is to result in a square UOM, then Continuous should be selected.

Selecting both Horizontal and Continuous turns off both Height and OC in the formula. When applied, the Condition Detail quantity is multiplied by the layers default. If the Item quantity is to result in a liner or each value, both Horizontal and Continuous can be selected.

On Center Exception Factors

These entries switch the standard formula to the OC exception formula.

At 16” OC

The waste applied to a calculated quantity can be controlled by exception factors. You may enter different percentages for each OC default setting whereas the Waste % field applies the same percentage to all OC settings. The Exception factor is expressed as decimal value and if applied, the Exception factor will override the Waste%. This field applies to 16” OC values. This is an optional entry.

At 24” OC

Item Detail - Sizing Tab