The Installation Method affects how the Standard Formula is applied during calculations to accommodate different ways that materials can be installed.
Installation Method
The Installation Method you choose determines whether Height, on center, or neither is used when calculating the material.
- Horizontal method ignores the Height value in the formula when a quantity is calculated.
- Continuous method ignores the on center (OC) value in the formula when a quantity is calculated.
Installation Method affects the Standard Formula and Quantity x Height Formula only.
| Method | What happens... |
|---|---|
| Neither Horizontal nor Continuous Checked | The Standard Formula is applied as shown without modification: (Condition Quantity (1, 2, or 3) x Height ÷ OC x Layers + Waste (if applicable)). Examples include metal studs, wood studs, wall covering - any Items that require calculations based on length, height, and OC. |
| Horizontal checked | The formula is modified to ignore Height: (Condition Quantity (1, 2, or 3) ÷ OC x Layers + Waste (if applicable)). Examples: Acoustical Grid, cold-rolled channel, computer room floors - any Items that require calculations base on repetitive OC but where Height is irrelevant. |
| Continuous checked | The formula is modified to ignore the OC value: (Condition Quantity (1, 2, or 3) x Height x Layers + Waste (if applicable)). Examples: wallboard, insulation, stucco applications, painting applications, or any material requiring the quantity calculation to be in SF or SY. |
| Both Horizontal and Continuous checked | Used when neither OC nor Height is relevant to the calculation: (Condition Quantity (1, 2, or 3) x Layers + Waste (if applicable)). Examples: flooring and the labor to install a drywall ceiling - neither horizontal on centers nor Height affect the Item quantity. |
Selecting Horizontal and/or Continuous removes "height" or "on center" from the Standard Formula - it does not replace these variables with "0"; these variables are completed ignored along with the proceeding operator (multiply/divide/add, etc.).
 The Calculations tab: Condition Detail Default Entries | The Calculations tab: On Center Exception Factors  |
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