Part Size Calculations

A part is assigned a size from a set of formulas called part use conventions (or "part use" for short). These are meant to represent different ways the part may be used in the component. Each part use returns a value calculated using attributes of the component.

Components have three dimensions: width, height, and depth. Each part

Example

For example, a Head component might have the following parts configured:

• 1 stick of head framing, sized by the Daylight Width part use

• 4 fabrication screws, assigned the Per Component part use

• 2 lengths of butyl tape 3/8" x 1/8", sized by the Component Face Dimension part use

If the elevation drawing contains a Head component that is 30" long with a face dimension of 2", this will result in the following parts being added to the parts list for that instance of the Head component:

• One 30" stick of head framing

• Four fabrication screws

• Two 2" lengths of butyl tape

Part Use Conventions

Some definitions before we get started:

• Package is the thing that is being purchased.

• A package can contain a single item or a group of items.

Part Use	Value	Assigns	Supported Component Types	Supported Purchase Types
Per Component	One unit is required each time the component is used.	Units	Any	Per unit/box
Eight Inches on Center	The component's Length is divided by 8 and rounded up to the nearest integer.	Units	Any	Per unit/box
Twelve Inches on Center	The component's Length is divided by 12 and rounded up to the nearest integer.	Units	Any	Per unit/box
Sixteen Inches on Center	The component's Length is divided by 16 and rounded up to the nearest integer.	Units	Any	Per unit/box
Twenty Four Inches on Center	The component's Length is divided by 24 and rounded up to the nearest integer.	Units	Any	Per unit/box
Custom Inches on Center	The component's Length is divided by a custom number and rounded up to the nearest integer.	Units	Any	Per unit/box
One Unit	Set the quantity to include a specific number of units of the part.	Units	Any	Per unit/box
Units Per Square Foot	The component's area is calculated in square feet. If logical, the result is assigned to the number of units required. If not logical (such as 10.1 screws is not logical) the result is rounded up to the next integer value then assigned to the number of units required.	Units	Overall Elevation, Glass, Vertical Section	Per unit/box
Per Horizontal/Jamb Intersection	One unit is required for each jamb component that the horizontal intersects.	Units	Horizontal frame components	Per unit/box
Per Horizontal/Mullion Intersection	One unit is required for each mullion component that the horizontal intersects.	Units	Horizontal frame components	Per unit/box
Per Opening Side	One unit is required for each perimeter side the receptor comes into contact with.	Units	Receptors	Per unit/box
Opening Size Height	The assigned value is equal to the elevation height.	Length	Any	By length
Opening Size Width	The assigned value is equal to the elevation width.	Length	Any	By length
Opening Perimeter	The total length of the perimeter.	Length	Any	By length
Overall Frame Height	The Opening Height minus the top and bottom shim spaces.	Length	Any	By length
Overall Frame Width	The Opening Width minus the left and right shim spaces.	Length	Any	By length
Vertical Component Height	The vertical height of the component.	Length	Any (but horizontal components will return their face dimension)	By length
Component Length	The length of a framing or receptor component.	Length	Framing, Receptors	By length
Horizontal Assembly Width	The Opening Width minus the left and right shim spaces and receptor deductions.	Length	Any (but vertical components will return their face dimension)	By length
Component Face Dimension	The visible face dimension of the framing or receptor component. If applied to the Overall Elevation, then returns the Product System's Typical System Face.	Length	Frames, Receptors, Overall Elevation	By length
Component Thickness/Depth	The thickness/depth of the component. Any component may have a thickness, including framing, receptors, glass, even overall elevation and vertical section. If used in the Overall Elevation or Vertical Section, returns the Product System's depth.	Length	Any	By length
System Depth	(deprecated) The product system's depth. Instead you should use the Component Thickness on the Overall Elevation component.	Length	Any	By length
Interior Sealant Height	The Product System's Interior Sealant Height.	Length	Any	By length
Daylight Width	The distance between two vertical frames for a glass lite.	Length	Any -- TODO: SHOULD NOT BE USED ON VERTICALS!	By length
Daylight Height	The distance between two horizontal frames for a glass lite.	Length	Any -- TODO: SHOULD NOT BE USED ON HORIZONTALS!	By length
Daylight Perimeter	The sum of Daylight Width * 2 and Daylight Height * 2.	Length	Any	By length
Horizontal Vinyl Length	Daylight Width + ( Daylight Width * The Product System's Add Per Foot Vinyl / 12 )	Length	Any	By length
Vertical Component Vinyl Length	TODO Behaves Differently Depending on the Component Because it Returns the Total Daylight Height of All Rows in the Component For elevations and glass there can be only one row. Vertical section components can have multiple rows. Returns the total daylight height of all rows in the component + The total daylight height of all rows in the component * The Product System's Add Per Foot Vinyl * 2	Length	Any	By length
Glass Perimeter Vinyl	The Sum of Horizontal and Vertical Vinyl.	Length	Any	By length
Glass Height	The Daylight Height plus the Vertical Glass Bite of the Product System.	Length	Any	By length
Glass Width	The Daylight Width plus the Horizontal Glass Bite of the Product System.	Length	Any	By length
Glass Block Area	The area in square inches given by rounding both the glass width and height up to the nearest even inch, and multiplying them together. There is a minimum of 4 square feet for each piece.	Area, Length, and Width	Any	Area
Square Feet	The area in square feet of the component. Supports Overall Elevation, Vertical Section, or Glass components.	Area	Overall Elevation, Glass, Vertical Section	Area
Caulk Joint Depth	TODO: Does this exist anymore? The Caulk Joint Depth is 1/2 of the shim space if this is less than 1/4, then 1/4 if this is more than 3/8, then 3/8. This is used to calculate the volume of caulk joints.	Length
Custom Length	Specify the length (in inches) of the part to include and set the quantity at that length.	Length	Any	By length
Glass Perimeter Joint Volume x System Properties	Daylight Perimeter * (Product System's Structural Sealant Width) * (Product System's Structural Sealant Depth). This result is converted to mL and multiplied by 1.25 to allow for waste.	Volume	Any	Volume
One-Side Perimeter Joint Volume (x2 for waste)	The sum for each side of the elevation of: (Caulk Joint Depth * Shim Space at this side * Length at this side). The result is converted to mL and doubled to account for waste.	Volume	Any	Volume
Exterior Perimeter Joint Volume (x2 for waste)	The one-side perimeter caulk volume for the left, right, and bottom sides of the elevation. One-Side Perimeter Joint Volume (x2 for waste) + (Product System's Interior Sealant Height * Caulk Joint Depth @ Right * Right Shim Space) + (Product System's Interior Sealant Height * Caulk Joint Depth @ Left * Left Shim Space) + (Opening Width * Caulk Joint Depth @ Bottom * Bottom Shim Space) The result is converted to mL.	Volume

All Lengths are specified in inches. Area is square inches. Volume in milliliters.