# Measurement Description

Net Area:
• Area of the largest surface of an object, excluding voids.
Double Net Area:
• Calculated as “Net Area * 2”.
Gross Area:
• Area of the largest surface of an object, including voids.
Double Gross Area:
• Calculated as “Gross Area * 2”.
Net Side Surface Area:
• Side surface area of an object, excluding voids on the sides.
Gross Side Surface Area:
• Side surface area of an object, including voids on the sides.
Outer Surface Area:
• Total area of a object, excluding voids and end faces (horizontal faces for a column and 2 minimal vertical faces for a beam).
Outer Surface Area Without Top:
• Total surface area of an object, excluding top and end faces.
Min Double Face Area:
• Double area of the smallest surface of an object, including voids.
Mid Double Face Area:
• Double area of the medium surface of an object, including voids.
Max Double Face Area:
• Double area of the largest surface of an object, including voids.
Net Top Area:
• Area of the top surface of an object, excluding voids.
Net Bottom Area:
• Area of the bottom surface of an object, excluding voids.
Gross Volume:
• Gross Volume for concrete beams (before cutting the volumes of an adjacent slab and adjacent columns from a beam, often used to calculate the weight of reinforcement bars).
Net Volume:
• Volume of an object, excluding voids.
Length:
• The largest linear dimension of an object.
Projection Length:
• Plain projection of the linear length of an object.
Steps Length:
• The total length of all steps of the stairs.
Total Perimeter:
• Perimeter of the horizontal section of the wall or the floor, including perimeter of inner voids (suited for slanted objects too).
Outer Perimeter:
• Perimeter of the horizontal section of the wall or the floor (suited for slanted objects too).
Perimeter Without Doors:
• Perimeter which is calculated in the same way as "Outer Perimeter", subtracting the width of the doorway. Can only be calculated in locations.
Quantity:
• Number of objects with the same properties in a model.