Slab openings

BACnet MVD

### E.9.6 Slab openings

Format | ASCII | Size
--- | --- | ---
XML | File | 8109
STEP | File | 3833

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Entity
IfcSlabStandardCase
IfcOpeningStandardCase
IfcArbitraryClosedProfileDef
IfcRectangleProfileDef
IfcCircleProfileDef
IfcRelVoidsElement

This example illustrates a standard case slab with extruded solid geometry, based on a material layer set usage definition. It includes one round opening and one rectangular recess. Figure 424 shows the resulting shape.

> NOTE The opening and recess are instances of IfcOpeningStandardcase.

Figure 424 — Standard case slab with opening and recess.

> NOTE There is no color information within the file, the displayed color has been set by the target application as a default.

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