Extend Roof Slab

The Extend Roof Slab tool to extend a slab or roof slab to a plane defined by another slab, a roof slab, or a wall. The target itself does not have to intersect with the extended slab/roof slab, as long as it projects an intersection in the current user coordinate system (UCS).

To Extend a Roof Slab:

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Another Example:

Notice that the roof slab has extended to where the wall would be if it were that tall.