Groove on Ramp

[yezawlin]

I need to place some grooves on the ramp as shown in the image.
And Ramp cannot be cut by void family.

I tried using floor instead of ramp, there are two ways to create floor like a ramp, right.

First I used Slope Arrow, I can cut the floor by void family, but the Start edge and End edge of the floor are not parrell to the ground (not horizontal).
Second I used Modify Sub Elements, then I can't cut the floor with a void family.

How can I achieve this ?
Any suggestion would be great help.

Thanks.

[gbrowne]

Welcome to the forums. It might be a case for an in-place family with voids. But can I ask: Does this detail really require modelling?

[Alfredo Medina]

What would you gain by spending time to model the groove on the ramp? What additional information will that model provide that the image above is not already providing?