Rope would have probably sufficed.

A Wisconsin woman thought it would be “OK” to have her 9-year-old son ride on the roof of her minivan — in the attempt to hold down a plastic pool — and now she’s facing up to ten years in prison, cops said.

Amber Schmunk, 28, was charged Tuesday with second degree recklessly endangering safety for the Sep. 9 incident, according to WTMJ-TV.

The Ozaukee County mom reportedly admitted to police that she was driving with her son on the roof, “but only for a short time, maybe 20-30 seconds,” she said.

A local resident had spotted her and called 911.

Schmunk told cops that she picked the pool up from a nearby residence and couldn’t fit it inside her vehicle. She said she “had no way to strap it down, so she had her child climb on the roof and hold it down while she drove,” the charging complaint says.

Schmunk went on to tell officers that she thought it would be “OK” for her to drive with her boy on the roof because her father did the same thing with her when she was a kid.

If convicted, she faces up to ten years in prison and a $25,000 fine.