Hi Ann,
For a 6" threshold height, you'll need to choose the ramp long enough to accommodate for the height.
The Elev8 has two size options that will fit your threshold.
Part Number ATH4832: 48" L x 32" W" for threshold height from 4" - 6".
Part Number ATH4836: 48" L x 36" W" for threshold height from 4" - 6".
PVI Ramps are manufactured and shipped from NE. Orders placed by 12PM ship same day.
Thanks Ann,
Mike Benge
IndeMedical.com
800-380-2108