From its intersection with Jeanne d'Arc Boulevard N, Trim runs south through the eastern suburban areas of Orleans and then south into rural former Cumberland Township.
It travels through the community of Navan before ending at Perreault Road.
Route 39 serves Trim road from the junction with Ottawa Regional Road 174, south to Millennium Boulevard, serving businesses at Taylor Creek Drive and the communities of Fallingbrook, Cardinal Creek and Springridge.
[2] Trim Road south of Innes marks the border between the eighth and ninth concessions of Cumberland Township.
Some commercial space is currently added in the area and it may represent the eastern terminus of a future transit corridor and possible east–west light rail line.