24 5/8" x 5 1/8" - Rear lower pillar. Constructed of durable fiberglass reinforced plastic. Non-Symmetrical or interchangeable, select left or right. The surface is textured.
This pillar fits some 2000 Jayco models.
Sierra Engineering part number: #1448, #1446
Jayco rear upper pillar: #1445, #1447
Please verify your measurements and and compare them to the drawing above.