Area drains should be:
- Depth: Minimum 12" below door sill, preferably 18-24"
- Width: Extend 6" beyond door perimeter on all sides
- Gravel base: 4-6" crushed stone for drainage
- Slope: 1/4" per foot away from door
Poor drainage is the #1 cause of cellar door problems. EcoSpect designs proper drainage systems with every installation. Professional assessment recommended -