Grading
Grading is the process of shaping and leveling earth to establish proper drainage patterns, create building pads, and prepare sites for construction or landscaping.
Grading shapes land surfaces to direct water away from structures, create level building pads, and establish proper elevations for driveways, patios, and landscaping. Proper grading requires sloping ground away from foundations—typically a minimum 5% slope (6 inches drop over 10 feet) for the first 10 feet around the building. Grading plans show existing and proposed elevations, cut and fill areas, and drainage patterns. Heavy equipment like excavators and graders move earth efficiently for large projects.
Why It Matters for Denver Homes
Poor grading causes 90% of foundation water problems. Denver's clay soils expand when wet and shrink when dry, creating differential pressure on foundations. Proper grading directs water away before it saturates soil against your foundation. Spring snow melt creates concentrated runoff that must be channeled away from buildings. Grading also prevents water from pooling in yards, which kills grass and creates muddy conditions. Final grading includes topsoil placement for healthy lawns and prevents settling that creates drainage problems later.
Common Grading Applications
- Foundation perimeter: 5% minimum slope away for 10 feet
- Swale creation: Shallow drainage channels directing runoff to storm drains
- Building pad preparation: Level areas for foundations and slabs
- Driveway grading: Proper pitch for drainage without ponding
- French drain installation: Subsurface drainage for problem areas
- Final grading: Topsoil placement and fine-tuning before seeding or sodding
Related Terms
Backfill
Backfill is the process of replacing and compacting soil or other material around foundations, retaining walls, and utility trenches after construction is complete.
Waterproofing
Waterproofing involves installing membranes, sealants, and drainage systems to prevent water from penetrating foundations, basements, showers, and other vulnerable areas.
Building Permit
A building permit is official authorization from the local building department allowing specific construction work to proceed in compliance with building codes and zoning regulations.
