🏈Sports Field Construction
Sports Field Construction Grade Verification — FIFA, NCAA, and USGA Documentation
Verify crown grade, drainage slopes, and surface tolerances to FIFA, NCAA, and USGA specifications for natural and synthetic turf fields.
The Problem
!
Synthetic turf base tolerances are tight
FIFA Quality Programme requires that synthetic turf base grades not exceed 1% in any direction. The entire field must be verified before turf installation — you can't fix it after the carpet is down.
!
Crown grade must be exactly right for drainage
A field that doesn't drain properly floods during games and becomes unusable. Getting the crown grade right — typically 1% from center to sidelines — requires systematic verification across the entire field.
!
FIFA and NCAA require documentation
FIFA Quality Programme certification and NCAA compliance both require documentation of field surface grades, drainage, and subbase construction. Field notes don't satisfy this requirement.
How Sitemark Solves It
Built for Sports Field Construction Contractors
✓
Full Field Grid Verification
Log elevation shots on a systematic grid across the entire field — verify crown grade and cross-slopes throughout.
✓
Crown Profile Documentation
Document the crown profile from hash mark to hash mark and endzone to endzone — verify the intended drainage path.
✓
Subbase Grade Verification
Verify subbase grades before turf or growing medium installation — catch problems when they can still be fixed.
✓
Drainage Slope Verification
Confirm drainage slopes toward perimeter drains, sideline drains, or natural drainage paths.
✓
Visual Pass/Fail Shot Map
Color-coded map of all grade shots across the field — instantly see where grades are out of tolerance.
✓
FIFA Certification Documentation
Complete grade verification documentation package for FIFA Quality Programme or USGA certification application.
Equipment
Top Equipment for Sports Field Construction
Shop all at Express Tools ↗
Free Tools
Free Sports Field Construction Calculators
Athletic Field Drainage Calculator
Crown and drainage slope check against FIFA/NCAA/USGA specs
Use calculator →
Road Crown Calculator
Crown elevation difference calculation
Use calculator →
Grade % Calculator
Calculate grade percentage from elevation data
Use calculator →
Drainage Slope Minimum
Minimum slopes for natural and synthetic turf surfaces
Use calculator →
Standards & Compliance
Compliance Sitemark Helps You Document
FIFA Quality Programme
FIFA requires synthetic turf field grades ≤1% in any direction and drainage capacity ≥3mm/hr for field certification.
NCAA Requirements
NCAA rules for competition field construction — drainage, grade, and surface performance standards.
USGA Specifications
USGA specifications for natural turf field construction — rootzone, drainage, and surface grade requirements.
ASTM F2107
ASTM standard for drainage rate testing on synthetic turf fields — required for many certification programs.
FAQ
What grade does FIFA require for synthetic turf fields?
FIFA Quality Programme specifications require that synthetic turf fields have a grade not exceeding 1% (1:100) in any direction across the entire field surface. The crown profile is typically achieved with a 0.5–1% slope from the center crown to the sidelines. All grades must be verified before turf installation.
How tight are the grade tolerances for synthetic turf bases?
Synthetic turf base grade tolerances are typically specified at ±0.02 ft (±1/4 inch) over any 10-foot span. This is quite tight and requires careful grading with a dual-slope grade laser and systematic verification. Out-of-tolerance areas must be corrected before the turf is installed — corrections after installation are extremely expensive.
How many shots are needed to verify a full-size soccer field?
A standard soccer field (105m × 68m) requires approximately 400–800 elevation shots for a thorough grade verification — shots on a 2–3 meter grid across the entire surface. Sitemark's map view shows all shots color-coded by pass/fail so you can identify problem areas efficiently.
Does Sitemark work for baseball and softball fields?
Yes. Baseball and softball fields have specific grade requirements: the infield skin typically slopes from the pitching mound (high point) toward the outfield grass at approximately 1% to 2%. The outfield has its own grade requirements. Sitemark's shot logger and visual map work for any field layout.
What documentation does FIFA require at project completion?
FIFA Quality Programme certification requires grade verification records, drainage test results, turf performance test results (from an accredited lab), and installation records. Sitemark covers the grade verification portion — shots, pass/fail, visual map, and certification report. The FIFA process also requires a licensed FIFA installer to oversee installation.
Ready to modernize your sports field construction documentation?
Join contractors using Sitemark to replace paper logs, pass inspections faster, and generate professional as-built reports in seconds.
14-day free trial · No credit card · Field Pro from $19/mo