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    Court Base Options

    The base under your tiles is the single most important decision in any court build. Compare concrete, asphalt, and permeable gravel - and choose the right foundation for your climate, budget, and use case.

    Why the Base Matters

    Modular Game Tile Courts™ tiles are engineered to perform on top of a properly prepared sub-base. The base controls drainage, flatness, ball bounce, longevity, and warranty eligibility. A great tile cannot compensate for a poor base - but a great base will make every tile feel professional for decades.

    Quick Comparison

    Base TypeRelative CostDrainageBest For
    Concrete$$$≈1% slopeAny sport or court type
    Asphalt$$≈1% slopeAny sport or court type
    Permeable Gravel$$Fully permeableAny sport or court type

    The Three Base Options - In Detail

    Each option below includes a full cross-section diagram, spec sheet, and step-by-step build guide. Click through for the complete contractor-grade documentation, or download the printable PDF.

    Cross-section diagram of a concrete base for a sport tile court

    Lowest Lifetime Cost

    Concrete Base

    Higher upfront capital expense, but the lowest cost of ownership going forward. The flattest, longest-lasting, and most consistent base - works for any sport or court type.

    Relative Cost
    $$$
    Drainage
    ≈1% slope

    Best For

    Any sport or court typeLowest lifetime cost of ownershipMaximum longevity & flatness
    Cross-section diagram of a asphalt base for a sport tile court

    Lower Entry Point

    Asphalt Base

    A lower-cost entry point for a strong, impervious base. Installs faster than concrete and supports any sport or court type when built to court-grade specs.

    Relative Cost
    $$
    Drainage
    ≈1% slope

    Best For

    Any sport or court typeLower upfront entry costStrong impervious base
    Cross-section diagram of a permeable gravel base for a sport tile court

    Easiest on the Body

    Permeable Gravel Base

    The easiest base on the body - knees and joints - and meets requirements for permeable builds and stormwater drainage. Works for any sport or court type when paired with geotextile fabric and edge restraint.

    Relative Cost
    $$
    Drainage
    Fully permeable

    Best For

    Any sport or court typeEasier on knees & jointsPermeable & stormwater compliant

    How to Choose

    • Concrete - Higher upfront capital expense, but the lowest cost of ownership going forward. Works for any sport or court type.
    • Asphalt - Lower entry cost for a strong, impervious base. Works for any sport or court type.
    • Permeable Gravel - Easiest on the body, knees, and joints. Meets requirements for permeable builds and stormwater drainage. Works for any sport or court type.
    • Pavers - Possible in select cases. See our Paver Base FAQ for the constraints.

    Print-Ready Spec Sheets

    Branded PDF guides for your contractor or design team - one per base type.

    Already Have a Base?

    If you already have a concrete pad, asphalt driveway, or paver patio, our team can evaluate whether it's tile-ready. Send dimensions and a few photos to play@gametilecourts.com or call 866-GAME-TILE for a free assessment.

    Pro tip: No matter which base you choose, plan for a 1% slope in one direction and finish the perimeter with a clean edge for the tile transition system to lock against.

    Avoid: Bare dirt, mulch, grass, or unprepared subsoil - none of these will support a tile court.

    Frequently Asked Questions

    What is the best base for a backyard sport court?

    Concrete is the gold standard for a backyard sport court because it provides the flattest, longest-lasting, and most level surface for modular tiles. Asphalt is a strong second choice when poured to court-grade specs, and a permeable gravel base can work for budget-conscious or seasonal builds when paired with the proper geotextile fabric and edge restraint.

    Can Game Tile Courts™ tiles be installed over an existing driveway or patio?

    Yes. Modular Game Tile Courts™ tiles can be installed over an existing concrete or asphalt slab as long as the surface is structurally sound, drains properly, and is within acceptable flatness tolerances (typically 1/4" deviation over 10 feet). Cracked, heaving, or sloped slabs may require leveling or repair before tile installation.

    How thick does a concrete base need to be for a basketball court?

    We recommend a minimum 4-inch thick reinforced concrete slab for residential basketball, pickleball, and multi-sport courts. Thicker pours (5–6 inches) are recommended in freeze-thaw climates or where heavy commercial traffic is expected.

    What slope is required for outdoor court drainage?

    Plan for a 1% slope (about 1/8" per foot) in a single direction across the playing surface. This is enough to shed rainwater off the tiles without affecting ball bounce or player footing.

    How do Game Tile Courts™ tiles interact with concrete expansion joints?

    Modular tiles float on top of the slab and follow the overall planarity of the court, so expansion joints generally do not affect performance across the playing surface. However, where a tile's underside legs land directly over an expansion joint, the legs can drop slightly into the joint cavity. This can create a localized soft spot that may subtly affect ball bounce or feel on that specific tile.

    Ready to plan your court?

    Talk to a Game Tile Courts™ specialist for a free Court CAD Layout, base recommendations, and a same-day quote.