Wholesale Hardscapes

N12 Pipe - 4x20 Solid Black

N12 Pipe - 4x20 Solid Black

$95.00

Includes 7.5% tax
Total price might change depending on your location

N12 Pipe – 4" x 20' Solid Black


ADS N12 dual-wall pipe is the professional-grade drainage solution for hardscape, landscape, and civil projects that demand higher structural performance than single-wall corrugated pipe. This 4-inch by 20-foot solid (non-perforated) stick features a smooth interior wall for maximum flow capacity and a corrugated exterior for soil-load strength. The dual-wall design delivers significantly better hydraulic performance — meaning water moves faster with less friction loss over long runs.

  • N12 is the contractor's choice when the job calls for rigid drainage runs behind retaining walls, under driveways, in stormwater conveyance systems, and anywhere the pipe needs to handle soil pressure without deforming. It's the upgrade from flex pipe when the project is permanent, structural, or under load.c


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  • SPECIFICATIONS

    Specifications

    • Diameter: 4 inches
    • Length: 20-foot stick
    • Wall type: Dual-wall (smooth interior / corrugated exterior)
    • Construction: HDPE (high-density polyethylene)
    • Type: Solid (non-perforated) — for water conveyance, not collection
    • Interior: Smooth bore for high flow capacity
    • Connection: Bell-and-spigot with gasket or snap coupler
    • Color: Black
    • Common applications: Retaining wall drainage outlets, driveway crossings, downspout discharge runs, stormwater conveyance, sub-grade pipe runs under hardscape


    Why N12 Over Corrugated Flex?


    • Smooth interior = faster flow and less sediment buildup
    • Dual-wall construction = higher crush resistance under driveways and heavy fill
    • Rigid sticks = straighter runs and more predictable grade control
    • Bell-and-spigot joints = watertight connections without tape or external couplers



  • HOW TO USE

    Installation Tips


    • Bed pipe in clean drainage stone with minimum 4" of cover over the crown
    • Maintain 1% minimum slope for gravity flow
    • Use solid pipe for conveyance; switch to perforated N12 for collection (French drains)
    • Wrap perforated sections in geotextile to prevent soil intrusion





  • DETAILS

    Complete Your Project


    • Catch Basins and drain grates
    • Pea Gravel or #57 stone (pipe bedding and backfill)
    • Geotextile Fabric
    • N12 fittings: tees, elbows, couplers, reducers
    • Channel Drains (surface water collection)