12''X20'PLASTIC ROAD TILE DOUBLE

Product Overview

This category of 12″ × 20′ HDPE (high‑density polyethylene) dual wall drainage pipe is engineered to convey groundwater and stormwater efficiently and durably in residential, commercial, and infrastructure drainage systems. Dual wall pipe features a smooth interior flow surface for high hydraulic capacity, and a corrugated exterior for structural strength under soil loads. ADS N‑12 dual wall pipe is lightweight and resistant to corrosion, chemicals, and abrasion, making it a long‑lasting, lower‑maintenance alternative to concrete or metal pipe products. Depending on the model, options include solid or perforated pipe, soiltight or watertight bell‑and‑spigot joints, and plain end configurations for use with couplers. This sizing is ideal for storm drain runs, French drains, yard and landscape drainage, and subsurface infrastructure applications.

Key Specifications (Typical for 12″ Dual Wall Pipe)

Nominal Size & Length

Nominal Diameter: 12 in

Length per Stick: 20 ft (long lengths reduce joints and speed installation)

Material & Construction

Material: High‑Density Polyethylene (HDPE) — durable and resistant to corrosion, chemicals, and abrasion

Wall Type: Dual wall with smooth interior and corrugated exterior — optimized for flow and strength

Joint / Connection Options

Bell‑and‑spigot (soiltight or watertight): Provides secure, low‑leak connections

Plain end (for use with couplers): Allows flexible field assembly

Performance Standards

Meets AASHTO M‑294 (dual wall corrugated pipe standard) and ASTM F2648 for hydraulic and structural performance

Hydraulics & Flow

Smooth interior offers a low resistance to water flow (Manning’s n ≈ 0.012 typical) — effective for gravity drainage systems

Typical Applications

Stormwater conveyance and surface runoff drainage

French drain systems under lawns and landscapes

Foundation and perimeter drainage

Culverts and roadway drainage

Landscape and low spot drainage

Benefits

Efficient water movement: Smooth interior minimizes clogging potential and increases flow capacity.

Long service life: HDPE resists environmental degradation, corrosion, chemicals, and freeze‑thaw cycles.

Easy installation: Lightweight pipe in 20′ lengths reduce joints and labor.

Versatile configurations: Solid or perforated options for conveyance or infiltration (French drains).