Concrete Drainage Channel 50 × 30 cm - drains water without slopes
Concrete drainage channel: water carried exactly where you want it
When a patio has nowhere for water to go, every storm leaves puddles and damp patches that end up at the front door. This precast channel carries rainwater to the drainage point and, because it does the work through its own cross-section, lets you solve drainage without creating very steep slopes in the paving.
✅ Key advantages
Less slope needed in the paving: water is collected in a line, without having to tilt the whole surface.
Makes tiling easier: the paving meets the channel with a clean finish.
High-quality concrete: a solid 15.9 kg piece, resistant to foot traffic and weathering.
Natural grey color: a neutral tone that doesn't compete with the surrounding paving.
🏗️ Recommended applications
Gardens and patios with pooling problems.
Vehicle entrances and garage ramps.
Perimeter of terraces and porches.
Any area that needs linear water drainage.
📋 Technical specifications
Dimensions: 50 × 30 × 4 × 6 cm.
Weight: 15.9 kg per unit.
Material: high-quality, durable concrete.
Color: natural grey.
Units per pallet: 64.
🧰 Installation
Mark out the channel's route and its final drainage point.
Dig the trench and lay a 10 cm concrete base.
Bed the pieces with a continuous minimum slope of 0.5% towards the drain.
Level with a long straightedge: any reverse fall leaves water standing inside.
Butt the paving up against the sides of the channel.
Seal the joints between pieces and let it cure before running water through it.
📦 Available formats
50 × 30 × 4 × 6 cm in natural grey.
Sold by unit or by pallet of 64 units.
💡 Professional tip: the channel only works if the whole line falls towards the drain. At 50 cm per piece, just one badly bedded section creates a reverse slope that holds water, breeds mosquitoes and leaves a limescale ring. Run a string line marking the slope before bedding the first piece, and check it with a level every three or four units.
Frequently Asked Questions
¿Qué medidas tiene?
50 × 30 × 4 × 6 cm.
¿Cuánto pesa cada pieza?
15,9 kg.
¿Cuántas piezas necesito por metro lineal?
Dos unidades, ya que cada canaleta mide 50 cm.
¿Qué pendiente hay que darle?
Una pendiente continua mínima del 0,5 % hacia el punto de desagüe.
¿Evita tener que inclinar todo el pavimento?
Sí, al recoger el agua en línea reduce la pendiente necesaria en la superficie.
¿Cuántas unidades trae el palet?
64 unidades.
¿En qué color se fabrica?
Gris natural.
¿Qué pasa si una pieza queda mal asentada?
Crea contrapendiente y retiene agua, con riesgo de mosquitos y cercos de cal.
