Grow Slabs & Lay-Flat Bags

  • Ready-to-Plant Setup: A complete planting slab in a durable, UV-protected bag. Just add water, cut slits, and plant immediately!
  • Long-Lasting Drainage: Custom coir pith and husk chip blends that keep their strong structural shape, preventing compaction for years.
  • Higher Harvest Yields: Built for commercial glasshouses (tomatoes, berries, cucumbers) to give you the highest crop output per square meter.
  • Complete Fertilizer Control: Extremely low native salts, so you can feed your crops your exact nutrient recipe from day one.
Rise Substrates Grow Slabs

Standard Dimensions

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Nursery Grow Bags (Small)

25 × 20 × 16  |  25 × 20 × 18  |  25 × 20 × 20 cm

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High-Density Grow Cubes

30 × 30 × 30 cm

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Standard Greenhouse Slabs

90 × 15 × 8  |  90 × 15 × 10  |  90 × 15 × 12 cm

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Commercial Long Slabs (15W)

100 × 15 × 8  |  100 × 15 × 10  |  100 × 15 × 12 cm

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Commercial Long Slabs (18W)

100 × 18 × 8  |  100 × 18 × 10  |  100 × 18 × 12 cm

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Commercial Long Slabs (20W)

100 × 20 × 8  |  100 × 20 × 10  |  100 × 20 × 12 cm

Technical Parameters

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Fibre & Chip Composition

Premium Washed Coco Pith + Coir Husk Chips (Customizable Mix)

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Air Filled Porosity (AFP)

20% – 25% (Standard) | 30% – 35% (High Drainage Blends)

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Water Holding Capacity (WHC)

60% – 70% (Maintains active root moisture)

Electrical Conductivity (EC)

< 0.5 mS/cm (Fully Washed to protect roots)

pH Range

5.5 – 6.5

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Moisture Content

< 18% when packed

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Sleeve Protection

UV-stabilized co-extruded white/black LDPE bag (2-3 Years Guarantee)

Custom Pre-cuts

Pre-cut planting holes, dripper holes, and drainage slits available

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Volume Loading @ 40" HC

Palletized: Avg 7,200 Slabs per container

Built for Commercial Greenhouse Production

Commercial glasshouse operators in the Netherlands, UK, and North America are migrating from mineral wool to coir slabs for tomato, pepper, and soft fruit production. Here is what makes our slabs specification-ready for that transition.

Consistent EC

Low & Uniform Across Every Batch

EC <0.5 mS/cm on every slab. Automated fertigation controllers and sensor-driven irrigation systems need substrate EC to be predictable — not variable batch to batch. Our washing process delivers this consistency.

Fertigation Compatible

Zero Chemical Legacy

Water washed, sun dried — no chemical additives at any production stage. Your nutrient solution goes in clean, with no unknown chemical interactions from the substrate to account for in your fertigation programme.

Structural Stability

Multi-Season Performance

Coir pith and husk chip blends maintain air porosity and drainage over 2–3 crop cycles. No compaction collapse mid-season. UV-stabilized bags protect the substrate and maintain slab shape from transplant to end-of-crop.

Peat-Free Credentials

EU Regulation Ready

EU peat regulation is tightening from 2026. Coir slabs are the proven peat-free alternative at commercial glasshouse scale. Origin documentation, EC/pH test data, and processing specs available on request for procurement and ESG requirements.

Request Specifications & Samples

Suitable Crops

TomatoTomato
CucumberCucumber
Bell PepperBell Pepper
EggplantEggplant
StrawberryStrawberry
BlueberryBlueberry
RaspberryRaspberry
MelonMelon
RoseRose
SeedlingsSeedlings
HerbsHerbs

How Can We Help You?

Connect with our team for professional substrate solutions tailored to your growing needs.