- Length 90cm
- Width 15cm, 20cm and 30cm variations
- Thickness 7.5cm
The 30cm (300mm) width is the widest Grodan rockwool slab size available. Grodan rockwool slabs are made to high standards and also created sustainably. 15cm and 20cm widths are also available. Rockwool slabs may be used for:
- Raising seeds and growing cuttings
- Re-planting from Rockwool cubes
- Vertical wall gardens
Click here to read our handy guide on raising seeds with rockwool.
This calculator will give you the delivery charges for this product only. Once you place all the items you wish to buy in the cart, the combined shipping price will be shown, including Free Shipping if you are eligible.
What is the eligibility for Free Shipping?
As long as your delivery address is in our free shipping zone, and your order is above the minimum value for free shipping, your shipping will be free. For full details see our shipping information here.