How much pond liner do I need?
How much rock do I need?
(L in meters x W in meters)/4.1 = metric tonnes of Rock & Boulder
Use 1:2:1 Ratio . So for every 1 tonne of 15 - 30 cm rock : 2 tonne of 30 - 45 cm rock : 1 tonne of 45 - 60 cm Boulder. Using a variety of sizes makes the pond look more natural.
xample: 5m x 5m pond needs (5x5)/4.1 = 6.1 tonnes of Rock & Boulder. So 6.1/4 = 1.53. Therefore use 1530 Kg of (15-30cm rock) and 3060 Kg of 30-45cm rock and 1530 Kg of 45-60 cm Boulders.
How Much Pebble do I Need for my Pond?
Use 30% of required metric tonnes of POND Rock & Boulder
Gravel 1-4 cm size
Example: 6.1 tonnes of Rock & Boulder required x 0.3 = 1830 Kg or 1.83 tonne
How Much Rock do I Need for my Stream?
For every 3m of Stream use 1.4 metric tonnes of rock using 1:2:1 ratio as above
To have a 6m stream into the pond use 2.8 metric tonnes of rock. You will need 700 Kg of 15-30cm rock and 1400Kg of 30-45cm rock and 700 Kg of 45-60cm rock.
How Much Pebble do I Need for my Stream?
Use 30% of required metric tonnes of STREAM Rock & Boulder
Pebble 1-4 cm size
Example: 2.8 tonnes of STREAM Rock & Boulder required above x 0.3 = 840 Kg