Quantity of Boulders for a Pond

Length of Pond: Width of Pond:

Length x Width / 40 = Tons of boulders

For every 1 ton of 6" - 12" boulders, get 2 tons of 12" - 18" boulders and 1 ton of 18" - 24" boulders

Quantity of Boulders for a Stream

Length of stream

1.5 tons for every 10' of stream using a 1:2:1 ratio: For every 1 ton of 6" - 12" boulders, get 2 tons of 12" - 18" boulders and 1 ton of 18" - 24" boulders

Quantity of Gravel in a Pond

Tons of boulders in pond

Pond gravel = 25% of the total tons of boulders use in the pond

Quantity of Gravel in a Stream

Tons of boulders in stream

Stream gravel = 25% of the total tons of boulders use in the stream

Quantity of Boulder for Face of Waterfall Box

14" - 0.6 tons of mixed Boulders
22" - 1 ton of mixed boulders
30" - 1.5 tons of mixed boulders
40" - 3 tons of mixed boulders

Quantity of Boulders for a Retaining Wall

1 ton of 12" - 18" Boulders will cover 10 linear feet
1 ton of 18" - 24" Boulders will cover 5 linear feet

Quantity of Stone used in a Bog Filter (per 10 sqft)

900 lbs of 1.5" - 2" Washed River Gravel
900 lbs of 1/2" - 1" Washed River Gravel

Quantity of Boulders Used Around the Perimeter of Bog Filter

1/2 ton of 6" - 12" Boulders will cover 20 linear feet
1/2 ton of 12" - 18" Boulders will cover 5 linear feet

The Following Are For Smaller Features like the Complete Aquiatics Junor Kits...

Pond Boulders

Length of Pond: Width of Pond:

Length x Width / 60 = Tons of boulders

For every ton of 6" - 12" get one ton of 12" to 18" or a 1 to 1 Ratio

Stream Boulders

Length of stream

1 ton for every 10' of stream or a 1 to 1 Ratio, using 6" - 12" and 12" - 18" boulders