Questions and Answers

Questions and answers about concrete and Cardinal Concrete Ltd. Click each question below to reveal the answer.

How much soil should I put in my garden?

For a new garden installation, a good soil depth for most plants and vegetables is 18”.

If you have a spot or planter that is deeper than 18” then it is a good idea to bring up the base with a well draining material such as bedding sand or even drain rock. If you use drain rock, be sure to put filter cloth on top of the rocks to prevent weeds.

What is the difference between organic and commercial grade top soil?

We offer two main types of garden soil in our Squamish Landscape Depot: organic blend and commercial grade.

The organic soil offers a higher nutrient level and is made from composted materials including food scraps and yard waste.  The organic material is a good product for residential gardens and growing vegetables. The organic soil is guaranteed weed free and has zero e-coli or fecal matter.

You may find small remnants of plastic, like fruit labels, in your organic soil, which cannot be broken down in the composting process. This is unfortunate, but until these plastics are removed from the compost stream they may continue to show up in your soil.

The commercial garden blend is made from composted green waste including tree stumps and lumber, and can be used in gardens, flower beds, and for growing grass. It is naturally heated to 55 degrees Celsius to destroy weeds, seeds, and pathogens.

How much material do I need?

All of our soil, aggregate, and sand materials in our Landscape Depot are sold in yards, so the best way to figure out how much of any material you will need is to first calculate the cubic footage of the area.  This is done using the formula: Length x Width x Height.

Once you have the cubic feet, divide by 27 (there are 27 cubic feet in one yard) and this will give you the approximate number of yards required.

If you are purchasing a material which will be compacted – such as road base for a driveway, and even soils – you should add on an additional 10% to allow for the compaction of the material.



You need soil for your raised garden beds, and they are 5 feet long, by 4 feet wide, and 2 feet deep.

5 x 4 x 2 = 40 cubic feet

40 ft3/27 = 1.48 yards


Landscape Depot

Our Squamish Landscape Depot sells a variety of washed and crushed gravel, sand, decorative rock, and certified organic top soil.

Sand & Aggregates

Coast Aggregates offers all types of screened, crushed and washed aggregate products.

Top Soil & Mulch

Our top soil products are made with composted greenwaste and foodwaste, and are free from bio-solids.
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