How much potting mix needed to fill a raised garden bed?

[zoe63]

Hello 

Can you please advise how many bags of potting mix you need to fill the following - 

Fountain Products 610 x 510 x 240mm Charcoal Raised Garden Bed with Wheels - I/N: 0117520

Thank you in advance.

Kind regards

Zoe Hoopert 

[smokey1507]

Here's the equation to work out cubic metres required to fill this and any other similar product w×d×h in metres. w= width, d=depth and h= height. So 0.61×0.51×0.24= 0.074664 or...0.07 cubic metres. Bags of potting mix comes in 25kg bags. 25 litres of potting mix converts to .025 cubic metres. 3 bags of 25 litre potting mix should do the trick. Here's a list of options https://www.bunnings.com.au/search/products?page=1&q=25+litres+Potting+mix&sort=BoostOrder

[Jason]

Welcome to the Bunnings Workshop community @zoe63. We're pleased to have you join us. 

You might like to check out the step-by-step guide How to fill a raised garden bed by experienced contributor @Noelle. In step 4, Noelle explains how to determine the number of bags of potting mix needed by calculating the volume required. For example, a bed measuring 1.5m wide x 2m long x 0.3m depth of potting mix will need 0.9 cubic metres, which is 900 litres (1000 litres is 1 cubic metre).

We also have a collection of Best Advice from our members on this same topic here - How do you fill a raised garden bed? 

We look forward to reading more about your projects and plans for around the house and garden.

Jason

[EricL]

Hi @zoe63 

It's great that you've received excellent advice from our members. Just remember to keep in mind to choose the right soil for the plant you are planning on putting in.

Here are some handy step-by-step guides:

• How to choose the right soil for your plants by @Noelle 
   
• How to choose a garden hand tool
   
• How to choose shade-tolerant vegetables by @Adam_W 

If you have any other questions we can help with, please let us know.

Eric