Question 1

How much do raised garden beds cost in Sydney?

Accepted Answer

Raised garden beds in Sydney cost between $150 and $500 per lineal metre installed, depending on material (timber, steel, masonry), height, and soil fill. A standard 1.2m x 2.4m timber raised bed costs approximately $400 to $800 including soil. Corten steel beds cost more ($300 to $500/lm) but last 30+ years. All costs are indicative.

Question 2

What is the best material for raised garden beds?

Accepted Answer

Hardwood (ironbark, spotted gum) and Corten steel are the most durable options for Sydney. Treated pine (H4) is affordable but has a shorter lifespan. Corten steel develops an attractive rust patina, does not rot, and lasts decades. Galvanised steel is budget-friendly and long-lasting. For vegetable gardens, ensure any timber used is ACQ-treated (not CCA) for food safety.

Question 3

What soil should I use in raised garden beds?

Accepted Answer

A premium garden mix of 60% quality topsoil, 30% compost, and 10% coarse sand works well for most Sydney gardens. For vegetable gardens, use a certified organic veggie mix. Avoid filling beds entirely with potting mix — it compacts over time. Sydney soil suppliers like Australian Native Landscapes and Soilworx deliver quality garden mixes by the cubic metre.

Question 4

How deep should a raised garden bed be?

Accepted Answer

Minimum 200mm depth for herbs and shallow-rooted plants. 300 to 400mm for most vegetables and flowers. 500mm or deeper for root vegetables (carrots, potatoes) and shrubs. If building on top of existing soil, the roots can extend below the bed for additional depth.

Question 5

Do raised garden beds need drainage?

Accepted Answer

Yes. Raised beds should have an open base (no solid bottom) to allow excess water to drain into the ground below. If built on concrete or hard surfaces, drainage holes in the base and a gravel layer are essential. In Sydney's clay-heavy areas, a gravel drainage layer beneath the soil is recommended even with an open base.

Material	Cost/lineal m	Lifespan
Treated Pine (H4)	$150 - $250	10-15 years
Hardwood Timber	$250 - $400	20-30 years
Corten Steel	$300 - $500	30+ years
Galvanised Steel	$200 - $350	20+ years
Sandstone/Masonry	$350 - $600	50+ years

Garden Beds & Raised Beds Sydney

Types of Garden Beds

Raised Garden Beds

In-Ground Garden Beds

Garden Edging

Soil Preparation

Raised Bed Materials

Frequently Asked Questions

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