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Deck Cost Calculator

This deck cost calculator allows you to estimate the cost of your deck by combining the cost of materials, labour, site conditions and size. Once these factors are known, an approximate cost can be determined. For a personalised design and quote, please contact Benchmark Residential to arrange an appointment. Please note this is an estimate, not a quote.

Step 1: What size will your deck be?

Enter the size of your new deck. If you do not know the size yet, please select 'small' (15m2), 'medium' (25m2), or 'large' (40m2) to get an approximate idea of the cost.

m2

Step 2: Choose decking material

Step 3: How high off the ground will your deck be?

Set the maximum distance from the floor of your deck to the natural ground below.

Step 4: What are your site conditions?

Step 5: Will your deck require a balustrade?

For safety reasons all decks 60cm or more off the ground require a balustrade. If you require a balustrade over your deck, enter the total length in metres. Choose from either a timber and wire balustrade, or a glass balustrade. If your deck doesn't require a balustrade, you can leave all the fields in this step at zero. Please click the [=] button after entering amounts

Length (Timber & Wire):
m
X $150.00/m
$

Timber & Wire example

Length (Glass):
m
X $200.00/m
$

Glass Balustrade Example

Step 6: Does your deck require a roof?

If you require a roof over your deck, enter the size in square metres. The default of $220 per square metre is an estimate for roofs constructed from insulated sandwich panels.

Size:
m2
X $220.00/m2
$

length x width = m/2

Add Fly-over Attachment:
m2
X $10.00/m2
$

Leave as 0 if attaching to existing gutter

Add Merbau Hardwood Posts – 100x100mm:
ea
X $100.00/ea
$

Add Merbau Hardwood Posts – 140x140mm:
ea
X $190.00/ea
$

Add Merbau Hardwood Posts – 190x190mm:
ea
X $250.00/ea
$

Add Merbau Hardwood Roof Beams :
ea
X $350.00/ea
$

Add and install LED down lights including switch back to house:
ea
X $100.00/ea
$

Down light (example only)

Step 7: Is your deck in a bushfire prone area?

It can be difficult to estimate the cost of a deck in a bushfire prone area because you must comply with strict Australian standards (AS3959) that do not permit the use of timber. Our calculator assumes you will pay up to double the cost of a timber deck, but you really need to contact us to get an accurate price.

Step 8: Determine the approximate cost of your new deck

$

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