MEASURE IN METRES. PLAN IN SQUARE METRES.
Deck area calculator.
From dimensions to possibilities.
Calculate a rectangular or L-shaped deck in m², explore finishes and save a brief for Bestcare’s Auckland building team. Enter your measured dimensions below. No contact details are needed to use the calculator.
A LITTLE PLANNING. A LOT OF POSSIBILITY.
Your space.
Your starting point.
Meet your future deck. Add your measurements, explore materials and see your idea take shape.
Natural timber · character, warmth and natural variation. Colours are illustrative.
Deck design inspiration
An outdoor entertaining space to inspire your deck plans.
For inspiration only. This is not a completed Bestcare project or a rendering of your calculator measurements.
LET’S MAKE IT YOURS.
Good things
start with
a conversation.
Tell us a little about your space. We’ll help you explore the possibilities and arrange a free consultation.
Give us a call09 833 3258Drop us a linebuilder@bestcarebuild.comHow to measure your deck area
Use the overall outside dimensions. Enter metres: for example, 450 centimetres is 4.5 metres. For an L-shape, measure the rectangular corner that is missing from the overall footprint.
Rectangular deck
Length × width
6 m × 4 m = 24 m²L-shaped deck
Overall rectangle − corner cut-out
(6 × 4) − (2 × 2) = 20 m²How do I calculate the area of a rectangular deck?
Measure the length and width in metres, then multiply them. A deck 6 metres long and 4 metres wide has an area of 6 × 4 = 24 m².
How do I measure an L-shaped deck?
Measure the overall rectangle, then subtract the missing corner. For a 6 × 4 metre rectangle with a 2 × 2 metre corner removed, the deck area is 24 − 4 = 20 m². This calculator supports one rectangular corner cut-out.
Is the offcut allowance the same as my finished deck area?
No. Finished area measures the space the deck covers. The optional offcut allowance adds a percentage for surface-material planning. For 24 m² with a 10% allowance, the planning quantity is 26.4 m². The builder must confirm actual board sizes, layout and ordering quantities.
Does the deck calculator provide a building quote?
No. It estimates area and illustrates the shape and finish. It does not calculate labour, structure, foundations, drainage, fixings, steps, balustrades or consent costs. Request a site consultation for a project-specific scope and price.
Can this calculator measure my deck from a photo?
No. Enter measurements you have taken in metres. The 3D view is an illustrative layout, not a survey or construction drawing.
Ready to compare materials? Explore Kwila, pine and composite decking, or plan a deck with a Louvre Tech or Louvre Lounge pergola.