Tell it the total rise — floor to floor — and how deep you
want each step, and it works out how many rises you need, how many treads that gives, the height of
each riser and how far the stair will project into the room. It draws the section as you type, so you
can see the stair before anyone cuts anything. Every figure is indicative; we confirm the final
geometry when we quote.
How do I measure my stairs?
Heritage Decorative Timber needs three measurements for an external stair:
the total rise from finished ground or floor level to the top of the
deck or landing, the width across the treads, and the available
going or projection. Measure in millimetres. Enter the total rise and
preferred tread depth below; the calculator shows the suggested rises, number of
treads, riser height and how far the flight projects. The result is an indicative
starting point, and the workshop confirms the final geometry when it quotes.
Does Heritage have a stair price calculator?
Yes. This page works out the stair geometry. The separate
stair-kit price calculator in the shop
uses the number of steps, kit width and timber choice to look up the applicable kit
price. The published calculator covers LOSP treated pine and Merbau; ask the
workshop to quote CCA. Select a complete kit, stringers, sawtooth support or
flight component. Published figures are
indicative, include GST and exclude delivery; made-to-order details are confirmed
in the written quotation.
What does a worked stair example look like?
For an illustrative 3,000 mm total rise, 900 mm
kit width and 240 mm tread depth, this calculator
suggests 17 rises, 16 treads, an indicative riser height of about 176 mm and
a projection of 3,840 mm. It is an example of the output, not project advice;
the workshop confirms the final geometry when it quotes.
The calculator
mm
The full vertical height the stair has to climb.
mm
The width across the stair — the length each tread is cut to.
Indicative only — we confirm the final geometry when we quote240 residential · 290 premium & wide
NextWhat it costs
Now put a price on it
This page works out the shape of the stair. The price depends on the
timber and the width, and those are on their own pages — every kit is priced by
the number of steps, so the step count above is the number you need.