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Enter 'Total Rise' of stairs, from lower floor to top of upper floor, allowing for floor coverings etc. Select 'Ideal Rise' from drop-down.
The number of rises and actual rise is calculated to fit closest to selected ideal rise. After calculating and re-drawing stair plan diagram, a drop-down list of possible alternate rises is displayed. Select alternatives to re-calculate and display stair plan diagram.
You can see all possible options before choosing the most suitable for your stairs.
Run options include:
'Ideal Run' Use selected run to calculate total run.
'Total Run' Calculate runs from total run entered.
'Use Angle' Runs are calculated to suit entered stair angle.
'Calculate Run' Runs are calculated by formula: Run = 630 - (rise * 2).
You can add or subtract a single rise with the +Rise or -Rise buttons to instantly re-calculate and re-draw stair plan diagram.
For concrete stairs, select 'Concrete Thickness' and enter the throat thickness (as per diagram) and 'Stair Width' to calculate formwork dimensions and concrete volume.
For timber stairs, select 'Stringer Width' and enter the width of the stringer.
To calculate and display upper floor opening for stair headroom, check the 'Headroom' check-box and enter desired headroom and total upper floor thickness. Upper floor opening to achieve entered headroom is displayed in stair plan diagram.
Be sure to check your local building regulations regarding all stair dimensions. (max and min rise and run etc).
Stairs built outside accepted code specifications can be EXTREMELY dangerous.
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Questions or Suggestions? ph: +61 7 40987645
ALWAYS CHECK WITH YOUR LOCAL BUILDING AUTHORITY BEFORE LAYING OUT
OR BUILDING ANYTHING
AND FOLLOW ALL LOCAL CODES. VERIFY ALL DIMENSIONS AND
ANGLES BEFORE CONSTRUCTION
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