Stair stringer treads: rise and going

Our stair stringers range from 1-17 treads (steps) and are made for standard ‘rise’ and ‘going’.

The rise is the vertical measurement taken from one step level to the next. Standard rise is 175mm.

The going is the horizontal measurement taken from the front of one step to the next. Standard going is 250mm.

The picture bellow illustrates the rise and going of our stair stringers.

Stair Calculator - Stair Stringer Calculator, Prices, Australia

Stair calculator table

To work out the correct size stair stringer, you will need to know your height to deck. This can be found by measuring the vertical distance from the ground level to the height of the deck that you wish to connect.

Note: Also check that there will be enough room horizontally from the face of the deck to where the stringers will be fixed.

Once you have the height to deck measurement you can use the table below to find out which size stringer you need and the cost.

No. of tread pair Cost inc. ($)  Height to deck (mm) Distance from deck (mm)
1 117 350 250
2 127 525 500
3 142 700 750
4 172 875 1000
5 205 1050 1250
6 240 1225 1500
7 275 1400 1750
8 310 1575 2000
9 345 1750 2250
10 385 1925 2500
11 425 2100 2750
12 460 2275 3000
13 510 2450 3250
14 550 2625 3500
15 595 2800 3750
16 725 2975 4000
17 830 3150 4250
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How many step will I need? Explained

As explained above we have a rise of 175mm and a going of 250mm for all our stair stringers. So to calculate the number of treads (steps) you will need, we simply take the height to deck measurement and then divide this figure by 175 (rise height). We than take that final figure and subtract 1, as this final figure has given the total amount of rises and not total amount of treads.


A height of 2100 divided by 175 = 12  minus 1 = 11 treads required.

Certification Requirements

The certification requirements, for staircase construction and install in class 1 and 10 buildings, comes from the National Construction Code and Australian Standard AS1657.



stair rises


Why LevelMaster stringers?

We have designed our stringers to be compatible, without any modification, for both ‘bolt down’ and ‘concrete in’ fixings. This gives you two great advantages, first you can install bolt down stringers without damaging the hot dipped galvanised coating, and also allows you to change your mind and swap the feet at any time of the order. Our stair stringers are sold in pairs (you need 2 stringers per staircase) however treads over 1300mm in length require an extra stringer for support. Refer to our engineering documents. 

We take pride in all products and ensure the highest standards in manufacturing. When you buy LevelMaster products, you can always trust that you are buying the best in the business.

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Contact us

If you have any further questions about stair stringers, or need help calculating what you’ll need and how much this will cost, Contact LevelMaster. We’d be happy to talk you through your options.