![]() Here below an example of a popular Spiral Staircase Design. Otherwise, a simple way is to use a stair calculator you find on the web. If you do it manually, you need to start from landing platform coming down. Spiral staircase plan – Spiral Staircase Design Calculationĭraw a rough sketch to see where the entry step will be. Check this spiral staircase drawings as example. On a custom spiral staircase you can have the top landing in different shapes or larger to allow for a conformable staircase exit. Step 4: Determine theĭepending on the space you have at staircase exit, you certainly now need to find out the best position where to put the landing platform (staircase exit). May reduce the head clearance (see Step 6). ![]() We normally recommend avoiding square platforms as they Spiral Staircases UK Building Regulations In addition, we give you here below a reference table listing UK Building regulations. The value of risers and going have to be checked according to the building regulations of your area. Of steps will be then 11 + 1 landing platform. We can therefore have 12 risers of 225 mm each. For instance, this value has to be divided for the advised rise value which is between 220 and 240 mm. We take as example the floor to floor height of 2700 mm. Secondly, check the floor to floor measure and Spiral Staircase floor plan. Treads and Risers per 360 degrees turn Step 3. We will go for 12 as this will give us a wider center going (step of 30 degrees). On a spiral staircase drawing with a diameter of 1500 mm this chart is saying that we can have 12 or 13 steps per circle. Now that you know the spiral staircase diameter, you have to find out how many steps you need per turn of 360 degrees (the total degrees of a circle). ![]() Mm (or round diameter 1600 mm) the diameter of your staircase will be 1500 xġ500 mm (or 1500 mm diameter). If your stairwell square opening is for example 1600 x 1600 This is to be able to fit the staircase in an easy way and to allow for the hand to grab the handrail without touching the slab. Remember that the spiral staircase diameter will have to be 100 mm smaller than the ceiling opening. If the arrival floor of the staircase is a mezzanine and not a spiral staircase opening, you do not need to check this. The number of steps per turn (360 degrees circle) depends on the spiral staircase diameter you need.įirstly check the measures of the ceiling opening (stairwell opening) you have. Here below you find some useful indications to determine how many steps you need on your spiral staircase plan. Square staircases are in fact a little bit different, we will deal with this in In this article we are explaining how the round spiral staircases work. Height (staircase elevation) but also by the geometry of the circular shape The number of steps is in fact limited by the floor to floor Determine the location of the top landing platform. Likewise with this spiral staircase design guide you will learn how to design (and build) a perfect spiral staircase step by step. There are indeed some geometrical rules you need to follow and take into account to design a spiral staircase in the correct way and with the right dimensions. In terms of design, there are a number of technical issues you need to take into account when designing a spiral staircase.
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