Technical Q&A – The Answers to All of Your Wheelchair Access Questions

Find answers to any general queries here

    1. What pit depth is required?
    2. What space do I need behind the staircase?
    3. There is a corridor in the basement under the lift pit which people still need to use. What head height space do I need to keep in the corridor?
    4. My staircase width is 1000mm. Is this wide enough for a Sesame lift?
    5. The total depth of the stair treads (the horizontal part of the stairs) is 1400mm. Then there is a pavement which is owned by the council. Is this ok?
    6. I do not have enough pit depth!
    7. Do I need barriers?
    8. My steps have ‘ball noses’ i.e. protruding rounded bits on the end of each step. Is this ok?
    9. What power supply is required?
    10. Are there any other costs?
    11. My staircase is over a basement flat. I still want a Sesame lift. Is this possible?
    12. My staircase is curved. Can I have a Sesame lift?
    13. I need a really large platform area on my lift. Is it possible?
    14. Do Sesame lifts comply with European Standards?

1

What pit depth is required?

back to top This is the area under the lower floor level, which houses the platform lift mechanisms. The pit depth is dependent on the rise of the staircase. Take a look at our pit depth chart below: Table 1: pit depths Pit Depth Table

2

What space do I need behind the staircase?

back to top Horizontally retracting stairs will disappear into the void behind your staircase. For no more than five steps, we require a minimum of 1200mm space. This area tends to be underneath the front door of the property, so we’ll need to check the space is available. For more than five steps, see our equation below: Length of Stair Pit = ((Total Tread Depth from top step riser to bottom step riser – 1555)/2)+1200 Minimum Total = 1200mm It’s also possible to consider vertically retracting stairs – talk to our team for help in deciding.

3

There is a corridor in the basement under the lift pit which people still need to use.  What head height space do I need to keep in the corridor?

back to top If people are using the space below the pit, e.g. in a room or corridor, then a minimum of 1800mm head height must be maintained at all times.

4

My staircase width is 1000mm.  Is this wide enough for a Sesame lift?

back to top The minimum width of a staircase needs to be 900mm and 1400mm deep in order to accommodate a Sesame lift. This is to ensure that the usable space on the platform is sufficient, even with things like rising posts on the lift. The standard size for one of our platform lifts is 1000mm wide by 1400mm deep – much preferable to the minimum size.

5

The total depth of the stair treads (the horizontal part of the stairs) is 1400mm.  Then there is pavement which is owned by the Council.  Is this OK?

back to top The total depth of the stair treads needs to be minimum 1424mm.  This is to house the 1400mm deep platform lift plus 24mm trim and gaps.  To overcome this problem, the staircase would need to be moved back by 24mm.  We cannot use pavement owned by the Council as this is outside the Client’s property boundaries.  The Council would not approve its use. If rising barriers are required on all three sides of the Sesame lift, the total depth of the staircase needs to be 1750mm to allow 300mm width of the rising barrier.  The retracting stairs do not have to cover the platform lift plate. The platform lift plate will be clad in lower landing material and therefore will blend into its environment.  This example can be seen on our Sesame lift at Beaumanor Hall, Leicester.

6

I don’t have enough pit depth!

back to top If you have concerns about pit depth, please contact us – we may still have a solution for you! Our design team can work around pit restrictions to some extent, such as when the area below is used for rentable space. Get in touch and we’ll have you find the correct solution.

7

What barriers do I need on the Sesame lift?

back to top Yes. The following barriers will apply:

Table 2: Barriers

Barriers Table The purpose of the lift, and the people it is intended for, will also help to dictate the type of barriers and enclosures used.

8

My steps have ‘ball noses’ i.e. protruding rounded bits on the end of each step.  Is this ok?

back to top Unfortunately not. When the steps retract, then all noses will cause a series of finger traps, which contravenes British Standards. The steps would have to be reformed with straight edges, so when the steps retract, there are no finger traps. We can carry out this process for you and will include the cost within your quote if necessary.

9

What power supply is required?

back to top The power supply needs to be a 3-pin, double socket, 16 amp supply, 240 volts. It should be located within the pit or machine room if applicable. Our designer will send you a drawing of the exact location of the required power supply. You will need either a type C or D motor-rated breaker. For extremely large lifting platforms, we may need 3-phase power – our team will be able to help discover what you needs are.

10

Are there any other costs?

back to top Civil works is required to prepare and strengthen to pit, put in any required structural supports, and prepare the electrics. We can provide the structural surveys and undertake all the buildings works for you – the advantage of this being that we can project manage the builders and work closely with your architects to ensure the project runs smoothly.

11

My staircase is over a basement flat.  I still want a Sesame Lift.  Is this possible?

back to top Yes! We have completed project in such properties – we can show you photos of how we did it, and even arrange a viewing if you want. Give us a call.

12

My staircase is curved.  Can I have a Sesame Lift?

back to top As above – yes! We have installed lifts in curved staircases before. Contact us for some pictures or to arrange a viewing.

13

I need a really large platform area on my lift.  Is it possible?

back to top Of course! Contact us for some examples. We pride ourselves on our ability to adapt our lifts to your needs and demands.

14

Do Sesame lifts comply with European Standards?

back to top Our lifts are CE Marked.   CE marking is a key indicator of a product’s compliance with EU legislation and enables the free movement of products within the European market.   Sesame lifts comply with the Machinery Directive (2006/42/EC), including the relevant Harmonised Standards e.g. EN81-41.  Sesame has issued a Declaration of Conformity to prove we comply with European Standards, including European CE mark.  We will translate our Declaration of Conformity into any European Language for your local compliance certificate.