Here we will show the design of different styles of tread to help you with your staircase design. Beginning with the opening treads for the main flights.
These would have been traditionally on the ground floor in the main entrance hall, now days these are being used throughout the house.
I will run through the basic designs that may be used to start your stairs. The examples I give here will be for the bottom of a straight flight that has space around it without being restricted by the building structure.
I will use the cut string style of stairs to demonstrate, so no newel posts will be set at the 2nd riser, some of these design will be suitable for using a newel post set onto the bottom tread.
The treads will generally be to support Either a Monkey tail, opening cap or Rams horn start to your stairs. These will more often than not be supported on either a cast or turned newel post, Therefore it is best to have the end detail created in a solid to be able to bolt down through and give the stability required to stop the post from lateral movement.
We can start with the straight tread but I doubt I need to demonstrate that!
Therefore I will start of with the next most basic tread.
The “D” tread is named due to the look of the ends of the tread, this is a fairly straight forward design without to many calculations required, you will need to do some drawing to dependant on the feature you wish to have sit over the “D” the normal options for this style of tread will be an offset opening cap or a Monkey's tail. Dependant on the feature you are using to start the handrail will change the amount the “D” is set outside of the main flight.
This is basically the same as above but farther back round to finish under the third riser. This makes a slightly bolder statement than just being set in front of the stairs but does require a good bit of space. The handrail can start as with the “D” tread set in front but does require a bit more effort when using a Monkey's tail to make sure that the spindle positioning and post if used work correctly.
This combines the two, the start to the handrail will normally begin on the 2nd tread, should you decide to set it over the lower tread then you have to be careful again to get the setting out correct. There is nothing to stop you going for a 3 tier stack.
The curtail is one of the fanciest starts to a stair, it is designed solely for the Monkey's tail and the curves in the tread match the curves in the handrail. This is one of the harder treads to manufacture. The Monkey's tail normally be set on either a cast Iron newel post or a “Birds cage” of spindles. This will need to be drawn accurately before manufacture to get everything looking right. The ends of these treads will normally be solid so you can bolt the post down through the tread.
This is to further enhance the look of the tread and soften the start of the stairs. The commode tread with its gracefully curved front adds a refinement to the start of the stairs, the commode curtail is probably the nicest start to a staircase one can get.
Here you have the curtailed ends with the soft sweeping commode curve to the front of the tread.
This is just to give you a representation of the Monkey's tail set over the curtailed ends. We will be adding a section soon showing variuos options for finishing the handrail over the different tread options.