Fitting a sisal runner on stairs without underlay

I have a job which I'm a little unsure about and was wondering if someone could offer some advice.

I've got a customer who wants a sisal flatweave runner fitted on a spiral staircase but the problem with using underlay is that you can see the underlay underneath the sisal from certain angles, in the past I've just glued sisal onto underlay but this time I was considering fitting the sisal flatweave without underlay on the stairs but wasn't sure if that was a sensible solution or if it's foolish to fit sisal on stairs without underlay.

What would you advise?

Thank you for reading.

 

Is it a wooden or a steel staircase?

 

Hi Chris,

It was a wooden staircase.

 

Does it have risers or is it just stair pads?

 

It has risers.

 

For me I've never fitted without underlay, I usually cut the underlay back a bit on the sides and if nesasary pin the sides down, but not sure I'd fit without underlay, how about a thiner underlay?

 

I'd always prefer to use an underlay. Even more so on a staircase to give additional protection. As Chris stated perhaps try pointing out the advantages gained with using an underlay and offer them some ideas of what could be used

 

For some reason they were really fussy about being able to see the underlay from the side, hopefully I'll be able to convince them to have the underlay.

 

How about cut the underlay back and turn carpet under itself to fill the gap and pin.

 

It's not fitted full width, it's a runner with a cotton herringbone border.

 

3mm woodmate?

 

Use a thinner underlay. Don't put it in the riser or pin the sisal under the nose of each step and stick it to the riser


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Use technics underlay on treads only and pin each undernose looks best and lasts best this way i think