Hello,
As mentioned above, we need to level our concrete stair treads by about 4cm (1.5 inches) each. Plus a bit more on the tread depth. There are 45 steps in total! Vinyl planks will be glued onto the steps.
The site manager says that a screed would be ideal, but that is probably also the most expensive option. A friend who works with screed, but not on stairs, said this could also be done using a quartz sand leveling compound, and then I read online that cement mortar can also be used. I also came across the term “synthetic resin mortar.”
Now, to the experts on this forum: what is the correct approach and method?
We already have a quote for screed: €3000 plus an accelerator at €10 per step.
Thank you very much in advance.

As mentioned above, we need to level our concrete stair treads by about 4cm (1.5 inches) each. Plus a bit more on the tread depth. There are 45 steps in total! Vinyl planks will be glued onto the steps.
The site manager says that a screed would be ideal, but that is probably also the most expensive option. A friend who works with screed, but not on stairs, said this could also be done using a quartz sand leveling compound, and then I read online that cement mortar can also be used. I also came across the term “synthetic resin mortar.”
Now, to the experts on this forum: what is the correct approach and method?
We already have a quote for screed: €3000 plus an accelerator at €10 per step.
Thank you very much in advance.
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