Same decor on each riser: how many carved rosettes RPU-069 116 × 60 mm to order for the entire flight of stairs

The staircase is already built, the steps are satisfactory in material and shape, and the railings don't need to be changed. But when looking at the flight, there remains a large monotonous surface—a row of identical smooth risers. It's here that repeating decor can create a completely different effect without requiring a full staircase redo.

One option is to install one carved rosette RPU-069 on each selected riser.

RPU-069 is an elongated decorative polyurethane element measuring 116 × 60 × 11 mm. The current price at the time of writing is 980 ₽ per piece. The product page allows ordering the item individually.

But with a staircase of 10–18 steps, this is no longer a purchase of a single small decorative element. An error in quantity turns into either a shortage of one or two pieces during installation, or extra items in the order. Worse still, if the entire batch is bought before the 116 × 60 mm size is checked on an actual riser.

Therefore, the correct sequence here is:

first, try one RPU-069 at a 1:1 scale → determine which specific risers will be decorated → count their number → decide if a reserve is needed → calculate the cost → only then place the order.

If the size has already been checked and fits, you can buy the carved socket RPU-069 you can do it directly on the product page.

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What is RPU-069 and why is it convenient to consider it as a repeating element

For a staircase, the shape of the product itself is important.

RPU-069 is not a round ceiling rosette of large diameter, but a compact elongated decorative element. In the STAVROS card, its size is specified as 116 × 60 × 11 mm and the material is polyurethane.

This allows the product to be viewed not as a single center of a large wall, but as a small repeating detail.

In a stair flight, such repetition works differently than a single overlay on furniture or a wall. Here the viewer immediately sees a sequence:

riser → ornament → riser → ornament → riser → ornament.

If the position of all elements matches, individual RPU-069 units begin to be perceived as a single decorative system.

Therefore, before ordering a batch, you need to control not only the quantity.

Four parameters are needed:

• the dimensions of one RPU-069;

• the actual size of the front part of the riser;

• the same placement axis;

• pattern repetition across the entire flight.

This is especially important on a staircase, because a slight shift of one detail is more noticeable precisely in a series. A person perceives a single rosette separately. Ten identical ones are automatically compared with each other.

First, check the size 116 × 60 mm on one real riser

The most expensive mistake in such a project is to immediately order 12, 15, or 18 rosettes, and then find out that one RPU-069 is visually too large or too small.

For the first test, purchasing the product is not necessary.

Make a paper template 116 × 60 mm.

Since the task involves horizontal placement of the elongated rosette, apply the template in the same position.

Suppose the visible front surface of the riser has:

• width — 900 mm;

• height — 170 mm.

Vertically:

170 − 60 = 110 mm.

With precise centering, what remains is:

110 / 2 = 55 mm

at the top and bottom.

horizontally:

900 − 116 = 784 mm.

After centering:

784 / 2 = 392 mm

on each side.

Such arithmetic does not indicate that the placement is automatically aesthetically pleasing. It shows the real scale: the socket occupies a relatively small part of the wide riser and has enough free space around it.

Now this result can be seen physically — attach a paper template with painter's tape and look at the staircase not up close, but from a normal viewing point.

Our factory also produces:

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Why you cannot choose the size based only on the step width

For RPU-069, it is easy to fall into a trap: see 116 mm, compare them with a staircase 900–1000 mm wide, and decide that the element is small and definitely fits.

But on the riser, the height of 60 mm is more often critical.

Let's consider several options:

Height of the visible part of the riser	Height of RPU-069	Free in height	When centering from top and bottom
100 мм	60 мм	40 мм	20 mm each
120 мм	60 мм	60 мм	30 mm each
140 мм	60 мм	80 мм	40 mm each
160 мм	60 мм	100 мм	50 mm each
170 мм	60 мм	110 мм	55 mm each
180 мм	60 мм	120 мм	60 mm each
200 мм	60 мм	140 мм	70 mm each

The table is not a standard for offsets. It is needed to see the proportion.

On a riser 100 mm high, the decor occupies 60% of its height. The visual effect will be much denser.

At a height of 170–180 mm, there is significantly more calm background around the ornament.

Therefore, two stair flights of the same width may require different solutions solely due to the riser height.

If after the template the RPU-069 size seems unsuitable, it is better to first look at others Decorative polyurethane rosettes, than to buy the entire batch on the principle that "116 mm will definitely fit."

One socket on each riser or only on part of the flight

Before calculating the quantity, a more important question must be resolved: what exactly to count.

The number of steps and the number of decorative RPU-069 do not necessarily coincide.

Different schemes are possible.

All visible risers of the flight

The most understandable option: one element for each vertical front surface.

For example:

15 decorative risers = 15 RPU-069.

This creates the most stable rhythm.

Only the main straight flight

If the staircase consists of several sections, you can decorate only one visible flight, leaving the landing and the second section plain.

In this case, you need to count not the entire staircase, but only the selected series.

Every other riser

This is a completely different rhythm. It can reduce the number of elements, but the decorative result will be less dense.

Do not switch to the 'every other' scheme just to save money after initially designing an ornament on each riser.

First, you need to look at the layout of the entire staircase.

Only the central visible part of the staircase

If several lower or upper steps are almost hidden by furniture, a partition, or a turn, it sometimes makes no sense to automatically include them in the decorative sequence.

Here, the decision is made based on the actual view.

How to correctly count the number of RPU-069

Do not count "approximately 15 steps."

Walk the flight from bottom to top and assign a number to each riser.

For example:

1. bottom;

2. second;

3. third;

4. fourth;

5. fifth;

6. sixth;

7. seventh;

8. eighth;

9. ninth;

10. tenth;

11. eleventh;

12. twelfth;

13. thirteenth;

14. fourteenth;

15. last before the platform.

Then, opposite each one, put:

• decorate;

• we do not decorate;

• check separately.

Only the number of rows with the status "decorate" is included in the order.

This is especially useful for stairs:

• with a landing;

• with a turn;

• with winder steps;

• with an open lower part;

• with multiple flights.

If you get 15 decorative surfaces, the base cart is 15 RPU-069, not a "staircase package".

Since STAVROS indicates the possibility of shipping from a single piece, the quantity can be tailored to a specific calculation.

How much does a batch of 10, 12, 15, or 18 risers cost?

At the current price of 980 ₽ per RPU-069, the batch calculation looks like this.

Decorated risers	Main quantity of RPU-069	Cost without an additional part	If you add 1 spare	Cost with one spare
10	10 pcs.	9 800 ₽	11 pcs.	10 780 ₽
12	12 pcs.	11 760 ₽	13 pcs.	12 740 ₽
15	15 pcs.	14 700 ₽	16 pcs.	15 680 ₽
18	18 pcs.	17 640 ₽	19 pcs.	18 620 ₽

Here a commercially important difference arises between two questions:

"How many elements are needed for the project?"

и

"How many items should be put in the order?"

If 15 risers are being decorated, the project requires 15 installed RPU-069 units.

But the cart may contain 15 or 16 pieces depending on whether a spare is needed.

After calculating the quantity carved polyurethane rosette RPU-069 it makes sense to order as a specific batch rather than adding items to the cart by eye.

Is one spare RPU-069 needed

The automatic rule "must buy +10%" is not very convenient here.

For an order of 10 items, 10% is one piece.

For 18, mathematically it's already 1.8 pieces, but buying 1.8 rosettes is impossible.

It is much more useful to assess the real risks.

A spare RPU-069 may be reasonable if:

• installation is done for the first time;

• the base is complex;

• elements will be additionally painted;

• the staircase must have perfectly identical decor along the entire flight;

• mechanical damage is possible during repairs around it;

• one wants to have an identical part for future local replacement.

But the spare should not turn into an automatic overpayment.

If installation is done by a specialist, all surfaces are already prepared, the product is fitted, and access to the order is maintained, you can buy exactly the calculated quantity.

Practical approach:

N decorative risers = N required sockets.

N + 1 = option with one spare part.

For a flight of 15 risers, this is respectively:

• 15 pcs. — 14,700 ₽;

• 16 pcs. — 15,680 ₽.

The difference for the spare is the price of one socket, i.e., 980 ₽ at the time of writing.

What to do with the last riser before the landing

This is where mistakes are often made in counting.

The last visible vertical section can be perceived:

• as a full part of the flight;

• as a transition element;

• as part of the landing;

• almost disappearing entirely from the main viewpoint.

There is no universal answer like "always place the last outlet" or "stop decor before the landing."

Make a mockup.

Secure paper templates on at least the top three steps:

• the penultimate one;

• the last one;

• the transition zone near the landing.

Look from below.

If the last element logically completes the rhythm, include it in the count.

If the decorative row visually ends earlier, there is no need to buy an extra RPU-069 just because formally there is another vertical surface there.

Winder steps cannot be counted as a regular straight section.

On a turning staircase, the geometry changes.

With winder steps, treads have different depths, and risers may be perceived at a different angle.

Even if their actual height is the same, the frontal visibility of RPU-069 changes.

Therefore, the scheme:

one riser = one socket

may remain quantitatively correct, but the position of each piece must be checked separately.

Especially important:

• visible center of the surface;

• viewing angle from below;

• transition from a straight flight to a turn;

• maintaining consistent height of the decor.

Do not try to automatically continue one straight marking line through a turn if the surface visually already works differently.

Why equal installation height is more important than the perfect geometric center of each piece

Suppose several risers have slight visual differences due to finish, baseboards, shadows, or construction.

If you center each RPU-069 independently of the adjacent one, the ornament line may start to "jump" up and down.

On a staircase, the eye clearly sees repetition.

Therefore, before installing the entire batch, a single principle must be chosen.

For example:

• the center of each rosette by the height of the visible surface;

• equal distance from the top edge;

• Same distance from the bottom edge.

Which option is better depends on the specific staircase.

But the rule must be the same for the entire series.

It is useful to pull a temporary control line or use a laser level where the geometry of the flight allows it.

Center the RPU-069 across the width of each riser

For a regular straight flight, this is a good starting scheme.

If the visible width of the riser is 900 mm and the socket takes up 116 mm, the mathematical center allows leaving equal margins.

But again, you need to calculate the visible front surface, not the nominal width of the staircase.

At the edges there may be:

• stringers;

• stringers;

• decorative side panels;

• wall baseboards;

• protrusions.

If they visually eat up part of the width, centering the decor relative to the full construction size may be incorrect.

First, determine the boundaries of the decorative field specifically.

What to do if the staircase adjoins the wall on only one side

An asymmetrical staircase can visually create a sense of a shifted center.

For example:

• on the left — a massive wall stringer;

• on the right — open balusters;

• Or vice versa.

At the same time, the mathematical middle of the riser remains the same.

There is no need to immediately shift the RPU-069.

First, make two templates:

• one strictly according to the geometric center;

• the second with the presumed visual offset.

Compare the staircase from the lower viewpoint.

If the offset truly improves the composition, it must be the same across the entire series. Random individual positioning of each element will ruin repeatability.

Thickness of 11 mm: why a frontal template is not enough

The size of RPU-069 is 116 × 60 × 11 mm.

Paper will show the first two dimensions, but not the third.

After installation, the decorative rosette protrudes relative to the surface of the riser.

This is especially important for stairs, since feet are constantly moving nearby.

One should not automatically conclude that 11 mm necessarily creates a problem or, conversely, never interferes.

The specific geometry needs to be checked:

• how deeply the riser is recessed relative to the edge of the tread;

• whether there is a protruding nose of the step;

• how a person places their foot when climbing;

• whether the rosette is located too close to the lower or upper zone;

• how much the relief is protected by the step structure itself.

To check, you can make a simple three-dimensional mock-up: add a spacer of approximately the corresponding thickness to the paper template.

This shows how the element will appear in real space.

First one test position, then the whole batch

When purchasing a large quantity, it is especially useful to split the decision into two stages.

Stage 1 — confirming the scale

Check:

• 116 mm horizontally;

• 60 mm vertically;

• position;

• appearance from a distance.

Stage 2 — serial repetition

Only after approving the first element, mark out the rest.

You should not install the first five outlets and then decide whether you like the mounting height.

A mistake repeated 15 times becomes expensive precisely because of its serial nature.

Should all outlets be oriented the same way

Yes, if the RPU-069 pattern has a readable orientation and the task is to create a repeating ornament.

Before installation, lay out the entire batch in one direction.

You can even temporarily mark the back of each part with the same reference point.

This reduces the risk that one outlet ends up flipped relative to the others.

On a single element, such a mistake may go unnoticed.

In a series of 15 identical parts, a disruption in rhythm is more likely to catch the eye.

Is it useful to first lay out the entire set without glue?

Yes.

If the parts have already been purchased, do not start assembly with the first step immediately after opening the box.

First, lay out the items and compare:

• dimensions;

• condition;

• orientation;

• appearance;

• the chosen sequence.

After that, arrange them by riser numbers.

For example:

RPU-069 No. 1 → step 1

RPU-069 No. 2 → step 2

and so on.

For an identical serial composition, such preparation is more useful than randomly taking the next part from the packaging.

When RPU-069 may turn out to be too large

Physical placement does not yet guarantee the correct scale.

RPU-069 may be perceived as large if:

• the riser is low;

• the staircase is narrow;

• the surface already has an active pattern;

• an additional molding is located nearby;

• the ornament itself is painted in contrast.

Pay special attention to the height of 60 mm.

On a riser with a height of 100 mm, this already constitutes a large part of the vertical field.

If the pattern looks cramped, there is no need to order the entire set just to keep the selected article.

Open the section buy polyurethane rosettes and compare another size.

The RPU-069 card is located precisely in the polyurethane socket category, where you can switch to alternative models.

When RPU-069 looks too small

The opposite problem occurs on a very wide or tall staircase.

Suppose:

• riser width more than a meter;

• height about 190–200 mm;

• finish is solid color;

• there are almost no other details.

116 × 60 mm may look like a small badge in the center of a large empty surface.

In this case, increasing the quantity does not always help.

Two small sockets on each riser will create a completely different pattern and effectively double the order volume.

First, it's wiser to look Decorative polyurethane rosettes and check if there's a more suitable format.

A good batch of 15 identical elements starts with the right choice of a single element.

Why two RPU-069 per riser is already a different expense item

Let's imagine 15 risers.

One socket each:

15 elements.

Two each:

30 elements.

At a price of 980 ₽, the cost of the sockets themselves doubles.

Therefore, the idea "one seems small — I'll install two" requires a separate compositional check.

You need to determine:

• the distance between two elements;

• identical side margins;

• ornament direction;

• whether the pattern becomes too dense.

If two sockets indeed look better, the project has the right to exist. But this is no longer the same calculation of quantity.

Painting RPU-069 separately or together with the risers

The finishing option greatly changes the perception of the series.

Socket in the color of the riser

This is a calmer solution.

The relief becomes noticeable due to light and shadow, and the repeating decor does not turn into fifteen contrasting spots.

On a staircase with a large number of elements, this approach is often useful precisely because it maintains a unified background.

Contrasting RPU-069

If the riser itself is light, and the socket is highlighted in a different color, each element becomes much more noticeable.

Then the size of 116 × 60 mm visually works more actively.

And at the same time, the following are more visible:

• slight displacements;

• differences in height;

• inconsistent orientation;

• marking errors.

Therefore, contrast requires more strict serial installation.

Painting before installation

Convenient if the socket color differs from the base.

But during installation, you need to be careful not to damage the finished coating.

Painting after installation

It can help visually unify the decor with the riser if the entire surface is painted in one tone.

The choice of technology depends on the actual finish of the staircase.

Base preparation is more important than the amount of glue

With a batch of 15–18 pieces, it's easy to focus on the number of sockets and forget that they all should hold equally.

Before installation, each riser needs to be checked.

The base must be:

• stable;

• clean;

• without peeling coating;

• suitable for the chosen mounting compound;

• sufficiently flat for contact with the decorative element.

If one riser differs from the others in material or coating, it must be considered separately.

For example, the following cannot automatically be considered identical:

• painted wood;

• laminated surface;

• tile;

• MDF;

• a previously lacquered part.

The mounting system works in contact between two materials: the back side of the decor and the specific base.

Which mounting material to add to the cart

In the RPU-069 card, among related products, STAVROS shows KUDO Glues Everything HIGH TACK, white, 280 ml; at the time of checking, its price on the website is 990 ₽.

You can view it via the link buy glue for mounting decor.

But here you cannot make a false precise calculation like:

15 sockets = exactly one tube

or

18 sockets = two tubes

without confirmed consumption for a specific application method and surface.

The actual consumption is affected by:

• contact area;

• the amount of composition applied;

• evenness of the base;

• mounting method;

• losses;

• the need for additional work.

Therefore, the quantity of RPU-069 article can be calculated precisely, while the number of adhesive packages should be determined according to the instructions of the selected composition and the actual application method.

This is better than giving the customer a beautiful but unconfirmed figure.

Installation sequence for the entire batch

For serial decor, it is especially important not to install elements randomly.

The practical sequence is as follows.

1. Number the risers

From bottom to top or top to bottom — the main thing is to use one order.

2. Mark the central axes

On each decorated riser.

3. Choose a uniform height

And check it on several steps before installation.

4. Lay out RPU-069

All elements must have the same orientation.

5. Perform a dry fit

At least the bottom, middle, and top risers.

6. Check the staircase from a distance

It is at this moment that you can still change the system without dismantling.

7. Prepare the surface

Identical on all decorated areas.

8. Install sequentially

Ensure that the position does not gradually shift from step to step.

9. Monitor not only each socket, but also the entire row

After installing several elements, step back and look at the overall line.

On a staircase, serial accuracy is more important than the ideal position of a single individual part.

Do not start installation from the least visible step

Sometimes it is advised to first "practice where it is not visible."

For a repeating composition, this is debatable.

If you accidentally set the wrong height on an inconspicuous riser, you will then have to either change it on the following steps or repeat the mistake throughout the entire flight.

It's better to first make a full paper or temporary mockup at several levels.

Installation begins only after the overall system is approved.

How to calculate an order with two stair flights

If the staircase has a landing and two flights, do not add the steps automatically.

Make a separate calculation:

Flight 1 — N1 sockets

Flight 2 — N2 sockets

Landing or transition — N3, if the same decor is used there at all

And only then:

N = N1 + N2 + N3.

This helps not to lose one riser in the transition zone and at the same time not to include in the order a surface that was decided to leave without decor.

If one common style is needed on both flights, buy all RPU-069 sockets logically as one calculated batch.

What to include in the ready-made basket

The basket should be formed not by feeling, but based on measurements.

For example, with 15 risers to be decorated:

Option without reserve

• RPU-069 — 15 pcs.

• cost of sockets — 14,700 ₽;

• installation material — according to the chosen technology.

Option with one spare

• RPU-069 — 16 pcs.

• 15 go to the stairs;

• 1 remains as a backup;

• cost of sockets — 15,680 ₽;

• mounting material — separately.

If the size 116 × 60 × 11 mm has already been tested and suits you, you can buy the carved socket RPU-069 you can order the required quantity right away.

If a different scale is needed after trying it on, it's better to go to the section buy polyurethane rosettes and change the model before, not after, ordering the batch.

For other elements of the same material, you can check You can buy ready-made stucco matching the Baroque style. Calculate the quantity: linear meters of cornices and moldings, number of rosettes, pilasters, consoles, corner elements. Add a ten to fifteen percent allowance for trimming..

The catalog of polyurethane products indeed includes various categories of decorative molding, not just RPU-069.

When it's better not to use a single article for the entire staircase

Repetition is a strong technique only when the staircase architecture supports the rhythm.

There are situations where the same RPU-069 on each riser may be redundant.

The steps themselves are already very decorative.

For example, an active wood texture, complex tile, or contrasting pattern.

There are carved side panels.

Then fifteen additional ornaments may overload the composition.

The balustrade is extremely rich.

If balusters, posts, and handrails already have a lot of carving, risers do not necessarily need to be decorated with the same intensity.

The risers vary greatly.

Especially on non-standard turning sections.

RPU-069 looks randomly small.

In this case, there is no need to save the solution by quantity.

You can look at others Decorative polyurethane rosettes and choose a scale that better suits the staircase architecture.

Errors when ordering a batch of RPU-069

Error 1. First count the steps, then choose the size

The buyer sees 15 risers and immediately adds 15 items to the cart.

Why this is bad: it has not yet been verified whether 116 × 60 mm fits.

The correct order: first one 1:1 template, then the batch.

Error 2. Count all the steps in the house

The staircase may have two flights, a landing, and sections that were decided not to decorate.

Consequence: excess quantity.

Check: numbering only selected risers.

Error 3. Not including the last visible riser

Consequence: the rhythm unexpectedly breaks before the landing.

Check: view the entire flight from the bottom before placing the order.

Error 4. Buying a percentage surplus without a practical reason

Consequence: redundant parts.

Solution: separately decide whether exactly one spare element is needed.

Error 5. Marking each step independently

Consequence: the series starts to 'wander' in height.

Solution: one marking system for the entire flight.

Mistake 6. Not checking the 11 mm depth

Consequence: frontally everything looks good, but the actual protrusion turns out to be unexpected.

Solution: make a simple three-dimensional mock-up.

Mistake 7. Changing the direction of the ornament on individual steps

Consequence: one RPU-069 stands out from the entire series.

Solution: orient the entire batch identically in advance.

Mistake 8. Calculating adhesive consumption by the number of rosettes without manufacturer data

Consequence: either a shortage of material or an unjustified surplus.

Solution: count the number of decorative elements accurately, and adhesive consumption according to the instructions and technology.

Quick table before placing an order

What to Check	What should be known before purchase
Model	RPU-069
Product type	Carved decorative rosette
Material	Polyurethane
Size	116 × 60 × 11 mm
Price	980 ₽/pc. at the time of preparation
Size verified with a template	Yes
Number of risers to be decorated	Calculated per piece
Last riser	Included or deliberately excluded
Winder steps	Checked separately
Platform	Decision made separately
Image orientation	Identical
Installation height	Unified system
Reserve	0 or 1 pc. by conscious decision
Mounting material	Matched to the base
Final cart	N RPU-069 + mounting materials

Where to look for an alternative if RPU-069 didn't fit

No need to fit the ladder to a single article.

If the template 116 × 60 mm showed that the socket:

• too high;

• too low;

• too small in width;

• stylistically unsuitable;

Open buy polyurethane rosettes and compare the products of the category.

If the task becomes broader and besides risers you need to decorate other parts of the interior, you can look Polyurethane moldings.

Such a transition is better than ordering 15 identical RPU-069 just because this particular model was initially chosen.

FAQ

If the staircase has 15 steps, do you automatically need to buy 15 RPU-069?

Only if the staircase really has 15 decorated risers. The number of steps and the number of vertical surfaces selected for decoration need to be checked separately, especially near landings and turns.

Do you need to buy RPU-069 for the landing?

Not automatically. The landing is not a regular riser. First, determine if there is a vertical surface there that visually continues the row, and only then add the element to the calculation.

Can you install RPU-069 only on the lower steps?

You can, but it will be a different composition. You need to decide in advance where the series ends and whether it looks complete from the main point of view.

What is better: exactly 15 sockets or 16 with one spare?

If 15 surfaces are being decorated, 15 items are needed for installation. The sixteenth is a reserve, not a mandatory part of the project. The decision depends on installation conditions and whether you want to have an identical spare part.

Can I first order one RPU-069 for fitting, and then the rest?

Technically, the product page allows ordering from one piece. For a questionable scale, this is one of the safest options: first confirm the actual appearance, then buy the batch.

What to do if the riser height is only 100 mm?

RPU-069 with a height of 60 mm physically fits, but takes up a significant part of the surface. A full-size template is especially important here. If the composition looks too dense, it is better to compare other polyurethane rosettes.

Should all RPU-069 be strictly at the same distance from the top edge?

If the top edge is chosen as the baseline, then yes. The main thing is not the specific method, but its consistent application to the entire series.

Can two RPU-069 be placed on a very wide riser?

Such a composition can be considered, but the number of items will double, and besides the side margins, you will have to calculate the distance between the two rosettes. This is already a different project, which is better to first check with two templates.

Can the rosettes be painted to match the color of the staircase?

Yes, the trim can be considered as a way to combine repeating decor with the base. The specific technology depends on the material and coating of the riser.

Can contrasting coloring make a small RPU-069 more noticeable?

Yes, contrast increases the visual activity of the part, but it does not change its physical scale. If 116 × 60 mm is objectively too small for the surface, color does not solve the proportion problem.

Is it mandatory to use special mounting adhesive?

The mounting material must be compatible with the polyurethane rosette and the specific stair base. In the RPU-069 card, among related products, KUDO HIGH TACK is shown. You can view it here: buy glue for mounting decor.

How many tubes of adhesive will be needed for 15 RPU-069?

The exact number cannot be correctly determined only by the number of rosettes. A confirmed consumption rate of the chosen compound for a specific application pattern and the actual surface condition are needed. Therefore, it is better not to assume a made-up norm.

What to do if one riser is narrower than the others?

First, try to maintain the common axis of the series. If centering sharply changes the visual rhythm due to a different width, this step needs to be mocked up separately.

Do I need to take into account the thickness of RPU-069?

Yes. The third dimension is 11 mm, so it is useful to check not only the frontal template of 116 × 60 mm, but also the actual protrusion relative to the riser.

What to do if RPU-069 does not fit after trying it on?

Do not buy the entire batch. Go to the section Decorative polyurethane rosettes and choose a different scale before calculating the quantity.

Where can I order the entire calculated batch of RPU-069 at once?

Once the quantity is determined, you can go to the product card you can buy the carved socket RPU-069 and specify the calculated number of items.

In summary: first calculate the risers, not the sockets in the cart

With a repeating staircase decor, the buyer makes two different decisions.

First:

Is the RPU-069 with dimensions 116 × 60 × 11 mm suitable for a specific riser?

Second:

How many such elements are actually required for the entire flight pattern?

This order cannot be changed.

First, make a template of 116 × 60 mm, test it on the bottom, middle, and top risers, determine a uniform installation height, and ensure the scale is appropriate.

Then number only the surfaces to be decorated.

If the result is 15:

• 15 RPU-069 units are required for the staircase;
• the cost of the elements themselves at a price of 980 ₽ is 14,700 ₽;
• with one spare part, 16 RPU-069 will be required;
• the cost of the sockets will be 15,680 ₽.

Thus, the purchase turns from a vague "let's take a few decorative elements" into a specific specification.

If the size is confirmed, you can order the carved socket RPU-069 in the calculated quantity, and buy glue for mounting decor — after checking the base and the chosen installation technology.

If one template showed that 116 × 60 mm does not match the scale of the staircase, it is more profitable to stop before ordering fifteen parts and first look at other polyurethane rosettes.

This is exactly what a normal batch calculation consists of: first check one part, then correctly calculate the entire flight, and only then form the cart.