Why 280 days of wood drying instead of the standard 30-60 days?

280 days of chamber drying isn't marketing—it's a technological necessity. In the first stage, timber sawn into 'frize' strips and air-stacked in piles with spacers is conditioned in ventilated workshops. That way we reduce moisture by 25–30% from the initial value as gently as possible. The second stage takes place in a vacuum-convective chamber with thermo-humidity treatment developed by our in-house engineering team. It is essentially the same natural process, scaled to an industrial workflow. Frize strips on trolleys with spacers enter the drying chamber. Hot air is the drying medium. Wood temperature is raised to +55 °C, then vacuum is applied with internal pressure reduced to 0.8 atm. Together, these conditions bring sap to a boil for 10–15 minutes per cycle. The cycle runs 48 times per day and continues until the wood reaches 9±1% moisture.

How do you work with clients and confidentiality?

100% of projects under NDA—this isn't optional, it's standard. We don't publish addresses, client names, or floor plan details without written permission. Photography only with client consent, often prohibited entirely. Our team signs personal non-disclosure agreements. For clients from public spheres (politics, business, culture), we can operate through structured legal entities without revealing the ultimate beneficiary. Payment possible via escrow accounts with bank guarantees from top-10 institutions.

Is the 25-year warranty real or just marketing?

Real, but conditional. The warranty covers structural integrity when the temperature-humidity regime (18-24°C, 40-60% humidity) and operating conditions are met.

What's the point of a comprehensive solution: floor + walls + furniture from the same wood?

First, aesthetics: unified grain pattern, tone, and transition from floor to panels, panels to kitchen facades creates a sense of cohesive space, as if the interior is 'carved' from a single block. Second, technology: using one timber batch, we guarantee identical reaction to humidity and temperature—floor and panels 'breathe' synchronously, no deformations at joints. Third, logistics: one supplier, one installation cycle, unified warranty. For clients: one call, design project with all technical nodes, one contract, one responsibility.

Can you restore 19th-century parquet in cultural heritage sites?

Yes, it's one of our core competencies. We've worked in the Kremlin (Red Square), Vaganova Ballet Academy, dozens of estates and mansions. Process: complete documentation (photos, measurements, species analysis, identification of historical installation techniques), then dismantling damaged areas while preserving 80-90% of the original, restoring lost planks by matching timber species, grain, and grade. Finishing layer restoration with application of protective coating (lacquer or oil) to extend service life.

Solid timber stairs: load calculation, joints and acoustic comfort

A solid stair rarely “squeaks from bad species” — more often from micro-play and a march that is too soft under dynamic load.

The real question is a decorative flight “for the interior”, or a load-bearing structure with tread geometry, supports and acoustics calculated.

Here’s stringer and kosour, squeak physics, tread geometry, one batch with the floor, and when a metal frame with wood cladding is the honest call.

A stair in a premium project is not “pretty-coloured treads” and not listed-building heritage work.

It is a load-bearing structure: foot impact, torsion, load transfer into the substrate, sound into neighbouring rooms.

Species and finish from one batch with the parquet remove “two oaks” at the march–floor junction — but do not replace joint calculation.

Below — march engineering: from tread geometry to acoustics, without a catalogue showcase.

How does a kosour differ from a stringer in how the march works?

A kosour (cut string) carries treads on top: load goes into the march beam and on to supports. A closed stringer holds treads from the side — a different stiffness scheme and a different squeak character at the tread–stringer joint.

Choosing the scheme is not designer taste: it is opening survey, span, supports and how the march meets walls and floors. A wrong scheme puts play where lacquer will never help.

Rails and balusters are a separate safety and stiffness loop; they are calculated with the march, not “bolted on later”.

March scheme is engineering, not décor.

Joint	What it affects
Kosour	span stiffness, tread bearing from above
Stringer	side housing of treads, different play character
Supports / anchors	load transfer into the substrate
Balustrade	safety and march “ring” under load

CatalogSolid timber stairsA march with load calculation — not “treads to match the floor colour”.Read more →

Where does a squeak come from — and why lacquer does not cure it?

A squeak is almost always friction in a micro-gap: tread to kosour or stringer, riser, fixing, wood shrink in dry air. Two parts breathe slightly — you hear the squeak.

Dampers, correct fixings and shop moisture control cut the risk. “Just varnish it” over live play conserves the problem: the sound returns within a season.

If the march already stands and squeaks — joints first, finish second: see stair and panel restoration. A new march is designed so you do not start that loop.

Why does tread geometry matter more than a “pretty nose”?

Riser height and going must be even through the march: the foot does not forgive “almost the same”. Codes and ergonomics are the frame; nose aesthetics sit inside it.

A 3D flight model before the shop catches clashes with the opening, landings and rails. “We’ll trim on install” almost always hits stiffness or step rhythm.

Building settlement and site humidity are included: the stair goes into a live house, not an ideal drawing.

Why one batch with the floor?

Tone and shrink of oak (or another species) on the march and in the parquet should age together. A different batch gives a “two-tone” seam at the first tread within a year.

Finish is the same system as the floor, adjusted for tread wear: stairs often live harder than a living room.

The stair is not ordered “separately later” once the floor is already chosen from another lot — that breaks the point of single batch.

When is metal with wood cladding the honest call?

Long span, complex cantilever, hard vibration limits, or when solid timber alone will not hold the calculation — a metal frame with wood cladding on treads and visible strings/kosours.

That is not “cheaper” — it is different engineering: metal carries, wood gives touch and tone in the interior batch. Cladding joints and acoustics are designed ahead.

Do not confuse it with “clad any ready frame somehow”: thickness, fixings and wood movement on metal are separate joints.

Can you design and build a march yourself?

In basic terms — a simple straight flight in a private house: if you have a survey, understand step rhythm and accept joinery tolerances.

In practice it is easy to leave play in a joint, uneven rise or weak supports — and get a squeak people “cure” with lacquer for years. Spiral and cantilever schemes are high-risk.

If the span is large, you need one batch with floor and panels, or a quiet march matters — better a 3D project, shop and install by card.

How does a job run with us?

Survey and 3D → scheme and joint calculation → production with moisture control → install with support and play checks → finish → handover with tread care schedule.

Guide: survey and model often ~two weeks, manufacture 4–6 weeks, install a few days; dates are in the contract after survey. If the march already stands and is tired — the stair restoration track, not “new lacquer over a squeak”.

In brief

Why make the stair from the same batch as the floor?

So tone and shrink stay aligned for years. A stair is load-bearing: kosour/stringer, step geometry, squeak control; species and finish sit in one spec with the parquet.

Where does a squeak on a new stair come from?

Most often micro-play at a tread joint or fixing, plus dry air. Lacquer over play does not cure it — you need the joint, fixings and ~40–60 % climate.

When do you need a metal frame?

On long spans, cantilevers and hard vibration limits — metal carries, wood clads in interior tone. Decided on calculation, not taste.

How long does stair production take?

Typically survey and 3D ~2 weeks, manufacture 4–6 weeks, install a few days. Dates are fixed in the contract after opening survey.

Can you renew an old stair instead of building new?

Often yes: stop play first, then finish. See the stair and panel restoration article. If geometry and tread thickness are spent — a new march is more honest.

What does a solid stair cost?

After survey: march scheme, species, balustrade, frame if needed and finish — in the estimate and contract.

Need a site diagnosis — describe the floor or joinery.

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