CLT Technology, Engineered Wood

What Is CLT?

CLT (cross laminated timber) is an engineered mass timber panel made from layers of timber boards bonded at right angles. This cross-laminated structure gives the panel strength, dimensional stability and the ability to work as walls, floors and roof elements.

This is not a "wood frame". It is a load-bearing panel system (slabs and walls) that delivers highly predictable construction and a premium result.
CLTMass TimberEngineered WoodCNC / BIMOff-siteInvestment-grade

In practical terms, CLT allows a house or villa to be designed digitally, produced in a factory and assembled on site with high precision. It is not a light timber frame and it is not a standard prefab module. It is a structural timber system.

A CLT house uses those panels as the main load-bearing walls, floors and roof structure. For Lefkada, this makes CLT house design a technical process: seismic loads, humidity, salt exposure, crane access and delivery sequencing are resolved before production, not improvised on site.

CLT panel, cross-section view
L1 · 0°
L2 · 90°
L3 · 0°
L4 · 90°
L5 · 0°
Transverse (0°), main direction
Right angles (90°), stabilization

The criss-cross arrangement gives the panel stability in both directions, behaving like a structural slab or wall rather than a skeleton frame.

WHAT DOES CROSS LAMINATED TIMBER MEAN

Three properties that change the construction logic

"Cross" means that each layer of timber is laid at right angles to the one before it. This gives the panel stability in both directions.

Stiffness
Rigidity

Minimal tolerance for unwanted distortion → a solid feel, "clean" geometry and a flawless finish.

Solid feel, clean geometry
Endurance
Strength

Reliable load transfer → supports demanding architectural solutions and high specifications.

Demanding architectural solutions
Millimeter accuracy
Millimeter Precision

"Snaps" together on site from the digital model (BIM) and CNC cuts, reducing errors, rework and "grey areas".

Fewer errors, clean schedule

INDUSTRIAL OFF-SITE PRODUCTION

How CLT is made

CLT performance begins before the construction site: wood selection, controlled drying, certified bonding and CNC processing. That's what we mean by high-end industrial off-site prefabrication, not something "improvised," but a heavy‑duty, engineered system.

01
Selection & Drying
Controlled conditions for stable behavior; timber moisture control determines the panel's long-term performance.
02
Layer configuration
Layers (usually 3, 5 or 7) set according to the required stiffness and thickness, derived from the structural analysis.
03
Bonding
Cross-layer arrangement and certified adhesive systems, the phase that "locks in" the panel's mechanical properties.
04
CNC Cutting
Openings, passages and panel geometry with factory level accuracy (±1mm). Based on digital BIM model.
05
Ready Panels
Ready for transport and rapid assembly, loaded in the same sequence they will be erected on site.
Factory, CNC Line
Industrial production
CLT / Mass Timber panels
XLAM DOLOMITI · off-site · high-end prefabrication
±1mm
Precision CNC cuts
3–7 layers
Layers per study
BIM integrated
Digital model → CNC
JIT delivery
Just-in-time delivery

PROJECT TYPES (PREMIUM APPS)

Where CLT excels

CLT excels in projects that demand clean geometry, a high-quality shell and a premium living experience, especially when the goal is luxury rental, investor delivery or a turnkey villa. See how this translates into practice at wooden houses and villas in Lefkada.

CLT in Lefkada →
01
Residences & villas
premium
Residential
02
Tourist units
hotel‑ready / turnkey
Hospitality
03
Housing complexes
repeatability + quality control
Multi-unit
04
Professional premises
identity + performance
Commercial

CLT, Glulam & roofing

Where does glulam fit into mass timber technology?

CLT is a solid load-bearing panel for walls, floors and ceilings. Glulam is glued laminated timber used for beams and special elements, ideal for timber roofs with large spans, an exposed finish and high structural demands.

In an integrated project, the two systems work together: a CLT shell for stiffness and speed of erection, a glulam roof for beams, trusses, exposed ceilings and architectural freedom. The final choice depends on the structural analysis, the loads, the spans and the aesthetic level of the project.

SEO / technical distinction

CLT

Mass timber panels, cross layers, ideal for a load-bearing shell.

Glulam

Linear or special elements, classes GL24 / GL28 / GL30 / GL32, ideal for roofs.

Glulam wooden roofs →

For full technical specifications and CLT national coverage: clt-greece.gr, CLT Technology

APPLICATION IN DEMANDING AREAS

CLT implementation in the Ionian, what changes

In environments with high seismicity, humidity and exposure, and tight timelines (tourist islands), success comes from meticulous preparation, specialized detailing and disciplined execution.

01
Excellent technical solution
Load-bearing system plus specialized connections; the structural analysis must meet the specific seismic requirements of the Ionian.
02
Protective shell
Waterproofing, airtightness and vapor control as a single system; correct layering is the only defense against the island microclimate.
03
Strict site coordination
Logistics, crane and phase sequencing: on an island, every "lost" construction day costs far more than on the mainland.

COMPARISON & TECHNICAL CHARACTERISTICS

CLT vs other methods, what makes the difference

CLT stands apart because it is a solid load-bearing panel system, with industrial reliability and architectural freedom, not a standard "box".

CharacteristicCLT / Mass TimberConcrete (Conventional)Light Timber FrameSimple Prefabrication
Load-bearing systemSolid panel/wallSkeleton + plate"Filling" skeletonStandard module
Manufacturing precision±1mm (CNC/BIM)±5–15mm (moulds)±3–8mmStandardized
"Wet" construction site phasesFewmany (concrete)AverageFew
Custom architecture100% custom designYesYesLimited
Construction weightLight → smaller seismic forcesHeavyLightweightLightweight
Time predictabilityHigh (off-site)ModerateModerateHigh
Documentation (CE/ETA)Full technical fileYesPartialOften incomplete
Living experiencePremium / biophilicNeutralWarmStandardized

WHAT YOU ACTUALLY GAIN

Five practical benefits of CLT in any project

Factory precision
Fewer corrections, clean finish.
Optimized phase sequence
Cost overruns and delays are reduced.
High-quality shell
Comfort, quiet and a premium energy profile.
Schedule predictability
Critical for seasonally targeted projects.
Reliable long-term performance
When the shell and construction details follow technical discipline.

GLOBAL DEVELOPMENT

Global evolution of CLT (mass timber)

Internationally, CLT is used in high-end projects because it combines mechanical performance, architectural freedom and clear production/manufacturing control.

70+
Countries using CLTAcross Europe, the USA, Australia and Japan
18+
Storeys in CLT buildingsTall-timber building records, where mass timber replaces concrete
40%
Smaller CO₂ footprintCompared to equivalent concrete construction (embodied carbon)
Comparison of erection speed, CLT vs Conventional
CLT / Mass Timber
~55%
Concrete (in-situ)
100%
Light timber frame
~75%

Construction time depends on the conditions of each project. Off-site preparation significantly reduces the time the site stays "open".

Basic standards
EN 16351CE MarkETADoPEurocode 5

CLT APPLICATION IN LEFKADA (INVESTMENT-GRADE)

Ready for a
premium project in Lefkada?

If you want a premium, investment-grade project in Lefkada, the first step is technical documentation: Ionian seismic requirements, island logistics, a protective shell and a clear scope of work and deliverables for an engineered shell or full turnkey delivery.