Mass timber & modular construction consultancy

Concrete was never the smart choice. It was just the familiar one.

TimberCore advises developers, architects and contractors on the move to engineered mass timber — built on more than a decade of hands-on CLT modular delivery in Finland, now arriving in the U.S.

2014 the year our team started building with CLT modules, as pioneers of the method in Finland
20+ multi-storey residential buildings delivered using CLT modules, 2013–2024
4–13 storeys tall, the range of buildings our team has already built and occupied
2026 the year we commence U.S. operations, based in Pennsylvania
Why mass timber, specifically

The oldest new technology in construction

Cross-laminated and glue-laminated timber aren't a lifestyle choice. They're an engineering upgrade — panels stacked, cross-bonded and pressed under factory tolerances that a wet site can never match.

It stores carbon instead of spending it

Every cubic metre of mass timber holds roughly a tonne of CO₂, captured while the tree was still growing. Concrete and steel can only ever emit less. Timber is the one structural material that starts the ledger in credit.

It arrives finished, not raw

Panels are CNC-cut off-site to the millimetre — window openings, service chases and connections included — then trucked in as a kit of parts. The building site becomes an assembly line, not a workshop.

It is light on its feet

Mass timber structures carry a fraction of concrete's dead load. Smaller foundations, easier seismic detailing, and the option to build up on sites and podiums that would refuse a heavier frame.

It compresses the programme

Dry assembly means no cure time, no formwork, no waiting on weather. Crews erect a floor in days, not weeks — developers get to revenue, and to lender covenants, sooner.

It fails predictably

Heavy timber chars at a known, engineerable rate in fire, forming its own insulating layer. Structural performance in a fire event is calculable — not guesswork wrapped in cladding.

It is quieter to build and to live in

Fewer deliveries, less on-site cutting, less noise for neighbours during construction — and timber's mass and warmth continue to do quiet work on acoustics and comfort long after handover.

A word on why this took so long

Nobody doubts wood. They doubt the version of wood they're picturing.

Ask a developer why their last three buildings were concrete and the honest answer is rarely engineering. It's that concrete is what the last building was, what the lender expects to see in a pro forma, and what nobody ever got fired for specifying.

That's not a criticism. It's just how large, expensive, once-in-a-decade decisions get made under uncertainty — people copy the last safe-looking choice, not the best one. Mass timber has spent twenty years being technically ready and reputationally unfamiliar, which in construction is a far more expensive problem than any material property.

Our job isn't to sell you on wood. It's to make the unfamiliar choice look as boring — and as bankable — as the familiar one.

We can afford to say that because we're not asking anyone to take a leap of faith on an unproven idea. Our team has already built more than twenty CLT residential buildings, four to thirteen storeys tall, in Finland. By the time a design partner or investor asks "why timber?", you're not making an argument. You're showing them a track record.

Who's behind it

We've built this before. Just not here yet.

TimberCore's core team has been building with CLT modules since 2014, as pioneers of the method in Finland. That's the decade of hands-on delivery we're bringing to the U.S. market.

Arttu Suuronen

B.Eng., Civil Engineering

Over ten years in the industry, with hands-on delivery of CLT modular residential buildings ranging from four storeys to thirteen.

Olli Koistinen

MBA

Formerly CEO of a modular factory — production and manufacturing leadership across the full plant-to-site pipeline.

How an engagement runs

Three phases, in order, because the risk order runs the same way

01

Assess

We stress-test your site, program and budget against mass timber's real constraints — not its marketing. Structural feasibility, code path, panel lead times and an honest cost delta versus your baseline scheme.

02

Design

We sit inside your design and structural teams, translating timber-specific detailing — connections, fire strategy, moisture management, panel grids — into drawings your GC can actually price with confidence.

03

Deliver

We stay on through procurement and erection: qualifying CLT and glulam suppliers, sequencing panel delivery against your crane and crew, and closing out the details that turn a good design into a building that goes up on schedule.

What we're engaged to do

Consulting, not construction

TimberCore doesn't build. We sit alongside the people who do — developers, architects and general contractors — and carry the mass timber expertise most teams have never needed until now.

Interim executive services

Hands-on leadership for industrial CLT construction programs — brought in for the phase where your team needs the experience most.

Manufacturing planning & facility start-up

Planning, development and start-up of industrial construction manufacturing facilities, drawing on our own experience standing up a modular factory floor.

Modular project & production planning

Site installation planning, production process development and end-to-end manufacturing strategy for off-site construction — optimised for the technical and logistical realities of building in modules.

Design & engineering coordination

Production drawings and manufacturing documentation for modular construction, coordinating architectural, structural and production engineering. MEP and structural design services follow at a later stage.

Proof, not renderings

Some of what our team has already built

Twenty-plus CLT residential buildings, delivered in Finland between 2013 and 2024. Three of them, below.

Multi-storey CLT residential building with timber balconies, Finland
Multi-storey CLT residential building, Finland
CLT residential blocks with timber and light facades, Finland, winter
CLT residential blocks, Finland
A thirteen-storey CLT residential tower among surrounding mid-rise buildings, Finland
A 13-storey CLT tower — one of our tallest builds to date

Bring us in before the concrete decision gets made by default.

A feasibility call is the cheapest hour you'll spend on this project. We'll tell you honestly whether mass timber fits your site, budget and schedule — and what it would take to make it work if it doesn't yet.

Book a feasibility call