New Zealand Prime Minister Christopher Luxon will open the Southern Hemisphere’s first off-site production line to use cross-laminated timber as its structure later today, with Red Stag‘s VoMo factory at Rotorua already holding orders for 150 modules and built to reach 800 a year. That is according to Red Stag, whose announcement names German architects NKBAK and Austrian constructor Kaufmann Bausysteme as the partners behind a line backed by MPI’s Primary Sector Growth Fund.
“These factories are proving highly effective in Austria and Germany,” Marty Verry, Chief Executive of the Red Stag group, said of a system that completes the full fit-out inside every whole-room module before it leaves the line. Those efficiency savings, he said, cover the cost of running the factory and transporting finished rooms to building sites.
Poor labour productivity on New Zealand building sites is the impediment the line targets, according to Verry, with developers pushing to halve construction programmes and CLT supplying the rigid, lightweight shell that travels whole. Foundations proceed on site while the modules take shape in the factory rather than one after the other, a sequencing change Red Stag says removes one-third to one-half of the overall programme.
Locked-down factory conditions show up in developers’ feasibility models, with Verry claiming contingencies fall from 10 per cent to 5 per cent once work moves indoors and variations all but disappear, while buildings that open sooner cut the holding costs he calls real.
Stacking strength comes from the CLT itself, and Red Stag claims designs of 10 to 20 storeys are within reach, with module-to-module connections engineered to reduce acoustic flanking. The connection work builds on the first four modules assembled at Rotorua in July, rooms Dunning Thornton engineered for seismic zones with acoustics by Marshall Day.
Classroom blocks, apartments, townhouses, cabins, hotels, student accommodation, offices, and retirement care facilities are the markets the company names for the line, with Verry noting many of those sectors are highly sensitive to construction noise, truck movements, and disruption.
The design pedigree comes from NKBAK, the Frankfurt practice of Nicole Kerstin Berganski and Andreas Krawczyk, which turned Kaufmann-built timber modules into the European School Frankfurt in 2015. Berganski and Krawczyk now deliver modular timber schools across Berlin, and Kaufmann Bausysteme has since carried the format into the German Bundestag’s Berlin offices, installing 470 fully fitted modules in 15 months.
Scale is the next test, with Verry planning to run a few projects through the line over the next year or two to settle timings and costings. Kaufmann supplies between 4,000 and 5,000 modules a year from four factories, according to Red Stag, though Wood Central understands the Kalwang main line alone turns out more than 2,000 modules, at a site similar to Rotorua’s, which runs the Southern Hemisphere’s largest structural sawmill.
Red Stag used the announcement to press for strategic procurement policy, with Verry arguing a dollar spent on heavy-gauge steel buys high-emission imports rather than output from Glenbrook’s electric arc furnace. Only 60 per cent of the country’s cement is made at Golden Bay, with imports supplying the rest, and Verry says any CLT substitution cuts straight into the imported share.
“For decades, New Zealand has exported logs and imported value,” Jason Cordes, Managing Director of Red Stag Investments, wrote as the Government backed the programme in June.
The release names three policies the industry is pushing, the first a Wood Option Policy taking an optimised wood design through to preliminary design on every government project. Two more would bring Harvested Wood Products carbon storage into the Emissions Trading Scheme and require embodied carbon reporting at building consent for larger buildings.
That storage accounting already counts in New Zealand’s Nationally Determined Contributions without reaching wood processors, and Red Stag says the Cabinet Paper delivering the scheme National and Act promised at the last election is drafted and pending. New South Wales and many European countries already require consent-stage reporting, with software such as Nezo working inside standard design packages on a policy aimed at 12 per cent of global carbon emissions.
Crown money entered the programme in June, when Agriculture and Forestry Minister Todd McClay committed NZ$3.2 million over three years to the $8 million feasibility programme. That share matches the Primary Sector Growth Fund’s 40 per cent co-investment cap exactly, and McClay’s announcement claims every industrial-grade log converted into buildings becomes worth 6.7 times more.
Please note: Wood Central will update this story with more information throughout the day.
