A recent visit to a new commercial build in Rangiora showcased a standout example of architectural timber cladding installed with precision. Designed and Delivered by Tuatara Structures, with Ascend Construction as the lead subcontractor on site. The project features a purpose‑built warehouse paired with a bespoke architectural office space.
While the warehouse provides the required functionality, it is the office area that gets the attention and immediately sets this project apart. Designed with a burnt larch charcoal cladding, the façade delivers a unique aesthetic not commonly seen on commercial builds in New Zealand.
Blacks Fasteners Limited Sales Professional Dean Oliver supported the build of this project, supplying technical product solutions from day one. Dean has worked with Kevin for many years, and their collaboration makes for a strong working relationship where they bounce ideas off each other all the time.
Dean noted, “This burnt larch finish isn’t something you see every day. It’s a special look, so the fixings needed to be spot on.”


Finding the Right Fixing Solution
Ascend Construction Site Foreman Kevin Paterson approached Dean during the planning phase with a specific challenge; how to fix burnt larch cladding without compromising the material or the visual finish.
Kevin came to me and said, “We’re doing burnt larch cladding on this build. What am I going to fix this with? Find me a solution.” Explains Dean.
After reviewing the requirements, Dean recommended the Anchormark S2 screw supplied in a black finish, allowing it to blend seamlessly into the dark timber surface.
Key features of the Anchormark S2 include:
- Self‑drilling tip for efficient installation
- Small head diameter to allow a clean, flush set
- Grooved shank providing strong hold‑down performance
Dean added, “The S2 just ticked every box - especially with the black coating. It was perfect for this job.”






Burnt larch requires careful handling due to the delicate charred surface. To ensure accuracy and avoid cracking, Kevin used Sutton HSS bits to pre‑drill every fixing point and used Wera driver bits for controlled installation.
The team created their own gauge to maintain consistent spacing, which is common practice for high‑quality cladding work. Every cut end was re‑charred using a blowtorch so that the burnt finish remained consistent across all edges to get the highest quality joinery detail.
Custom sill sections were fabricated on site, and all junctions were sealed using Bostik 7003 in Black, a hybrid sealant and adhesive chosen for its durability and colour match.
Dean summed up the project by saying, “This build needed a very specific solution, and it was great to help them get the right product for such a unique cladding system.”
For more information on the Anchormark S2 Decking and Cladding screws browse the technical specifications on our website or talk to your local sales professional today for more information.




