From material choice to joinery and documentation, our quality system is designed to keep handcrafted log architecture tight, true and buildable—today and decades from now.
Timber, selected for performance
• Large-dimension, slow-grown Nordic pine from vetted sources
• Stock on hand: dry, straight timber with lengths up to ~12.2 m to start builds without delay
• Grading available when required by the project
Precision as a principle
• Lateral grooves are profiled so their edges compress into the wood for airtight joints
• Dried logs are re-milled to remove cupping and ensure straight bearing faces
• Every notch is hand-finished with a knife, then checked for fit and bearing
Tri-Level Scribing – developed by our Master Log Builder Timo Aro-Heinilä
A scribing approach that anticipates differential shrinkage between the inner and outer faces of a log. By shaping an intentionally unbalanced groove before final seasoning, the method helps the joint tighten as the wall settles—reducing long-term opening of the groove, helping long wall runs remain plumb and improving sealing.
Corners & special solutions
• Corner geometries include dovetail and wedging lock notches; the profile is selected according to architectural and technical requirements
• Long spans with toothed, multi-layer dowel beams for larger open rooms
• Curved and leaning walls, as well as the integration of large glazed areas into post-and-beam structures, are part of our repertoire
Ready for building services
• Pre-drilled routes for electrical wiring as standard
• T-profile solid-wood opening bucks at all door and window openings
• Floating posts in partition slots for anchoring light-frame walls and accommodating settlement
Sufrace durability
• Fine machine hewing on the flat faces of the logs creates a durable surface that can be left untreated where natural weathering is desired.
Capacity & coordination
• Single frames up to ~500 m² crafted under one roof at our ~800 m² atelier in Naantali
• For large or multi-workshop builds, modules are crafted indoors at partner workshops using the same drawings, tolerances and numbering system, under the oversight of Hirsitikka’s Supervisor
Result: Dry joinery, consistent tolerances and uniform surface quality across the whole frame.
Supervisor Service for multi-workshop or high-stakes builds
• Pre-production review of drawings, joinery profiles and tolerances
• Scheduled shop visits with measurement/photo records
• Verification of numbering, fit-up and shrinkage allowances before shipment
Benefits: consistent execution across workshops, reduced quality/schedule risk, and clear documentation for handover.
Documentation & traceability
• Numbered components, build log and photo set for every project
• Handover package covering timber specifications, profiles, settlement allowances and maintenance guidance
Schedule discipline
We allow sufficient time for the craft steps that cannot be rushed, then coordinate logistics so site work proceeds smoothly. The result is predictable delivery without last-minute surprises.
Plan with us
We work directly with architects and structural engineers to align architecture, detailing and buildability from the start. Share your brief and we’ll propose the quality pathway, capacity plan and timeline.
Planning for handcrafted log project? Let’s talk to scope, schedule and quality! About Us
