Obsidian Basalt stone transition at the Portland Japanese Garden, showing seamless interior to exterior paving and large section stone stairs with a fine adze finish.

Portland Japanese Garden, OR

Custom obsidian basalt paving and stair elements integrated across interior and exterior spaces.

Custom Obsidian Basalt paving and large-format stair elements create seamless transitions between architecture and landscape throughout the Portland Japanese Garden. The stone features a traditional Fine Adze finish, a hand-tooled texture selected to evoke craftsmanship, age, and material permanence.

Project Type: Cultural Institution

Application: Stone Paving & Stair Elements

Material & Finish: Obsidian Basalt Fine Adze Finish

Scope: Basalt Paving • Architectural Stairs • Landscape Integration

Technical Highlights: Large-Format Stairs, Fine Adze Finish, Interior-Exterior Integration, Landscape Transitions

Location: Portland, Oregon

Interior view of the Portland Japanese Garden Cultural Village featuring large-section Obsidian Basalt stone stairs transition paving under a modern wood-slat ceiling.