Capture quarry name, bench, extraction date, absorption rates, finishing process, and exact veining photographs for each slab. Store reinforcement details for thin stone, slip resistance data for floors, and compatible sealants. When suppliers suggest a swap, scanable records expose differences immediately, protecting continuity across bookmatched panels and ensuring replacements truly match in quality and character.
For fine joinery, record FSC or PEFC certificates, species, origin region, moisture content at delivery, acclimation logs, and finishing systems. Include reclaimed provenance and CITES documentation where applicable. These facts prevent warping disputes, verify ethical sourcing, and guide care in humid environments, sustaining craftsmanship that feels as good to live with as it looks.
Document alloy composition, mill certificates, recycled content, patination or plating processes, and artisans involved. For custom bronze pulls or hand-formed steelwork, include fabrication drawings and spare-part pathways. When time demands touch-ups or replacements, the passport ensures the exact process and finish are repeated, preserving tactile integrity rather than approximating under pressure.