The environmental enemies

Heat and humidity can warp slabs and fog the inner well over time; direct UV light fades inks and surfaces; large temperature swings stress the case. Aim for a cool, dry, dark, stable environment — climate-controlled interior space, not an attic, garage, or basement that swings with the seasons.

Security and handling

For a collection of real value, a fireproof safe or a safe-deposit box materially lowers theft and disaster risk. Handle slabs by the edges, transport them in dedicated slab cases, and avoid stacking heavy items on them or sliding them against each other.

Storage is part of your risk score

Slabline factors storage — climate, fire, theft, light, and handling — into its 0–1000 protection score, alongside insurance, concentration, liquidity, and provenance. It shows how much your storage choices help or hurt, so you can fix the highest-impact gap first.