Durable & Rot-Resistant Wood Database

Built to Last: Technical Data for Outdoor Woodworking

The elements are undefeated, but the right wood gives you a fighting chance. When building for the outdoors, "durability" isn't a marketing term—it's a biological reality. Many species contain natural extractives (oils and tannins) that repel insects and fungus for decades.

This database focuses on species with Moderate to Very Durable rot-resistance ratings. We've included Janka Hardness so you can gauge how well a species will handle foot traffic on a deck or the heavy use of a garden bench.

Never guess on durability: Keep this technical data in your pocket. Access our full durability ratings and species database on the go with the Bad Owl Tool app, designed to help you make informed material choices at the lumber rack.

Note: High-durability woods often contain high tannin levels. Always pair these species with stainless steel fasteners to prevent "bleeding" and corrosion.