Ash - Open-grained, tough, flexible, Beech - Close-grained, hard, tough, strong, warps easily, Elm - Open and sometimes interlocking grain, tough, durable, resists splitting, durable in water, Mahogany - Fairly strong, durable, some interlocking grain, Oak - Strong, hard, tough, open-grained, corrodes steel screws and fittings,

Hardwood Timbers - Resistant Materials

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