Timber and timbre are two similar-looking words that appear in very different contexts. At least most of the time.
Timber traces back to an Old English word initially meaning “house” or “building” that also came to mean “building material,” “wood,” and “trees” or “woods.” Timbers are large squared lengths of wood used for building a house or a boat. In British English, timber is also used as a synonym for lumber.
Metaphorical senses followed after centuries of the word’s use: the word used for building material became a word meaning “material” or “stuff” in general (“it’s best-seller timber”) and came also to refer to the qualities of character, experience, or intellect (“managerial timber”).
And, of course, there’s also the interjectional use of “timber!” as a cry to warn of a falling tree; the fact that most people know this despite few of them ever having deployed the word in such a situation is almost certainly due to cartoons.
Timbre is French in origin, which is apparent in its pronunciation: it is often pronounced \TAM-ber\ and, with a more French-influenced second syllable, \TAM-bruh\. The French ancestor of timbre was borrowed at three different times into English, each time with a different meaning, each time reflecting the evolution that the word had made in French.
The first two meanings timbre had in English (it referred to a kind of drum and to the crest on a coat of arms) are now too obscure for entry in this dictionary, but its third meaning survives. Timbre in modern English generally refers to the quality of a sound made by a particular voice or musical instrument; timbre is useful in being distinct from pitch, intensity, and loudness as a descriptor of sound.
But because English is rarely simple about such things, we have also these facts: timber is listed as a variant spelling of timbre. And timbre may also be correctly pronounced just like timber as \TIM-ber\. And the spelling of timber was unsettled for many years; it was sometimes spelled tymmer, tymber, and, yes, timbre. The messy overlapping of these similar words is coincidental: the consequence of the intersection of the different cultures and languages that left their traces on English.
