Yes, it is possible to kill many enemies and acquire Shaped Wood. However, this isn't something I'd recommend. Whilst you'll undoubtedly find yourself slaying hundreds, if not thousands, of enemies throughout your time in Conan Exiles, they drop Shaped Wood in such low quantities that it honestly isn't worth it as an alternative means of production. It'll take far more time, effort, and resources to kill enough enemies to get 1000 Shaped Wood than it would do to craft it up in the traditional way. It can be very tempting to look for alternative methods for acquiring resources like these, but with Shaped Wood, your best bet is to bite the proverbial bullet and do the hard work to craft it.