MDF imadziwika kuti Medium Density Fiberboard, yomwe imatchedwanso fiberboard.MDF ndi ulusi wamatabwa kapena ulusi wina wazomera ngati zopangira, kudzera mu zida za ulusi, kugwiritsa ntchito utomoni wopangira, pakutentha ndi kupanikizika, kukanikizidwa mu bolodi.Malinga ndi kachulukidwe ake akhoza kugawidwa mu high kachulukidwe fiberboard, sing'anga kachulukidwe fiberboard ndi otsika kachulukidwe fiberboard.Kuchulukana kwa fiberboard ya MDF kumayambira 650Kg/m³ – 800Kg/m³.Ndi katundu wabwino, monga, asidi & alkali kugonjetsedwa, kutentha kugonjetsedwa, zosavuta fabricability, odana ndi malo amodzi, zosavuta kuyeretsa, okhalitsa ndipo palibe zotsatira nyengo.