Blockboard wani nau'i ne na injina na katako wanda ya ƙunshi wani cibiya da aka yi da ƙaƙƙarfan tubalan rectangular na itace mai laushi ko katako, wanda aka yi da sandwid a tsakanin yadudduka na waje na itace. Ana shirya tubalan yawanci tare da hatsin su yana gudana daidai da yadudduka na waje.
Blockboard yana ba da haɗin ƙarfi, kwanciyar hankali, da ƙimar farashi, yana mai da shi dacewa da aikace-aikace daban-daban a cikin kera kayan daki, ƙirar ciki, da gini. Ƙaƙƙarfan tubalan katako a cikin ainihin suna ba da kwanciyar hankali da juriya ga warping, yayin da yadudduka na veneer a saman yana ƙara kyan gani.
Ginin allo ya ƙunshi yin amfani da manne mai inganci don haɗa tubalan tare, wanda ke haifar da fa'ida mai ƙarfi da ɗorewa. Za'a iya yin nau'i-nau'i na veneer na waje daga nau'in itace daban-daban, yana ba da damar haɓakawa dangane da bayyanar da zaɓuɓɓukan ƙarewa.
An fi amfani da allon allo a aikace-aikace kamar kofofi, shelves, tebura, partitions, da bangon bango. Yana ba da tsayayye da daidaito don ayyukan aikin itace kuma ana iya yanke shi cikin sauƙi, siffa, da gamawa bisa ga ƙayyadaddun da ake so.
