Backer board, nk’uko izina ribivuga, ni ikintu c’amabara gitanga infashanyo n’uburinzi ku ruhande rw’inyuma rw’ikintu nyamukuru. Mu bisanzwe ikozwe mu bikoresho bikomeye kandi bikomeye nk’ivyuma, ibiti canke amapulasitike yihariye. Backer board ikoreshwa cane mu bikorwa bitandukanye, harimwo n’ubwubatsi, gusanura inzu, n’uguhingura, kandi ni ikintu gihambaye cane mu gutuma umugambi ugumaho kandi ukagumaho.
