backerboard

1. A board used behind or under other material, often as support.

   (исчисляемое, неисчисляемое)Boards used as underlayment for tile, plaster, or other materials.

2. (исчисляемое, неисчисляемое)A sacrificial board placed behind or under a board being drilled or sawn, so as to prevent blowouts. (Usually scrap ends reused for such purpose.)

3. (исчисляемое, неисчисляемое)Sheets of cardboard or similar material used to preserve or display books, magazines, art prints, etc.

правильный

• backer boardalternative