backerboard

Alternative forms

 * backer board

Noun

 * 1) A board used behind or under other material, often as support.
 * 2)  Boards used as underlayment for tile, plaster, or other materials.
 * 3)  A sacrificial board placed behind or under a board being drilled or sawn, so as to prevent blowouts.
 * 4) Sheets of cardboard or similar material used to preserve or display books, magazines, art prints, etc.
 * 1)  A sacrificial board placed behind or under a board being drilled or sawn, so as to prevent blowouts.
 * 2) Sheets of cardboard or similar material used to preserve or display books, magazines, art prints, etc.
 * 1)  A sacrificial board placed behind or under a board being drilled or sawn, so as to prevent blowouts.
 * 2) Sheets of cardboard or similar material used to preserve or display books, magazines, art prints, etc.