glue block[′glü ‚bläk]
A wood block usually triangular in cross section, glued to an angular joint between two members at right angles to stiffen the joint.
angle block, glue block
A small block of wood, triangular in cross section, which is used to stiffen two intersecting pieces of wood at right angles; for example, under the step of a stair.
glue block, angle block
A block of wood, set into an interior angle formed by two boards, and glued in place to strengthen the joint.