block bridging, solid bridging, solid strutting
Short members (boards) which are fixed vertically between floor joists to stiffen the joists.
Pic
Pic
Pic
blockhouse
1. A fortified structure used to furnish protection against enemy attack in frontier areas, usually at a location of strategic importance; often square
Pic
block plane
A small plane, held in one hand; the angle of the cutting blade is low (usually about 20°); esp. used to clean
Pic
blocking course
1. A plain finishing course of masonry directly above a cornice. 2.A string course.
Pic
bird screen
A frame fitted with a wire mesh; used to prevent birds from entering an opening, such as at a chimney hood or
Pic
bench table
A projecting course of masonry at the foot of an interior wall, or around a column; generally wide enough to form a
Pic
bent frame
One of a number of sections in a timber framework that is transverse to the length of a large barn or house
Pic
bevel protractor
A graduated semicircular protractor having a pivoted arm; used for measuring or marking off angles.