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Why is a Triangle a Strong Shape?

Across
The point of intersection of a chord with the web or webs, or an attachment of pieces of lumber (eg. splice).
The location where the chord member is spliced to form one continuous member.
Members that join the top and bottom chords to form the triangular patterns that give truss action.
That structural portion of a truss which extends beyond the support.
A galvanized steel plate with teeth punched out on one side, which is hydraulically pressed or rolled into both sides of a joint to fasten chord and web members together.
Either horizontal 2x member at the top of a stud wall offering bearing for trusses or a shortened form of connector plate, depending on usage of the word.
A truss which has the top chord parallel to the bottom chord over the entire length of the truss.
For pitched trusses only – the sloping cut of the upper portion of the bottom chord at the heel joint.
A permanent member connected to a web or chord member at right angle to the truss to restrain the member against a buckling failure, or the truss against overturning.
An upward vertical displacement built into a truss bottom chord to compensate for deflection due to dead load.
An inclined or horizontal member that establishes the upper edge of a truss. This member is subjected to compressive and bending stresses.
The point of intersection of a chord with the web or webs.
Down
The outer members of a truss that define the envelope or shape.
A temporary bottom chord brace may be omitted if the ceiling is attached directly to the bottom chord and provides adequate lateral support.
A main truss supporting secondary trusses framing into it.
Any truss in which the top chord is sloped and the bottom chord is horizontal.
A pre-built structural member capable of supporting a load over a given span.
The width dimension of the member providing support for the truss (usually 3 1/2” or 5 1/2”). Bearing must occur at a truss joint location.
Top chord cut to provide for vertical (plumb) installation of fascia.
The horizontal (and inclined, . scissor trusses) member defining the lower edge of a truss, carrying ceiling loads where applicable.
The units of horizontal run, in one unit of vertical rise for inclined members. (Usually expressed as 3:12, 5:12, etc.)
The joint in a pitched truss where top and bottom chords meet.
The horizontal distance between inside faces or supports.
Highest point on a truss where the sloped top chords meet.
The extension of the top chord beyond the heel joint.
The chord segment between two adjacent joints.