Truss Types

10-Regular  11-Scissor
 12-Tri Bearing 13-Dual Slope 
16-Coffer   17-Vault
18-Studio1  19-Studio2 
 20-Flat 21-Sloping Parallel Chord 
 22-Hip Girger  23-Mono
 24-Mono Scissor  25-Floor
 27-Attic  28-Gambrel
 29-Gable  30-Drop Gable
 31-Structural Gable  horizontal gable
 14-Double Cantilever  15-Clear Story
storage truss   

These are some of the most common types of trusses. Many other shapes are possible.