Box-frame

2 - Box Frame Construction

A) Box-frame construction C) Closed truss

a) Sill beam b) Post c) Stud d) Transverse beam e) Common rafter f) Couple g) Principal h*) Collar i) Queen strut j*) Tiebeam k) Axial beam

2 - Box Frame Construction

B) Normal assembly

l*) Jowl

2 - Box Frame Construction

l*) Jowl m) Crown plate (commonly called collar purlin) n) Upward brace p) Crown post

2 - Box Frame Construction

D) Box-frame truss

j*) Tiebeam q) Common rafter truss r) Wall plate s) Arch brace

3 - Box Frame Type and Details

A) Kerb principal truss

a) Kerb principal b) Crown strut c) Queen strut d) Interrupted collar e) Princess strut g) Downward & ogee brace

3 - Box Frame Type and Details

b) Crown strut  f*) Collar plate h) Soulace

3 - Box Frame Type and Details

i) Jowled head j) Gunstock head k) Splayed head m) Upstand n) Extended jowl

3 - Box Frame Type and Details

l) Integral bracket p) Sampson post