open-web non-metal trusses and open-web non-metal joists held together by metal or non-metal fastneres for use in construction of floors, ceilings and roofs in residential and light commercial buildings, the length of which may be cut on the job site, and marketed and sold substantially exclusively to the construction trade

Open-web non-metal trusses and open-web non-metal joists held together by metal or non-metal fasteners for use in construction of floors, ceilings and roofs in residential and light commercial buildings, the length of which may be cut on the job site, and marketed and sold substantially exclusively to the construction trade

Joists; Non-metal roof trusses

OPEN-WEB TRUSSES AND OPEN-WEB JOISTS FOR USE IN CONSTRUCTION OF FLOORS, CEILINGS AND ROOFS IN RESIDENTIAL AND LIGHT COMMERCIAL BUILDINGS, THE LENGTH OF WHICH MAY BE CUT ON THE JOB SITE, AND MARKETED AND SOLD SUBSTANTIALLY EXCLUSIVELY TO THE TRADE