Abstract: An adjustable equipment curb has a lower frame having opposed first and second length-adjustable sides and opposed length-adjustable first and second ends interconnectable to form a rigid frame and height-adjustable mounting legs. The lower frame may be used alone, or may support an upper frame through a shock mount system having mounts affixed to both the upper and lower frames and shock absorbing springs between the mounts. The frames may be formed of interconnecting channel members, and the lower frame channel members may be of a perforated construction that, in conjunction with applied sheathing, provides acoustic damping. Seismic brackets may be affixed to the frame to provide increased resistance to seismic shock.

Abstract: An adjustable equipment curb has a lower frame having opposed first and second length-adjustable sides and opposed length-adjustable first and second ends interconnectable to form a rigid frame and height-adjustable mounting legs. The lower frame may be used alone, or may support an upper frame through a shock mount system having mounts affixed to both the upper and lower frames and shock absorbing springs between the mounts. The frames may be formed of interconnecting channel members, and the lower frame channel members may be of a perforated construction that, in conjunction with applied sheathing, provides acoustic damping. Seismic brackets may be affixed to the frame to provide increased resistance to seismic shock.

Abstract: An adjustable equipment curb has upper and lower frames, each having opposed first and second length-adjustable sides and opposed length-adjustable first and second ends interconnectable to form a rigid frame and height-adjustable mounting legs. The lower frame may be used alone, or may support the upper frame through a shock mount system having mounts affixed to both the upper and lower frames and shock absorbing springs between the mounts. The frames may be formed of interconnecting channel members, and the lower frame channel members may be of a perforated construction that, in conjunction with applied sheathing, provides acoustic damping. Seismic brackets may be affixed to the either of the frames to provide resist seismic shock and developed moment resistance.

Abstract: An adjustable equipment curb has upper and lower frames, each having opposed first and second length-adjustable sides and opposed length-adjustable first and second ends interconnectable to form a rigid frame and height-adjustable mounting legs. The lower frame may be used alone, or may support the upper frame through a shock mount system having mounts affixed to both the upper and lower frames and shock absorbing springs between the mounts. The frames may be formed of interconnecting channel members, and the lower frame channel members may be of a perforated construction that, in conjunction with applied sheathing, provides acoustic damping. Seismic brackets may be affixed to the either of the frames to provide resist seismic shock and developed moment resistance.

Abstract: A roof catchboard bracket for securing a catchboard to a roof, preferably formed from a plastic material. The device includes an L-shaped bracket having a first leg adapted to be removably secured to a roof and a second leg adapted to be removably secured to a catchboard. An integrally formed brace portion extends intermediate the first and second legs for bracing the second leg against the first leg. Other features include a provision for nesting a plurality of such brackets one on top of the other, and pry chamfers which allow the brackets to be readily removed after nailing to a roof surface.