Portal frames suit rectangular plants. Halls, exhibitions or irregular roofs more often use grids or tubular trusses because the plan and hanging loads change. Read those first; do not lock a slogan and force the shape.

Shop drawings, jigs and lifting also differ. Plant joints rarely pass review on a hall roof, and temporary works will be missing.

Send plan, supports, hanging and the roof build-up. Area without a plan is only a concept; uncalculated grid sizes are omitted.

Attach architectural drawings. Members follow the design file; no single system brand is set.

Tiankai Southeast fabricates marked members from approved drawings and supports erection by mark number. Sizes, loads and delivery follow the confirmed design file and contract; this page does not turn uncalculated tonnage, thickness or time into a promise.