| Cover format | Five-sided fitted hood, shaped cover, dimensioned flat tarp or access-panel cover | Use fitted geometry for repeatable load profiles; use a more flexible tarp form when dimensions vary. |
| Main material | PVC-coated polyester or PVC-laminated polyester; PE may be considered for lighter-duty programs | Match material to reuse frequency, weather, weldability, handling weight and target cost. |
| PVC weight direction | Approx. 450–900 gsm+ for common custom-cover programs; other structures can be discussed | Do not buy by GSM alone—review base fabric, coating, seams, abrasion and reinforcement together. |
| Base fabric direction | 500D, 840D, 1000D, 1300D or project-matched polyester scrim | Denier is only one variable; complete construction determines final strength behavior. |
| Finished size | Custom to maximum loaded L × W × H plus agreed fit / clearance | State whether dimensions are load dimensions or desired finished-cover dimensions. |
| Surface options | Glossy, matte, lacquered, embossed, easy-clean or project-specific finish | Consider cleaning, appearance, abrasion, label visibility and branding. |
| Outdoor options | UV-oriented, anti-mildew, cold-resistant and selected FR / anti-static directions by requirement | Where compliance matters, provide the exact requested standard or acceptance method. |
| Seam method | Hot-air, hot-wedge, HF welding or sewn construction depending on cover design | Match seam method to fabric, water exposure, panel size and access details. |
| Reinforcement | Double-layer corners, webbing, reinforced hems, wear patches or rope edge | Map abrasion and tie-down zones from photos, drawings or an approved sample. |
| Fastening | Eyelets, D-rings, webbing straps, buckles, elastic cord or drawcord | Fastening must connect to real anchor points and distribute force through reinforced zones. |
| Access & ID | Zipper, flap, hook-and-loop, document pocket, handles, vents, logo, labels or color coding | Plan how workers identify, access, inspect and reclose the load without damaging the cover. |