Beam support Modern Outdoor 4×2 Pergola Kit DIY Elevated Wood Stand Kit Steel Bracket Heavy Duty Outdoor Garden Pergola Bracket Material: SPCC cold rolled carbon steel (thickness 2/3mm, custom accepted, according to JHC240). Accessories: black plated zinc steel screws (rust Class 8.8). Standard Size: Outer diameter 98mm (L) ×98mm (W) ×3mm (Thickness), tolerance ±1mm. Suitable for 9cm*9cm wooden post. Load-bearing: Static load-bearing: 500kg (uniform distribution). Dynamic wind resistance: can resist 10 wind (30m/s). Surface Treatment: Black Powder Coated or Glavinized. Weather Resistance: 1000 hours salt spray test (ASTM B117). Application: courtyard shade, garden flower rack, terrace leisure area. Outdoor cafe, campsite, scenic observation deck.