Pergola Cameo D4m x W4m
UK Timbersolution
£3270
What Thickness Posts and Beams Should an Oak Pergola Have? When designing an oak pergola , choosing the right post and beam thickness is one of the most important decisions. The correct dimensions ensure the structure is strong, stable, and visually balanced. Oak is exceptionally durable, but like all natural timber, it needs to be sized correctly to perform well and maintain its appearance over time. This guide explains the ideal post, rafter, and beam thickness for oak pergolas — and offers professional recommendations based on real experience in oak framing. Understanding Oak Pergola Struct
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