Patterned battens break the uniform-spacing rule. You vary batten width, profile, and gap so the gate face reads as a designed rhythm: alternating wide and narrow, asymmetric clusters, gradient fades, or short repeating sequences. The structural frame is identical to a uniform battened gate. Only the infill changes.
Patterned designs are common in architect-specified residential work where the gate is a feature of the street frontage. Spec sheets usually list each batten row by number, profile (say 65x16 vs 100x16), and centre-to-centre spacing.
CAD60's pattern designer is a bespoke widget that lets you lay the pattern slot by slot. The geometry engine then redraws every dimension line for every batten in the drawing pack.