Depends on the type of honeysuckle - some only grow to around 15', others can easily reach 30'. IME, very few purchased trellises will adequately home a perennial vine like honeysuckle, clematis, campsis, wisteria, etc. on a permanent basis. They easily outgrow all standard trellis sizes unless you (or your friendly handyperson) custom design/build one.

Most perennial vines take around 3 years to mature. Depending on growing conditions, you can expect it to double in size this season.