Window Liners & Door Jambs


Window Liners


The liner is a timber surround fitted to the window joinery and used for installing the product into timber framing. The liner becomes the frame of your window covering the stud.

Niagara is one of New Zealand’s leading window liner manufacturers and has supplied the New Zealand market for 20 years. We pride ourselves on delivering a high quality product, backed up by service you can trust. Niagara specialises in manufacturing finger jointed primed and clear liners in a wide range of profiles.

Browse our full range of profiles



Door Jambs


Select from the range we stock or enquire at your local timber merchant about our custom profiling.

Door jambs are manufactured from finger jointed or clear radiata pine grown in plantation renewable forests.

Interior door jambs: finger jointed or clears, untreated (can be treated under request)

Exterior door jambs: finger jointed, treated

Grade Length
Finger jointed up to 6.3m
Clears  2.1, 2.4, 2.7m



Browse our full range of profiles

Niagara Stockists