Revolutionised Lightweight design the only large panel shim manufactured in New Zealand. Designed for packing underneath concrete precast or tilt-up panels in the industrial, commercial and civil construction industries, for levelling and packing objects with a high load mass.



Colour coded by thickness for ease of selection. Castle packing shims are manufactured by Castle NZ in Hawke’s Bay from 20% recycled PP plastic and tested with compressive loads exceeding 20 tonnes. The shims feature a gripped non-skid surface at a handy 150x 100mm.

The 150x100mm panel shim is manufactured in New Zealand from local suppliers and 20% recycled materials. CastleNZ is a family owned and developed business manufacturing concrete accessories since 1988. Another great product range to add to the NZ Family.

Features of the New Panel Shim

  • LONGLASTING: Manufactured from UV resistant PP
  • HEAVY DUTY: Tested to excess of 23 Tonne
  • LIGHWEIGHT: The large shims; 10, 15 & 20mm are 40% lighter saving freight & handling
  • EASY SIZING: Shim size is marked on the Shim as well as easy colour recognition
  • RELIABLE: Featuring a secure non slip grip
  • COMPLIANT: Batch Tested to AS 3850 2015 standards


Free sample pack available!

Talk to our customer service team on 0800 55 33 00 or email

Find Out more about our complete range of accessories for the concrete industry, all made here in New Zealand.