New Zealand's #1 choice in insulated vinyl weatherboards

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Trim & Accessories

Vinyl Cladding Weatherboards come as a complete system which includes trim to be used with the weatherboard. Trim is available in every Cladding colour to match the colour of weatherboard you choose. Or mix and match trim colours to offer contrast.

Trim and accessories required for cladding with Mitten Vinyl are:
- Starter Strip
- J-Trim
- Corner Posts.
Cladding screws are provided with your cladding order. Please advise us at time of order if you would prefer to provide your own screws. We will advise you on the type of screws required.

Specialised vinyl tools available:

  • Zip Tool: for unhooking and removing individual boards
  • Hole Punch: punches horizontal slots, useful for adding or elongating fixing holes in vinyl, use to accommodate irregular stud spacing
  • Crimping Tool: creates a hook-fastener on a cut down board

Please note that these tools are optional and are not necessary to install your cladding but they are available should you wish to purchase them with your weatherboard order.

Starter strip

Starter strip: used to start the first course of cladding when using any of our horizontal weatherboard profiles.

Length per piece: 3.66m

SS graphic

Dimensions shown in millimeters. Picture shown is for 20mm foam backed cladding, 30mm foam back cladding uses a different starter strip.


Frost OCP

Corner Post: the outside corner post is an external corner trim to be used in conjunction with all of our weatherboard profiles

Length per piece: 3.05m & 3.66m lengths available
Colours: Available in all cladding colours with option of foam inserts also

OCP graphic

Dimensions shown in millimeters. Dimensions vary between 20mm and 30mm foam insulation size.

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Traditional Corner post with Foam Insert, 110mm x 110mm face (30mm Weatherboards only)




J-Trim: used to trim/flash windows, doors, gable ends, wall tops, internal corners and all cut ends of our weatherboard and soffit.

Length per piece: 3.66m
Colours: Available in all cladding colours
Sizes: J15, J20, J25, J30

The size of J-Trim you use will depend on the profile and level of insulation you choose.

Please ask us for the correct sizing of trims for your project, all installation instructions and detail drawings are available on request.

J15/20: Use with unfoamed and foamed (J20) Vertical / Soffit profile (note-16mm unfoamed, 22mm foamed)





J25: Use with 20mm foamed board, (note-30mm outside wide not 28)



J30: Use with 30mm foamed board, (note-40mm wide outside not 28).



All dimensions shown in millimeters