North Island Processing Capabilities
The tables below indicate our North Island standard processing capability for most of our core ranged glass products. If your requirements fall outside of these parameters, we can custom manufacture some items on request.
Double Glazing | |
Max Unit Weight - see note 4 | 350kg per/lm |
Max Unit Thickness with Standard Spacer | 80mm |
Max Size with Standard Aluminium Spacer | 4500 x 2500mm |
Max Size Argon Fill | 4500 x 2500mm |
Min Size Argon Fill | 350 x 200mm |
Toughened Float | |
Max Size (4mm) - see note 2 | 2500 x 1300mm |
Max Size (5mm) - see note 2 | 3300 x 1800mm |
Max Size (6mm) | 4500 x 2500mm |
Max Size (8-19mm) - see note 4 | 4500 x 2500mm |
Min Size | 250 x 100mm |
Min Diameter | 260 Dia |
Toughened Low E | |
Max Size (4mm) - see note 2 | 2500 x 1300mm |
Max Size (5mm) - see note 2 | 3300 x 1800mm |
Max Size (6mm) | 4500 x 2500mm |
Max Size (8-19mm) - see note 4 | 4500 x 2500mm |
Min Size | 250 x 100mm |
Min Diameter | 260 Dia |
Heat Strengthened | |
Max Size (4-12mm Thickness) | As above for toughened |
Max Size (12mm Thickness) | As above for toughened |
Heat Soak | |
Max Size (4-19mm Thickness) | 4500 x 2500mm |
Min Size (4-19mm Thickness) | 250 x 100mm |
Laminated Safety Glass | |
EVA Min Sizes | 250 x 100mm |
EVA Max Size | 5000 x 2400mm |
EVA Max Thickness/ Max Weight - see note 1,3,6 | 40mm / 410kg |
Laminated PVB | |
Max Weight Cut to Size (CTS) | 3300 x 3210mm |
PVB Max Sizes Stocksheet - see note 5 | 5100 x 3210mm |
CNC | |
Max Size (4-19mm Thickness) | 5000 x 2800mm |
Min Size (4-19mm Thickness) | 300 x 100mm |
Min Diameter (4-19mm Thickness) | 150 Dia |
Digital Print | |
Max Size (4-19mm Thickness) | 5000 x 2600mm |
Min Size (4-19mm Thickness) | 250 x 100mm |
Screen Print | |
Max Clad (4-19mm Thickness) | 3150 x 1600mm |
Max Pattern (4-19mm Thickness) | 2850 x 1350mm |
Min Sizes (4-19mm Thickness) | 400 x 100mm |
Note 1 - The thinner of the panes normally governs limitations, e.g. for 6+4 laminate makeup, use 4mm Product Guidelines
Note 2 - Normal maximums are recommended for good quality and to reduce reworks.
Note 3 - Sizes are subject to toughening sizes for thickness.
Note 4 - 5000x 2800mm toughening and heat soaking/processing in Auckland is possible for specific jobs depending on glass availability.
Note 5 - Stock PVB Laminate excludes Clear 8.76mm and Bronze 6.38mm. Max Clear 8.76mm sheet is 4500 x 3210mm. Max Bronze 6.38 sheet is 3120 x 2250mm
Note 6 - LSG >40mm on application (Ex Auckland only)
General - For sizes near the upper limits of maximum sizes, outside the sizes shown above or special applications refer to your Metro sales representative. The maximum acceptable aspect ratio (length/width) for any thickness of toughened glass is 15 to 1.
Shapes and Templates
Glass ordered to templates must be accompanied by a full scale template to the correct dimensions. Irregular shape surcharge applies. Templates must be made from a rigid material and with separate templates for each panel marked with:
- The customer name and order number
- Hole type, size and locations
- The face side, glass type and thickness
- Edgework requirements
- Stamp type and position
Tempafloat™ Toughened Safety Glass
Details such as minimum and maximum limitations for holes, cut-outs, notches etc can be found here.
Toughened safety glass manufactured by the roller hearth toughening process can exhibit some optical distortion (roller wave) when viewed from certain angles. This can be more noticeable when reflected light is observed by the viewer. Designers and specifiers are encouraged to take these normal physical characteristics of toughened safety glass into account.
Site Limitations Wind Loading
The following size limitations are dictated by the furnace manufacturers and bear no relationship to the suitability of any given thickness to meet the requirements of the New Zealand Standards. Wind loading or Human Impact requirements must always be allowed for when specifying toughened glass and these MUST always be considered first.
South Island Processing Capabilities
The tables below indicate our South Island standard processing capability for most of our core ranged glass products. If your requirements fall outside of these parameters, we can custom manufacture some items on request.
Double Glazing | |
Max Unit Weight | 150kg per/lm |
Max Unit Thickness with standard spacer | 52mm |
Max Size with Standard Aluminium Spacer | 4500 x 2400mm |
Max Size Argon Fill - see note 4 | 3500 x 2400mm |
Min Size Argon Fill | 350 x 180mm |
Toughened Float | |
Max Size (4mm) - see note 2 | 2500 x 1300mm |
Max Size (5mm) - see note 2 | 3300 x 1800mm |
Max Size (6mm) | 4500 x 2400mm |
Max Size (8-19mm) - see note 4 | 4500 x 2400mm |
Min Size | 250 x 100mm |
Min Diameter | 260 Dia |
Toughened Low E | |
Max Size (4mm) - see note 2 | 2500 x 1300mm |
Max Size (5mm) - see note 2 | 3300 x 1800mm |
Max Size (6mm) | 4500 x 2400mm |
Max Size (8-19mm) - see note 4 | 4500 x 2400mm |
Min Size | 250 x 100mm |
Min Diameter | 260 Dia |
Heat Strengthened | |
Max Size (4-12mm Thickness) | As above for toughened |
Heat Soak | |
Max Size (4-19mm Thickness) | 4500 x 2400mm |
Min Size (4-19mm Thickness) | 250 x 100mm |
Laminated Safety Glass | |
EVA Max Sizes see note 1,3,6 | 4500 x 2400mm |
EVA Min Sizes | 250 x 100mm |
Max Thickness/Max Weight | 40mm 250kg |
Laminated PVB | |
Max Weight Cut to Size (CTS) | 3300 x 3210mm |
PVB Max Sizes Stocksheet - see note 5 | 5100 x 3210mm |
CNC | |
Max Size (4-19mm Thickness) | 4500 x 2400mm |
Min Size (4-19mm Thickness) | 300 x 100mm |
Min Diameter (4-19mm Thickness) | 150 Dia |
Digital Print | |
Max Size (4-19mm Thickness) | 3700 x 2400mm - see note 2 |
Min Size (4-19mm Thickness) | 250 x 100mm |
Screen Print | |
Max Clad (4-19mm Thickness) | Not available |
Max Pattern (4-19mm Thickness) | Not available |
Min Sizes (4-19mm Thickness) | Not available |
Note 1 - The thinner of the panes normally governs limitations, e.g. for 6+4 laminate makeup, use 4mm Product Guidelines
Note 2 - Normal maximums are recommended for good quality and to reduce reworks.
Note 3 - Sizes are subject to toughening sizes for thickness.
Note 4 - 6000x2800 toughing and heat soaking/processing in Auckland is possible for specific jobs depending on glass availability. Soft coat Low E heat soak on application.
Note 5 - Stock PVB Laminate excludes Clear 8.76mm and Bronze 6.38mm. Max Clear 8.76mm sheet is 4500 x 3210mm. Max Bronze 6.38 sheet is 3120 x 2250mm
Note 6 - LSG >40mm on application (Ex Auckland only)
General - For sizes below the specified minimum or with a shape area under 0.075m2 or outside the above dimensions, or for special applications refer to your metro sales representative.
The maximum acceptable aspect ratio (length/width) for any thickness of toughened glass is 15 to 1.
Shapes and Templates
Glass ordered to templates must be accompanied by a full scale template to the correct dimensions. Irregular Shape surcharge applies. Templates must be made from a rigid material and with separate templates for each panel marked with:
- The customer name and order number
- Hole type, size and locations
- The face side, glass type and thickness
- Edgework requirements
- Stamp type and position
Tempafloat™ Toughened Safety Glass
Details such as minimum and maximum limitations for holes, cut-outs, notches etc can be found here.
Toughened safety glass manufactured by the roller hearth toughening process can exhibit some optical distortion (roller wave) when viewed from certain angles. This can be more noticeable when reflected light is observed by the viewer. Designers and specifiers are encouraged to take these normal physical characteristics of toughened safety glass into account.
Site Limitations Wind Loading
The following size limitations are dictated by the furnace manufacturers and bear no relationship to the suitability of any given thickness to meet the requirements of the New Zealand Standards. Wind loading or Human Impact requirements must always be allowed for when specifying toughened glass and these MUST always be considered first.