Classification by cross-sectional width (main specification)
This is the core size parameter of T-keels, directly determining load-bearing capacity and applicable scenarios. Common specifications include:
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T15: With a cross-sectional width of 15mm, it belongs to small-sized T-keels, usually 0.5-0.8mm thick. It has weak load-bearing capacity and is suitable for small-area, lightweight ceilings (such as local ceilings in home kitchens and bathrooms).
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T20: With a cross-sectional width of 20mm, it is a medium-sized specification, 0.6-1.0mm thick. It has moderate load-bearing capacity and is suitable for small to medium commercial spaces (such as office cubicles, small exhibition halls).
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T24: With a cross-sectional width of 24mm, it is a large-sized specification, 1.0-1.2mm thick. It has strong load-bearing capacity and is the mainstream choice for large-area ceilings in public spaces (shopping malls, supermarkets, large exhibition halls).
- T32: With a cross-sectional width of 32mm, it is a large-sized specification, 0.8-1.2mm thick. It has strong load-bearing capacity and is the mainstream choice for large-area ceilings in public spaces (shopping malls, supermarkets, large exhibition halls).
- T38: With a cross-sectional width of 38mm, it belongs to heavy-duty T-keels, 1.0-1.5mm thick. It has extremely strong load-bearing capacity and is suitable for industrial or high-load ceilings that need to bear heavy equipment (such as large lamps, air ducts) (factory workshops, gymnasiums).
II. Classification by length (common to main runners and cross tees)
Length is selected according to ceiling span and installation requirements. Common standard lengths are:
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Main runners: Mostly 3660mm (12 feet) or 3000mm. They can be extended with butt joints to adapt to the longitudinal framework of large-area ceilings.
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Cross tees (transverse keels): Their lengths match the spacing of main runners. Common lengths are 600mm, 1200mm, and 1500mm (corresponding to transverse support when the spacing of main runners is 600mm or 1200mm). In some special scenarios, there are short sizes such as 300mm and 900mm.
III. Classification by thickness (affecting load-bearing capacity)
For the same cross-sectional width, greater thickness means stronger load-bearing capacity. Common thickness ranges are:
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Lightweight T-keels (T15-T20): 0.5-0.8mm
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Medium T-keels (T20-T24): 0.8-1.0mm
- Heavy-duty T-keels (T24-T38): 1.0-1.5mm
Summary
The core size of T-keels is the cross-sectional width (e.g., T15/T24/T32/T38), with length and thickness as auxiliary parameters. When selecting, it is necessary to consider the ceiling area, load requirements (weight of facing panels, equipment weight), and space type. For example: T15-T20 is sufficient for home use, T24 for shopping malls, and T38 for industrial scenarios.