What centres are the service holes on the Siniat C Stud and I Studs?
Siniat C Studs (Rx gauge only) have service cut outs at 600mm centres, 300mm in from each end. The service hole is 25mm x 75mm. The heavy gauge studs (W and Y) do not have service holes.
Siniat I studs also have the same size services holes positioned 300mm in from each end and at 600mm centres.
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