Ceiling Joists Load Table

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Section Uniform Load (kN/m²) at Joist Spacing (mm)
Dead / Live Dead / Live Dead / Live Dead / Live
0.25 / 0.25 0.50 / 0.25 0.25 / 1.50 0.50 / 1.50
400 600 400 600 400 600 400 600
150M12 7.10 5.79 5.86 5.29 4.41 3.85 4.39 3.83
150M15 8.00 6.55 6.63 5.67 4.76 4.15 4.72 4.15
150M20 8.00 7.61 7.69 6.50 5.23 4.57 5.16 4.57
200M12 8.52 6.96 7.04 5.95 5.08 4.50 4.90 4.33
200M15 10.00 9.31 9.41 7.68 5.97 5.29 5.77 5.10
200M20 10.00 10.00 10.00 9.04 6.78 5.83 6.33 5.63
250M16 13.27 11.59 11.59 9.63 7.46 6.09 7.02 5.84
250M20 14.26 12.45 12.45 10.67 8.12 6.75 7.79 6.36
300M20 15.00 12.52 12.66 10.34 8.01 6.54 7.54 6.16
300M29 15.00 15.00 15.00 12.84 9.95 8.12 9.37 7.65

Maximum spans in above Joist load tables based on:

  1. Unfactored dead and live loads.
  2. Imposed load deflection limited to span/360.
  3. Dead + Imposed load deflection limited to span/200.
  4. Blocking and strapping at mid span for spans < 6.0m. For spans over 6.0m blocking and strapping required at max 3.0m spacing.
  5. Boarding fixed to the joists at maximum 300mm centres.
  6. Joists fixed into 2.0mm gauge tracks at each end.

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