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Load Span Tables

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Hollowcore Load Span Table

These tables are provided as a guide only. Please Contact Us for specific information.

The spans indicated below have not been limited to 50 x unit depth usually used to minimise the dynamic movement in the planks. We therefore do not recommend spans greater than the following: 150mm planks — 7.50m, 200mm planks — 10.00m &  250mm planks — 12.50m. Spans that exceed this are shown in grey.

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Our dedicated sales and estimating team are on hand to answer any of your queries. Please send any questions to estimating@milbank.co.uk or alternatively call us on 01787 223 931

Hollowcore Load/Span Table (Non-Composite)

Overall Structural Depth(mm)Unit Depth (mm)Self WeightSelf Weight + 1.5nN/m2 for Architectural Finishes (or other Dead load) + Imposed (Live) Load shown below
0.751.52.02.53.04.05.010.015.0
1501502.489.058.408.057.707.456.956.555.254.50
1501502.958.507.957.657.357.106.656.305.104.40
2002002.9710.7010.059.559.308.958.407.956.455.55
2502503.4612.0011.3010.8510.5010.159.609.107.403

 

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Non-propped Composite Hollowcore Load/Span Table (50mm Structual Topping)

Overall Structural Depth(mm)Unit Depth (mm)Self Weight inc. Topping (Kn/m2)Self Weight + 1.5nN/m2 for Architectural Finishes (or other Dead load) + Imposed (Live) Load shown below
0.751.52.02.53.04.05.010.015.0
2001503.688.358.057.807.657.457.106.855.755.10
2502004.179.909.459.208.958.758.358.156.805.95
3002504.6611.0010.6010.3510.059.959.409.057.656.75

 

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Propped Composite Hollowcore Load/Span Table (50mm Structual Topping)

Overall Structural Depth(mm)Unit Depth (mm)Self Weight inc. Topping (Kn/m2)Self Weight + 1.5nN/m2 for Architectural Finishes (or other Dead load) + Imposed (Live) Load shown below
0.751.52.02.53.04.05.010.015.0
2001503.688.858.458.208.007.807.407.105.905.20
2502004.1710.209.759.509.209.008.608.206.906.05
3002504.6611.3510.8510.5510.3010.059.609.207.756.85

 

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Beam and Block Load Span Tables

The load/span tables show the maximum clear span for both domestic and other loading conditions, such as nursing homes, hotels and commercial developments. These tables are are provided as a guide only. Please Contact Us for specific information.

Beam and Block Load/Span Tables T155

155mm deep T beam (1 hour fire resistance) Medium Density Infill blocks 1450kg/m3Maximum Clear Span* in metres below allows for the characteristics live loads as stated + Self weight + 1.8 kN/m2(75mm Screed) finishes + 1.00 kN/m2 partition allowance
Beam centres(mm)Block Spacing'Self-Weight (kN/m2)Imposed Live Load kN/m2
0.751.502.002.53.004.005.007.50
beam1510W1.783.753.503.303.203.052.852.702.35
beam2398A1.884.203.903.753.603.453.253.052.70
beam3285N2.064.954.604.404.204.153.803.603.15
beam4620DW2.114.704.404.204.053.903.653.453.05
beam5508DA2.265.154.804.604.454.254.003.803.35
beam6395DN2.505.705.355.154.954.804.504.253.75
beam7505TN2.756.105705.505.305.104.804.754.05

*Clear span between supporting walls

‘ W = wid(440mm) A = Alternate (440+215) N = Narrow (215mm)

DW = Double beams Wide

DA = Double beams Alternate

DN = Double beams Narrow

TN = Triple beams Narrow

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Beam and Block Load/Span Tables T225

225mm deep T beam (1 hour fire resistance) Medium Density Infill blocks 1450kg/m3Maximum Clear Span* in metres below allows for the characteristics live loads as stated + Self weight + 1.8 kN/m2(75mm Screed) finishes + 1.00 kN/m2 partition allowance
Beam centres(mm)Block Spacing'Self-Weight (kN/m2)Imposed Live Load kN/m2
0.751.502.002.53.004.005.007.50
beam8510W2.075.154.804.654.454.354.053.853.45
beam9398A2.265.755.405.205.004.854.554.353.85
beam10285N2.596.606.256.005.805.655.355.054.55
beam11620DW2.606.355.955.755.555.405.104.854.35
beam12508DA2.866.856.506.256.055.905.555.304.75
beam13395DN3.277.557.156.956.756.556.205.905.30
beam14505TN3.657.957.607.357.156.956.606.305.70

*Clear span between supporting walls

‘ W = wid(440mm) A = Alternate (440+215) N = Narrow (215mm)

DW = Double beams Wide

DA = Double beams Alternate

DN = Double beams Narrow

TN = Triple beams Narrow

Click Here View / Print PDF

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