SPMH Box Quantities Timber depth
100mm 125mm 150mm 175mm 200mm 225mm 250mm
38 50
45 40 30 25 25 25
44 40
40 40 30 25 25 25
SPMH Safe Working Loads (kN) Masonry Strength 2.8 N/mm2 Nominal Joist
depth
100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm
SPMH depth
100mm 3.08 125mm 3.21 140mm 3.28 165mm 3.40 190mm 3.52 215mm 3.65 240mm 3.65 265mm 3.65
Masonry Strength 4.0 N/mm2 Nominal Joist
depth
100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm
SPMH depth
2.86 3.05 3.07 3.29 3.43 3.43 3.43
47 40
40 40 30 25 25 25
50 40
40 40 30 25 25 25
Timber Width 63
40 40 40 30 25 25 20
75 40
30 25 20 20 20 15
89 30
30 25 20 20 20 15
100 30
20 20 20 15 15 15
125 n/a
15 15 15 10 10 10
150 n/a
n/a 15 10 10 10 10
38 - 50 63 - 75 89 - 150 2.86
n/a n/a n/a n/a n/a n/a n/a n/a
100mm 2.84 125mm 3.06 140mm 3.19 165mm 3.41 190mm 3.64 215mm 3.87 240mm 3.87 265mm 3.87
Installation Details
The back plate of the joist hanger must be flush against the supporting masonry.
A minimum of 675mm of cured masonry must be in position above the joist hanger flanges before any load is applied.
Timber joists should be cut square and butt up to the back face of the hanger with a maximum allowed gap of 6mm.
Nail to the timber joist through all pre-punched holes in each side gusset with BPC 30x3.75mm sherardized square twist nails (see page 19).
It is recommended that ceiling joists are notched at the hanger base to achieve a level surface when using plasterboards.
Type ‘R’ return hangers and Type ‘D’ straddle hangers allow easy location and alignment of joists during construction.
Heavy Duty Restraint Straps must be used with all types of SPMH joist hangers to provide lateral restraint.
To order or find out more
call 01924 364 794 or scan the QR code.
® Manufactured in the UK
www.bpcfixings.com 5
38 - 50 63 - 75 89 - 150 2.93
3.18 3.33 3.57 3.83 3.87 3.87 3.87
4.17 4.17 4.08 3.99 3.90 3.81 3.81 3.81
Joist Widths
Joist Widths
Masonry Strength 3.5 N/mm2 Nominal Joist
depth
100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm
SPMH depth
100mm 2.67 125mm 2.86 140mm 3.05 165mm 3.25 190mm 3.44 215mm 3.63 240mm 3.63 265mm 3.63
Masonry Strength 7.0 N/mm2 Nominal Joist
depth
100mm 125mm 150mm 175mm 200mm 225mm 250mm 275mm
SPMH depth
38 - 50 63 - 75 89 - 150 2.77
2.98 3.19 3.40 3.61 3.82 3.82 3.82
n/a n/a n/a n/a n/a n/a n/a n/a
100mm 3.13 125mm 3.55 140mm 3.80 165mm 4.22 190mm 4.63 215mm 5.05 240mm 5.05 265mm 5.05
38 - 50 63 - 75 89 - 150 4.29
4.62 4.87 5.22 5.58 5.94 5.94 5.94
4.47 4.47 4.42 4.36 4.31 4.25 4.25 4.25
Joist Widths
Joist Widths
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