Issue: June 2005 Section D – Rack Erection Tolerances Page D.3
FEM 10.3.01 Rack Erection Tolerances
Ref. Description (n = No of bays) Tolerance Class
400 300A
Horizontal Tolerances
A Maximum variation in individual bays ± 3mm ± 3mm
At Total deviation in rack length cumulative per bay ± 3.0n ± 3.0n
B Length difference between two rows of bays at each side ±10mm ±10mm
of an aisle; cumulative per bay (whichever is the larger) or 1.0n or 1.0n
Cx Maximum out of plumb upright perpendicular to the plane 1/350 1/500
of the upright frame
Cz Maximum out of plumb of upright in the plane of the 1/350 1/500
upright frame
D Rack depth (single or multiple frames) ± 3mm ± 3mm
E Variation in aisle width ± 20mm ± 5mm
E1 Variation in aisle width between guiderails +5,–0mm
F Straightness of aisle measured against ± 15mm ± 10mm
Aisle datum line
Ref Description Tolerance Class
400 300A
Vertical Tolerances
H3 Variation in beam level at H3 above or below the ±10mm ±10mm
reference plane (whichever is the larger) ±H3/400 ±H3/400
Jx Upright straightness between beams spaced ±3mm ±3mm
‘h’ apart (whichever is the larger) ±h/400 ±h/750
Jz Curve of upright unspliced frame H/750
Ly Maximum variation of pallet support levels between front ± 5mm ± 5mm
and rear of pallet (whichever is the larger) ±H3/1000 ±H3/2000
M Maximum beam deflection with regard to the beam span 1/200 1/200
length. Beam stiffness may be increased to give lower
deflections to suit the particular circumstances.
These tolerances are measured prior to loading.
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