Focus on Shape Codes to BS8666 2005

 

The details below offer a quick reference guide to the current BS8666 2005 Shape Codes. The details have been created as 2 pages but display as one.  Here's what you can do from here:

BS8666 2005 Shape Code Details Page 1

Shape Code 11Shape Code 12Shape Code 13
Length = A + (B) - 0.5r - dLength = A + (B) - 0.43r -1.2dLength = A + 0.57B + (C) - 1.6d
Shape Code 21Shape Code 22Shape Code 23
Length = A + B + (C) - r -2dLength = A + B + C + (D) - 1.5r - 3dLength = A + B + (C) - r - 2d
Shape Code 26Shape Code 27Shape Code 28
Length = A + B + (C)Length = A + B + (C) - 0.5r - dLength = A + B + (C) -0.5r - d
Shape Code 32Shape Code 33Shape Code 34
Length = A + B + C + (D) - 1.5r - 3dLength = 2A + 1.7B + 2(C) - 4dLength = A + B + C + (E) - 0.5r - d
Shape Code 41Shape Code 44Shape Code 46
Length = A + B + C + D + (E) - 2r - 4dLength = A + B + C + D + (E) - 2r - 4dLength = A + "B + C + (E)
Shape Code 56Shape Code 63Shape Code 64
Length = A + B + C + (D) + 2(E) - 2.5r - 5dLength =2A + 3B + 2(C)- 3r - 6dLength = A + B + C + 2D + E + (F) -3r - 6d
Shape Code 77Shape Code 98
 Length = C ∏ (A - d) Length = A + 2B + C + (D) - 2r - 4d

 

BS8666 2005 Shape Code Details Page 2

Shape Code 00Shape Code 01
Length = A (Cut to Length)Length = A (stock lengths)
Shape Code 14Shape Code 15
Length = A + (C) - 4dLength = A + (C)
Shape Code 24Shape Code 25
Length = A + B + (C)Length = A + B + (E)
Shape Code 29Shape Code 31
Length = A + B + (C) - r - 2dLength = A + B + C + (D) - 1.5r - 3d
Shape Code 35Shape Code 36
Length = A + B + C + (E) - 0.5r - dLength = A + B + C + (D) - r - 2d
Shape Code 47Shape Code 51
Length = "A + B + 2C + 1.5r - 3dLength = 2(A + B + (C)) - 2.5r - 5d
Shape Code 67Shape Code 75
Length = ALength =∏ (A - d) + B

 

BS8666 2005 Shape Code Notations Page 3


R Not covered by BS 86666 2005
  T Grade 460A or 460B conforming to BS 4449 1997
  D Grade 460A conforming to BS 4449 1997
H   Grade B500, B500B or B500C conforming to BS 4449 2005
A   Grade B500A conforming to BS 4449 2005
B   Grade B50B or B500C conforming to BS 4449 2005
C
Grade B500C conforming to BS 4449 2005
S S A specified grade and type of stainless steel conforming to BS 6744 2001
X X Reinforcement of type not included in the above list having material properties that are defined in the design or contract specification.

 

BS8666 2005 Shape Code Limitations Page 4

For all shapes with two or more bends in the same or opposite directions (whether in the same plane or not), the overall dimension given on the schedule shall always include a minimum straight of 4d between the curved portion of the bends, as shown below.  The value of 'x' shall be not less than the following:

  1. 10d for bars not exceeding a nominal size of 16mm.
  2. 13d for nominal sizes greater than 16mm.

BS8666:2005 Figure 6 bar with more than one bend

This translates to the following dimensions

DiameterMinimum
6 60
8 80
10 100
12 120
16 160
20 260
25 325
32 416
40 520