Rebar Bending Schedule

In simple terms, a bar bending schedule is a list of all the reinforcement bars needed for a particular concrete component within a build. This could include multiple different types of bar, with different diameters, lengths and bends.

Rebar is often used in a concrete raft foundation, concrete foundation, concrete retaining wall, basement, concrete pad foundation. The rebar is designed by a structural engineer who will specify the amount, diameter, and length of the rebar in their calculations. What most strucutral rebar calculations don’t do is produce a detailed list, or bending schedule of every item of rebar. The untrained person may find this difficult. Here at onlineBEAM.co.uk we can produce a full rebar bending schedule for your reinforced concrete foundation. 

What to do if you need our help – Please email us your structural calculations for your reinforced concrete, your floor plans, and we can put together a full rebar bending schedule.

Call us on 07922 148 701 or 0208 058 0078, email support@onlinebeam.co.uk, CHAT or WhatsApp us to discuss your project or send plans so we can design a solution to your home extension or project. Or fill out the contact form below.

Bending of steel reinforcing bar is covered by BS8666:2020.

Below shows the shapes and formula covered in the current standard.

Shape Code 00

Shape Code 01

Shape Code 11
BS8666 Shape Code 00 rebar bending schedule Rebar Bending Schedule Shape00 300x66 BS8666 Shape Code 01 rebar bending schedule Rebar Bending Schedule Shape01 300x66 BS8666 Shape Code 11 rebar bending schedule Rebar Bending Schedule Shape11 300x113
Length = A (Cut to Length) Length = A (stock lengths) Length = A + (B) – 0.5r – d

Shape Code 12

Shape Code 13

Shape Code 14
BS8666 Shape Code 12 rebar bending schedule Rebar Bending Schedule Shape12 300x117 BS8666 Shape Code 13 rebar bending schedule Rebar Bending Schedule Shape13 300x124 BS8666 Shape Code 14 rebar bending schedule Rebar Bending Schedule Shape14 300x218
Length = A + (B) – 0.43r -1.2d Length = A + 0.57B + (C) – 1.6d Length = A + (C)

Shape Code 15

Shape Code 21

Shape Code 22
BS8666 Shape Code 15 rebar bending schedule Rebar Bending Schedule Shape15 300x154 BS8666 Shape Code 21 rebar bending schedule Rebar Bending Schedule Shape21 300x116 BS8666 Shape Code 22 rebar bending schedule Rebar Bending Schedule Shape22 300x123
Length = A + (C) Length = A + B + (C) – r -2d Length = A + B + 0.57C + (D) – 0.5r – 2.6d

Shape Code 23

Shape Code 24

Shape Code 25
BS8666 Shape Code 23 rebar bending schedule Rebar Bending Schedule Shape23 300x169 BS8666 Shape Code 24 rebar bending schedule Rebar Bending Schedule Shape24 300x183 BS8666 Shape Code 25 rebar bending schedule Rebar Bending Schedule Shape25 300x140
Length = A + B + (C) – r – 2d Length = A + B + (C) Length = A + B + (E)

Shape Code 26

Shape Code 27

Shape Code 28
BS8666 Shape Code 26 rebar bending schedule Rebar Bending Schedule Shape26 300x151 BS8666 Shape Code 27 rebar bending schedule Rebar Bending Schedule Shape27 300x137 BS8666 Shape Code 28 rebar bending schedule Rebar Bending Schedule Shape28 300x127
Length = A + B + (C) Length = A + B + (C) – 0.5r – d Length = A + B + (C) – 0.5r – d

Shape Code 29

Shape Code 31

Shape Code 32
BS8666 Shape Code 29 rebar bending schedule Rebar Bending Schedule Shape29 300x179 BS8666 Shape Code 31 rebar bending schedule Rebar Bending Schedule Shape31 300x119 BS8666 Shape Code 32 rebar bending schedule Rebar Bending Schedule Shape32 300x161
Length = A + B + (C) Length = A + B + C + (D) – 1.5r – 3d Length = A + B + C + (D) – 1.5r – 3d

Shape Code 33

Shape Code 34

Shape Code 35
BS8666 Shape Code 33 rebar bending schedule Rebar Bending Schedule Shape33 300x151 BS8666 Shape Code 34 rebar bending schedule Rebar Bending Schedule Shape34 300x125 BS8666 Shape Code 35 rebar bending schedule Rebar Bending Schedule Shape35 300x159
Length = 2A + 1.7B + 2(C) – 4d Length = A + B + C + (E) – 0.5r – d Length = A + B + C + (E) – 0.5r – d

Shape Code 36

Shape Code 41

Shape Code 44
BS8666 Shape Code 36 rebar bending schedule Rebar Bending Schedule Shape36 300x155 BS8666 Shape Code 41 rebar bending schedule Rebar Bending Schedule Shape41 300x117 BS8666 Shape Code 44 rebar bending schedule Rebar Bending Schedule Shape44 300x118
Length = A + B + C + (D) – r – 2d Length = A + B + C + D + (E) – 2r – 4d Length = A + B + C + D + (E) – 2r – 4d

Shape Code 46

Shape Code 47

Shape Code 48
BS8666 Shape Code 46 rebar bending schedule Rebar Bending Schedule Shape46 300x113 BS8666 Shape Code 47 rebar bending schedule Rebar Bending Schedule Shape47 300x239 BS8666 Shape Code 48 rebar bending schedule Rebar Bending Schedule SC Shape48
Length = A + 2B + C + (E) Length = 2A + B + 2C + 2q – 3r – 6d Length = 2A + B + 2(C) – r – 2d

Shape Code 51

Shape Code 52

Shape Code 56
BS8666 Shape Code 51 rebar bending schedule Rebar Bending Schedule Shape51 300x215 BS8666 Shape Code 52 rebar bending schedule Rebar Bending Schedule SC Shape52 BS8666 Shape Code 56 rebar bending schedule Rebar Bending Schedule Shape56 300x187
Length = 2(A + B + (C)) – 2.5r – 5d Length = 2(A + B) + 2(C) – 2.5r – 5d Length = A + B + C + D + 2E – 1.5r – 3d

Shape Code 63

Shape Code 64

Shape Code 67
BS8666 Shape Code 63 rebar bending schedule Rebar Bending Schedule Shape63 300x223 BS8666 Shape Code 64 rebar bending schedule Rebar Bending Schedule Shape64 300x171 BS8666 Shape Code 67 rebar bending schedule Rebar Bending Schedule Shape67 300x189
Length =2A + 3B + 2(C)- 3r – 6d Length = A + B + C + 2D + E + (F) – 3r – 6d Length = A

Shape Code 75

Shape Code 77

Shape Code 98
BS8666 Shape Code 75 rebar bending schedule Rebar Bending Schedule Shape75 300x300 BS8666 Shape Code 77 rebar bending schedule Rebar Bending Schedule Shape77 300x175 BS8666 Shape Code 98 rebar bending schedule Rebar Bending Schedule Shape98 300x160
Length =∏ (A – d) + B + 25 Length = C ∏ (A – d)  Length = A + 2B + C + (D) – 2r – 4d

Reinforcing Bending Limitations.

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 Minimum dimensions rebar bending schedule Rebar Bending Schedule BS8666 minimum

This translates to the following dimensions

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

Reinforcement Bending Schedule Notations:

H H For diameters ≤12 mm, Grade B500A, Grade B500B or Grade B500C conforming to BS 4449:2005+A3:2016
For diameters ˃12 mm, Grade B500B or Grade B500C conforming to BS 4449:2005+A3:2016
A A Grade B500A conforming to BS 4449:2005+A3:2016
B B Grade B500B or Grade B500C conforming to BS 4449:2005+A3:2016
C C Grade B500C conforming to BS 4449:2005+A3:2016
D Smooth Plain round bar, straight shape code 00, for dowel bars only conforming to BS EN 13877-3
S S The specific grade(s) and steel designation number(s) of ribbed stainless steel conforming to
BS 6744 and BS EN 10088 shall be stated on each relevant bending
X X Reinforcement of a type not included in the above list having material properties that are
defined in the design or contract specification
NOTE 1 In the Grade description B500A, etc., “B” indicates reinforcing steel.
NOTE 2 Within the ranges given, the grade(s) supplied for notations H and B are at the supplier’s discretion.
NOTE 3 A specific grade(s) and type(s) of ribbed stainless steel conforming to BS 6744 and BS EN 10080
should be stated on each relevant bending schedule.