Concrete reinforcement mesh overlap calculator

Calculate sheets along length and sheets across width with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use sheets along length and sheets across width to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Slab length (m)
12
Slab width (m)
8
Sheet length (m)
6
Sheet width (m)
2.4
Specified longitudinal lap (m)
0.3
Specified transverse lap (m)
0.2
Sheets along length
3
Sheets across width
4
Total sheets
12
Sheet origins (m)
[[0,0],[5.7,0],[11.4,0],[0,2.2],[5.7,2.2],[11.4,2.2],[0,4.4],[5.7,4.4],[11.4,4.4],[0,6.6],[5.7,6.6],[11.4,6.6]]

Try another scenario

Slab length (m)
12
Slab width (m)
10
Sheet length (m)
6
Sheet width (m)
2.4
Specified longitudinal lap (m)
0.3
Specified transverse lap (m)
0.2
Sheets along length
3
Sheets across width
5
Total sheets
15
Sheet origins (m)
[[0,0],[5.7,0],[11.4,0],[0,2.2],[5.7,2.2],[11.4,2.2],[0,4.4],[5.7,4.4],[11.4,4.4],[0,6.6],[5.7,6.6],[11.4,6.6],[0,8.8],[5.7,8.8],[11.4,8.8]]
Calculation method

Calculation method

Sheets along length

max(1,ceil((a-e)/(c-e)))

Sheets across width

max(1,ceil((b-f)/(d-f)))

Total sheets

max(1,ceil((a-e)/(c-e)))*max(1,ceil((b-f)/(d-f)))

Sheet origins (m)

J([[i*(c-e),j*(d-f)] for j in range(max(1,ceil((b-f)/(d-f)))) for i in range(max(1,ceil((a-e)/(c-e))))])

Symbols and units
a
Slab length (m)
b
Slab width (m)
c
Sheet length (m)
d
Sheet width (m)
e
Specified longitudinal lap (m)
f
Specified transverse lap (m)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Unrotated regular rectangular mesh grid with specified laps; positive slab/sheet dimensions, 0≤lap<corresponding sheet dimension. Sheet edges may overhang and need cutting; no reinforcement adequacy. Supported limits: All numeric inputs must be finite. Only the explicitly described mathematical scenario is supported.
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