Most commons sheets have the long (longtitudinal) bars and the short (transverse) bars at 200mm spacings 200mm centres both ways.

If a sheet is indicated as SL62 it means that it has 6mm bars running at 200mm centres (in a 200mm square grid), SL72 is 7mm bars at 200mm. Also commonly known as "F" mesh (F stands for Fabricated, or Fabric - different to singular bars):

Square Mesh - with edge lapping wires

(Main bars are the same diameter in both directions in a 200mm grid)

• SL52 (F52 Mesh): 4.77 mm Bars - 20 kg weight per sheet
• SL62 (F62 Mesh): 6.00 mm Bars - 33 kg
• SL72 (F72 Mesh): 6.75 mm Bars - 41 kg
• SL82 (F82 Mesh): 7.60 mm Bars - 52 kg
• SL92 (F92 Mesh): 8.60 mm Bars - 66 kg
• SL102 (F92 Mesh): 9.50 mm Bars - 80 kg

Square Mesh

Main bars are the same diameter in both directions in a 100mm grid

• SL81 (F81 Mesh): 7.60 mm Bars - 105 kg

Rectangular Mesh

(Main bars are 100mm apart, cross bars are all 7.6mm bars 200mm apart)

• SL718 (F718 Mesh): 6.75 mm - 67 kg
• SL818 (F818 Mesh): 7.60 mm - 79 kg
• SL918 (F918 Mesh): 8.60 mm - 93 kg
• SL1018 (F1018 Mesh): 9.50 mm - 109 kg
• SL1118 (F1118 Mesh): 10.70 mm - 130 kg
• SL1218 (F1218 Mesh): 11.90 mm - 157 kg