1256601-oil-impregnated
no 1 pack = 1.153 m2 £16.32 2 packs =2.306 m2 £32.64 3 packs = 3.459 m2 £48.96 4 packs = 4.612 m2 £65.28 5 packs = 5.765 m2 £81.60 6 packs = 6.918 m2 £97.92 7 packs = 8.071 m2 £114.24 8 packs = 9.224 m2 £130.56 9 packs = 10.377 m2 £146.88 10 packs = 11.53 m2 £163.20

1256602-untreated
no 1 pack = 1.153 m2 £13.58 2 packs =2.306 m2 £27.16 3 packs = 3.459 m2 £40.74 4 packs = 4.612 m2 £54.32 5 packs = 5.765 m2 £67.90 6 packs = 6.918 m2 £81.48 7 packs = 8.071 m2 £95.06 8 packs = 9.224 m2 £108.64 9 packs = 10.377 m2 £122.22 10 packs = 11.53 m2 £135.80