1256597-oil-impregnated
no 1 pack = 1.153 m2 £9.46 2 packs =2.306 m2 £18.92 3 packs = 3.459 m2 £28.38 4 packs = 4.612 m2 £37.84 5 packs = 5.765 m2 £47.30 6 packs = 6.918 m2 £56.76 7 packs = 8.071 m2 £66.22 8 packs = 9.224 m2 £75.68 9 packs = 10.377 m2 £85.14 10 packs = 11.53 m2 £94.60

1256598-untreated
no 1 pack = 1.153 m2 £6.72 2 packs =2.306 m2 £13.44 3 packs = 3.459 m2 £20.16 4 packs = 4.612 m2 £26.88 5 packs = 5.765 m2 £33.60 6 packs = 6.918 m2 £40.32 7 packs = 8.071 m2 £47.04 8 packs = 9.224 m2 £53.76 9 packs = 10.377 m2 £60.48 10 packs = 11.53 m2 £67.20