With questions like this it always helps to know where you are. 28mm worktops are crap and generally only available up to 3.1 metres. For 4 metres you nee dto go to 38/40mm, so try Montague L. Meyer or Silverman's. Another source is Howden Joinery, but beware as their tops are slightly wider than the standard 600mm. The best brands to go for include Duropal, Prima, etc. Remember that trade stuff is normally sold sans edging strip which is purchased separately from the same supplier
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