My kitchen floor is tiled three-quarters of the way across. The last quarter was finished with carpet as the so-called "dining area". Adjacent to the kitchen is a utility room with washing machine, downstairs lavatory etc. Its floor is also tiled.
I would really like to replace the carpeted area with tiles that match the other floors, but I can't be sure there isn't a slight incline from one of the floors to the other.
One way I can think of measuring how even the floors are would be with two wood blocks, a very long straightedge and a spirit level. But I don't have anything that long (at least 2.5m) that is dead straight.
Another idea is to somehow make use of the laser distance meter I have. Supposing I placed the meter on one tiled floor and a marked piece of card on the other. I could see where the laser beam hit the card, then swap the two over and repeat.
Any ideas? Maybe a taut length of string could be used somehow?
I first thought of just pointing the laser meter and the ceiling from floor level, but the ceilings in kitchen and utility room are not exactly at the same height because the utility room is an extension to the garage which is a separate structure to the main house. (Separate, but "lean-to".)
MM