I have a great room, a hallway, and three bedrooms that I will be laying 3/4 inch, 3.25 inch wide prefinished Brazillian Cherry (main floor of ranch house, 3/4 inch ply subfloor, about 1400 sq ft total). The rooms all interconnect, so I'm thinking (and hoping) that I can lay it all as a single floor. Fortunately the hallway and the long run of each room is perpendicular to the joists.

One, can I in fact do all of this without transitions? The longest single run in any particular location is about 23 feet.

Two, I'm concerned about squareness. If I start in the bedroom that's on one end, and the floor is square to that room, what happens if I get into another room and the floor isn't square to that second room? I saw a reference in another thread about snapping a control line, but I guess I'm not sure how or where to do that in this situation.

Thanks for any advice anyone can offer. This is really a great forum!

Joe

You should consider starting in the middle or close to the middle depending on where your starting line ends up. To go the other way use spline(slip tongues). Use a plywood seam as a reference point not the walls. Chances are that the floor will not be square from a wall in one room to a wall in another room. More importantly make sure your starting line is straight. In all my years of installation I've found very few "square walls". You do not need thresholds at the doorways. To make it easier for yourself you could turn a board perpendicular at the bedroom doorways.