How To Fit Floor Joists In A Loft

The strong timbers approx 225mm x 75mm timber are secured to the wall plates brickwork and bolted to the walls.

How to fit floor joists in a loft.

Trimmer joists form the periphery of the new floor. This is possible by constructing a dwarf timber stud wall 1m to 1 5m high known as an ashlering between the two. Clearing the loft area of all debris insulation struts and temporary boards to expose the ceiling boards. Your new joists want to sit on top of the wall plate just like the attic truss does there is no need to remove the old ceiling as the truss and joist will sit together flush and nailed together down into the wall plate and to get over the angle creating weakness fix the top of the joist to the rafter use a block of wood the same thickness as the truss.

In smaller lofts it is often the case that the floor joists themselves will be used to support the sloping rafters. Take measurements in metres this makes it easier when you are buying boards. Set up a temporary work platform on a piece of board set across the ceiling joists it is safer and more comfortable than trusting your balance measure the area you plan to board out multiply the width of the loft by its length.