How To Cut A Hip Roof Rafter

This is the line to cut along.

How to cut a hip roof rafter.

A birds mouth is a combination of the two cuts made so the roof rafter sits tightly onto the wall plates square edge. A seat cut is a horizontally level cut so the rafter can sit flat onto the wall plate. A cut on a rafter or other angled framing member that will be level when the member is installed. Lift the hip rafters into place once the ridge board is firmly in position.

Don t cut yet 2. When you attach the hip rafters nail them in place at the bottom first before nailing the top against the ridge beam. This is the pointy end of the hip. This is the line to cut along.

A cut on a rafter or other angled framing member that will be plumb vertically when the member is installed. Next set the framing square on top of the rafter beam and use a pencil to trace the outside edge of the framing square s tongue. A cut made with the saw blade set an angle. If you are using a stanley quick square move the blade to the corresponding notch for the hip rafter.

Don t cut yet 2. To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch. Measure back from this line and mark a second parallel line on both sides of the hip. This is the pointy end.

Nail the hip rafters to the ridge beam and the corners of the walls. Also it has to be cut to form a point so to cut a hip raffter plumb cut you need to set the circular saw over so it will cut 45. Dropped hips for irregular hip roofs will be shifted slightly off their centerline to compensate for the different amount of drop required for the main and hip end roofs. Mark the end plumb cut angle line back from square on both sides of the hip.

Remember on a hip rafter we use 17 to mark the level cut. Dropping a hip lowers the heel of the hip rafters while backing a hip involves beveling the top edges of the hip rafters. The hip rafter plumb cut is a different angle to a common rafter plumb cut. Hip rafter plumb cut.

Mark the end plumb cut angle line back from square on both sides of the hip. The amount of drop is determined by laying a level line anywhere on a hip rafter and measuring 1 2 the thickness of the rafter stock on the level line and then measuring the plumb distance at that point. A plumb cut this is an angle to cut that will create a vertically plumb line on the rafter.