Rafter Pro Roof Layout Square

The simplest method is to step off the layout in 1 ft.

Rafter pro roof layout square. Common rafter layout 1. S1 s4 s13 s16 s17 s20 s25 28 hip rafters layout. Many conventional roofing products such as shingles mandate a slope no lower than 2 12. Today we are tackling a big beginner lesson which is common rafter layout and cutting.

Place the square as before aligning the 6 mark of the tongue and 12 mark of the body with the top edge of the rafter material. Position the square so the 6 mark on the tongue and the 12 mark on the body align with the top edge of the rafter material. More they usually claim that 4 12 is the lowest you can go without any special underlayment. Speed square made simple https youtu be rraefmk7f8 speed square made.

Perfect for sheds garage patio covers. At the top of the rafter place the rafter square on the face of the rafter as in figure 7. Increments using a framing square. Use this calculator to find your rafter length.

If the lumber is not straight always put the high or crown side up. The rafter square is designed to take advantage of the geometric laws of the right triangle. Stepping off the rafter. Start at the ridge.

Roof battens lath hip end side roof battens lath main roof side wall plate or inferior purlin cut corner connection. Starting at the pivot point. Place the square on the rafter material as shown in illustration a. Once you ve marked the lines use your pencil to draw the diagonal length on the rafter.

Pyramidal roof framing plan truss layout jack rafters layout left side. Common rafters are the most common type of rafter in construction. Pivot the layout square so that the number 7 on the common scale lines up with the edge of the rafter. For example the right triangle has by definition one ninety degree angle.

S5 s8 s9 s12 s21 s24 s29 32 jack rafters layout right side. Diy tips for common rafter installation. First you ll want to find the pitch of your rafters which will help you find the length of your rafters. 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.

Clamp stair gauges to the framing square to align rise and run. Measure from this mark top edge of material a distance of 187 7 8 and put a mark. Place the square with its fence on the top edge of the lumber. To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch.

For a gable roof the run is measured from the centerline of the ridge board to the outside edge of the top of the wall. Once you know the pitch and the total run you can lay out the cuts of the rafter in a number of ways.