Rafter Pro Roof Layout Square

Many conventional roofing products such as shingles mandate a slope no lower than 2 12.

Rafter pro roof layout square.

Use this calculator to find your rafter length. To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch. Once you ve marked the lines use your pencil to draw the diagonal length on the rafter. Roof battens lath hip end side roof battens lath main roof side wall plate or inferior purlin cut corner connection.

Today we are tackling a big beginner lesson which is common rafter layout and cutting. Locate the desired angle on the hypotenuse side of the square and pivot the tool until that angle s notch lines up with the top edge. First you ll want to find the pitch of your rafters which will help you find the length of your rafters. 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.

Common rafters are the most common type of rafter in construction. 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. Increments using a framing square. Start at the ridge.

Starting at the pivot point. If the lumber is not straight always put the high or crown side up. Place the square on the rafter material as shown in illustration a. The rafter square is designed to take advantage of the geometric laws of the right triangle.

Perfect for sheds garage patio covers. 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. Stepping off the rafter. S5 s8 s9 s12 s21 s24 s29 32 jack rafters layout right side.

Pyramidal roof framing plan truss layout jack rafters layout left side. The simplest method is to step off the layout in 1 ft. Place the square with its fence on the top edge of the lumber. More they usually claim that 4 12 is the lowest you can go without any special underlayment.

S1 s4 s13 s16 s17 s20 s25 28 hip rafters layout. Speed square made simple https youtu be rraefmk7f8 speed square made. Run is the horizontal distance that the rafter covers. Measure from this mark top edge of material a distance of 187 7 8 and put a mark.

For example the right triangle has by definition one ninety degree angle. The angle at which the. At the top of the rafter place the rafter square on the face of the rafter as in figure 7. Common rafter layout 1.

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.