Roof Length Width

The first step in a free roofing estimate is measuring the roof dimensions.

Roof length width.

The width is measured simply straight across the top of. For instance a 38 panel will have an effective coverage width of 36. The base length is simply the distance from the second corner to the third corner on the house s long side. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.

Length and width standard lengths for corrugated roofing are 8 10 and 12 feet. All formulae are below the calculator. Our roof calculator uses base length and base width to find the estimated area. Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy.

The rafter member will be longer. The metal roof length calculator calculates the distance from peak to trim so add the length you want the roof metal to extend beyond the eave trim. First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface. The width varies greatly depending on the style of roofing.

This data allows us to calculate the roof triangle as we know two sides b and c of the three sides of a right triangle the red lines in our photo at above left. If your roof measures 48 feet 15 m x 24 feet 7 3 m multiplying its length by its width would give you a square footage of 1 152 square feet 107 0 m 2. You will need to express this size in terms of square feet. For example if the roof rises 4 feet and the span is 16 feet twice the run then the pitch is 4 16 or 1 4.

One of users asked us to create calculator which will help him estimate hip roof parameters like rafter s lengths roof rise and roof area. The base width is the distance from one corner of your roof to the other at its base on the short side of your house. It is the length of this portion of the rafter. If its pitch is 6 in 12 a pitch multiplier of 1 12 multiplying 1 152 sq ft 107 0 m 2 by 1 12 would give you an overall square footage of 1 290 square feet 120 m 2.

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. If you plan to have overhang etc. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. Pitch is the incline of the roof represented as the ratio of rise to the span twice the run.