Roofing material price per square calculator

Roofing Price Per Square

The Roof Price Per Square Material Tab

In Enter how much per roll for felt and how many squares per roll. The shaded areas are areas than can be changed. The fields on this page that are not shaded cannot be changed. Per Square MaterialHow are these prices calculator? Plywood: $14 per sheet x 3.125 = $43.75 per sq. Felt: $12 per roll divided by 2 = $6 per sq etc. Why change ? If you use OSB instead plywood, or if you used 25lb felt, 3 sq per roll etc.

Roofing price per square terminology

Roofing Grid Terminology

Terminology used in Price Per Square

These are called tabs: Click any of the tabs below to see details

 Each tab contains a least one grid. The Price Per Square program contains 6 grids. Grids have titles, cells, columns and rows.
The title of this grid is called Roof Removal prices.

This is called a grid:

Roof removal prices

Roofing labor price per square calculator for roofing bids

Roofing Price Per Square

The Roof Price Per Square Labor Tab

In this tab enter how much per square you pay a roofer, or how much you charge for each pitch.
The prices listed in these tables are for example only. Substitute your prices. You will need to add payroll taxes to your labor prices.

labor price per square
If you use a roof removal company they should be able to supply you with a similar price list. Remember to save your prices, so the next time you use the Per Square Calculator they will be available.

Roofing price per square overview

Roofing Price Per Square

Roofing Price Per Square Overview

Price per square was a stand alone program. Now it is integrated into RoofCalcwriter.
Price Per Square eliminates the job by job tedious task of costing out job cost details to determine how much to charge per square
Change just 1 number or click 1 Option Button and all the prices per square are instantly updated.
Once your prices are entered and saved all that is needed is to click on a few selections and your price per square is calculated.
Add your number of squares and a total price is produced.
Every price per square can be broken down as follows:
Labor per square + Material per square + Overhead per square + Profit per square = Total Price Per Square

After you have entered your prices the following items are program calculated:

 Roof Materials
  • 8 different types of roof coverings
  • 8 different felts
  • Plywood-OSB
  • Sales Tax
Roof Removal
  • Remove 1 layer on 6 different pitches from Flat to 4/12 to over 8/12
  • Remove 2 layers on 5 different pitches from Flat to 4/12 to over 8/12
  • Remove 3 layers on 5 different pitches from Flat to 4/12 to over 8/12
  • Remove Over 3 layers on 5 different pitches from Flat to 4/12 to over 8/12
 Roof Labor
  • Lay roofing on 6 different pitches from Flat to over 8/12
  • Lay plywood-OSB on 6 different pitches from Flat to over 8/12
 Roof Other
  • 3 different levels of profit
  • Sales tax (If applicatible)
  • Overhead
  • Cleanup

Roofing Price per square getting started

Roofing Price Per Square

Getting Started with Price Per Square

All the numbers supplied with the Price Per Square program are for example only. You must enter your own numbers !

Price per square tabs

The Total Price Per Square tab manages the other 3 tabs and produces totals based on roof pitch and Optionally : Roof removal, Sheathing and Tax

Price per square

You define the headings for different roof types in the top row in this grid. (Red Outline) Changes made here will be copied to the headings in all grids

grid legend

All grids contain different colors of cells to aid in entering your data
You can enter data in all the light gray and calculator cells
The white and yellow cells are system maintained.

The first time you use Price Per Sq Calculator enter prices per square for labor, materials, overhead, roof removal, cleanup

roofing labor prices

Select Labor-Tearoff tab at the top of the program. Here you will enter your prices per square for installing roofing materials, OSB and roof removal

Roof material prices

Select the Material Prices tab. Here you enter your material prices per square

Roofing profit,overhead cleanup

Select Profit, Overhead tab. Here you will enter your prices for Profit, Overhead and clean up per square.

How price per square totals roofing numbers

Roof Estimating Software Information

How Price Per Square Totals Roofing Numbers

The numbers you enter are calculated behind the scenes by the Price Per Square program. We are going to use an example to determine your your Price Per Square.
We are assuming you have entered you roof measurments

Example: Typical roof specifications
Roof Pitch: 6/12
Tear off: Yes, Layers to remove: 2
Sheathing: Yes
Sales Tax: Yes

Based on the above specifications take the following steps:

Sales tax option

Check this box
If you do not want sales tax added to materials skip this step

Sales Tax Rate

Type in your material tax rate, if used
At this point the program has calculated your materials including sales tax. Your material price and total price per square in Total Price Per Square have been updated.

6/12 roof pitch

In the roof pitch drop down list select 6/12

tear offCheck the tear-off option
layers to remove

Click the Layers drop down list select 2 The program gets your roof removal price by looking at your Roof Removal Prices for 6/12 pitch under 2 layers and copies this price to total price per square to the Roof Removal Row for all materials All the columns are totaled.

OSB per sheet

The program looks at your OSB price per sheet and multiplies it by 3.33
The program adds this price to the OSB material row in Material Price. All these columns are then totaled. These prices are copied to Total Price Per Square Material-loaded per sq row
The program then looks at your Labor Grid under the Lay OSB column , then adds this price to your labor to install roofing.
This price is added to the Total Price Per Square, Install roofing row in all columns
All the columns in Total price Per Square are then totaled.

2 ways to determine or calculate roof pitch or roof slope using a carpenters level

How to determine or calculate roof pitch or roof slope

Roof pitch is one of the most used terms in the roofing industry.
(Also referred to as roof slope or roof slant)

So what does the 7/12 in the example to the right mean?
The 7 means that the roof rises 7″ for every 12″ it runs. The example to right shows 2 different ways to determine or calculate roof pitch, also called roof slope.

In Example A, the measurements are taken from on top of the roof. Simply mark a level at 12″, hold it perfectly level and measure from the roof surface to your 12″ mark, this will give you the rise.

  Be careful with this method as a roof with many layers of shingles, or any type of roofing that is irregular can give you less than precise results.

In Example B, the measurements are taken from the bottom of the rafters, the procedure to calculate  roof pitch is the same. This method tends to be more accurate because no layers of roofing are involved. To use this method there are 3 possible places to take your measurements. 1. The underside of a barge rafter on a gable end. 2. The underside of a rafter on a overhang at the bottom of the roof  3. The underside of a rafter in the attic.

Terminology used to describe roof pitch or slope, include 7/12, 7-12, 7 to 12,7 and 12, 7 on 12.

Roof Pitch Related

Why should I know my roof pitch ?
To see roof pitch to degrees equivalents go here
To see roof pitch visual examples go here.What roof pitch can be walked on go here.
Roof Pitch Explained
4/12 Roof Pitch
5/12 Roof Pitch
6/12 Roof Pitch
8/12 Roof Pitch
9/12 Roof Pitch
10/12 Roof Pitch
12/12 Roof Pitch

Tips on measuring residential roofs

Tips on Roof Measuring, Residential  Roof

We used a method we called guestimate. Look around the the roof and guess how many squares. Write this number down and compare it to your total squares after you have added them up. This takes some experience and is not intended to be real accurate. It can give you a clue as to if your squares are in the ball park. e.g. If you wrote down 50 squares and adding your numbers totaled 25 then you need to investigate. The first and easiest thing to check is your written numbers, did you skip a written measurement ? Did you push a wrong button on your calculator ? The Roof Calculator Writer program Number Details report contains the perfect check for this.

Look around the roof and visually plan your sequence of measurements. Plan where you are going to start and finish. Don’t jump all over the roof measuring here and there. Pre- label your estimate sheet having columns for Hips, Valleys, Eaves, Rakes and Ridge.  Measure everything in sequence, such as all the hips, then all the valleys, etc.

Do not pad your measurements, such as 15′ 1″ = 16′ etc. It’s always better to know exactly where you are at. You can always add to your total squares, but know what your total squares are.

The one exception to this is your valleys, if you are using valley metal. You will have to add for your laps, where your sheets lap one another and your lap at the top.

Pay attention when reading your tape measure and writing your numbers. Numbers can get transposed. There is a lot of difference between 34 and 43. When using a 100ft tape measure a lot of the time you are reading the tape measure upside down. e.g. roof is 60ft long x 34 = 2040 sq ft. 60 x 43 = 2580 a lot of difference. 2580-2040 = 540 sq feet or 5.4 squares.

measure roofing blueprints