**USE THIS MENU TO LOCATE MORE TIPS FOR EVERYDAY MATH**

- Calculating for Contractors (Estimating Tips, Mark up & Gross Profit)
- Calculating Area & Volume for Geometric Shapes
- Calculating & Estimating Concrete Slabs & Masonry Blocks
- Calculating Brick, Concrete, Footers, and Mortar
- Calculating Paint & Wallpaper
- Calculating Roofs & Gables (Waste Factors, Felt, Shingles, Nails Etc.)
- Calculating Wall Studs, Drywall, Ready Mix, Tape, Joint Compound, Nails & Screws.
- Calculating Wall Tile & Floor Tile
- Calculating Stairs, Stair Runs, Risers & Stair Terminology
- Calculating Slopes, Soil, Fill Material, Excavation Tips & Color Code for Underground lines

**Using the Table**

- Add the length of each wall together (Total Linear Feet).
- In the first column, identify the closest "total perimeter" and round up.
- Identify the corresponding number based on your ceiling height. (this is the number of rolls you will need.

- Add the total linear feet of walls.
- Multiply the total linear feet by the ceiling height for the total area.
- Divide the area by 30.

**Wallpaper**

** Using the Formula**

**Using the Table**

- Identify your surface in the corresponding "exterior" or "interior" table.
- Divide your total area to be painted by the number in the first column.
- Add the "second" coat. (if needed)

**Estimating Ceiling Paint**

- Multiply length of room by the width of the room to find ceiling area.
- Divide the area by 350.

**Estimating Trim Paint**

- Add the total linear feet of trim.
- Multiply the total length by .5 (or the exact width of trim).
- Divide by 350.

**Estimating Wall Paint**

- Add the length of each wall together.
- Multiply the total length of the walls by the ceiling height (this is the wall area).
- Subtract the square feet of the openings from the total wall area.
- Divide the remaining square feet by 350* to determine the number of gallons needed and increase this number by the amount of coats you plan to apply. (*Use the table below or check your paint can)

*Example: *Applying two coats, how many gallons of paint will you need for a room that is 12 x 14 with 9' ceilings? (Note: Total square foot of openings is 45).

- 12 + 12 + 14 + 14 = 52
- 52 x 9 = 468
- 468 - 45 = 423
- 423 / 350 = 1.21 x 2 coats (you need 2.5 gallons of paint)

**Pratte Construction uses Premium Sherwin Williams coatings**

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