Calculating How Much Wood You'll Need

Grab a tape measure, something to write with, maybe an extra person and prepare to get down on your hands and knees. Think of this process like calculating the area of a flat two dimensional shape (or shapes) on paper like you may have done in math class except you won’t have to necessarily go through the pain and agony of trying to figure it out on your own.


For the sake of this example, we’ll concentrate on rectangle or square shaped rooms. If you have unique shapes to calculate for, you’ll find some helpful math formulas on our Helpful Math Formulas page.


  1. If you’re doing more than one room, write down the name of each room before you start to record the measurements of each.
  2. Measure the entire length and width of the floor, first without accounting for nooks, pantries, closets, cut outs, etc…Make sure you measure the furthest edge of each corner. You can do this by measuring along walls or by measuring down the center of a room. Write down your measurements. If it makes it easier, draw a picture of the room with spots that indicate where doorways, windows and appliances are. It doesn’t have to be perfect, but it will help you remember which lengths are which by the time you finish.
  3. Measure the length and widths of nooks, closets and cut outs at the widest spots of each. Write down what you find.
  4. Multiply the length by the width for each section.
  5. Add the totals of each section together to get the total amount you’ll need for the room. If you do not have nooks, closets or cut outs, etc…then you should only have one section.
  6. Multiple this total number by .10 and then add that number to the total. For example, if your total square footage is 100 square feet, then multiplying this number by .10 would equal 10. Adding 10 to 100 equals 110 square feet.

100 x .10 = 10 square feet

100 + 10 = 110 square feet

This is to account for the odd numbers of lengths and widths the installer may have to remove in order to properly fit the edges of the room. In addition, because each box of wood carries planks that showcase much of the natural tree patterns and shades of the original tree, you may find a plank here or there you don’t want to appear in the final installation.

Exactly how many boxes will I need?

Your authorized Wood Monsters reseller will be able to calculate the exact amount of boxes of wood you’ll need for each room depending upon the exact hardwood product you’ve picked out. Each wood species, cut and color may contain a slightly different number of square feet per box. For example, a 6 inch wide product will have one total for square footage per box, while the 3.5 inch plank you may have chosen for another room will have a different square footage per box.

What if I’m measuring against a wall but can’t move the furniture yet?

If you’re taking measurements along each wall but cannot safely move furniture around, stop your tape measure at the very edge of the piece of furniture. Record the measurement. Move the tape measure at an exact 90 degree angle along the side edge of the furniture. If you are not sure if you’re getting an exact 90 degree angle, place the corner of a book or magazine near the edge of the tape measure, lining the back of the book or magazine up against the straight tape measure. Without moving the book or magazine out of place, place the tape measure along the top of the book or magazine. Hold the tape measure in place and then continue stretching the tape measure until it reaches the front of the piece of furniture. Move the tape measure at another 90 degree angle so it’s parallel with the wall again as before. Continue measuring this length until you reach the furthest edge of the wall.

What if I still need help figuring this out?

We or our authorized resellers would be happy to walk you through these instructions if you need assistance.