Measure the length of each section in feet
Add all section lengths together
If measurements are in inches, divide by 12 to convert to feet
If measurements are in yards, multiply by 3 to convert to feet
For rectangular spaces, add the lengths of all sides you need to cover
For trim, fencing, or molding, use the total run length in feet
For multiple pieces, calculate each piece separately and then total them
Round to the nearest desired fraction if needed
Use the formula: linear feet = total length in feet