Laser measure or tape measure: which do you need?

What laser distance measurers do well, where a tape measure still wins, and the specs that matter for each.

By the Porch & Pick editors. .

We may earn a commission when you buy through links on this page. Learn more.

A laser distance measurer gives you a wall-to-wall measurement in a second, without a second person holding the end of a tape. It doesn't replace a tape measure, though. They're best at different jobs.

Where each one wins

Job Better tool
Measuring a room's length and width Laser
Measuring ceiling height Laser
Measuring alone over long distances Laser
Measuring furniture, boxes, small objects Tape
Marking a board for cutting Tape
Measuring around curves or outside corners Tape
Outdoors in bright sun Tape (or a laser with a viewfinder)

Laser measures: what to look for

Tape measures: what to look for

Measuring a room with a laser

A few habits make laser readings reliable:

  1. Check the reference point. Most lasers measure from the back edge of the device by default; some let you switch to the front edge or a fold-out pin for corners. Make sure you know which is set.
  2. Hold it steady and level. Brace the back against the wall and aim straight across. An angled shot reads longer than the true distance.
  3. Aim at a solid, flat surface. Glass, mirrors and very dark or shiny surfaces can scatter the beam. Put a piece of cardboard or a sticky note on the target if needed.
  4. Measure twice. Take two readings and compare; if they differ, measure again.
  5. Write it down as you go, or use the device's memory, especially when measuring several rooms for flooring or paint.

Accuracy and units

Check that the device shows the units you want (feet and inches with fractions, decimal feet or metric). For flooring and paint estimates, decimal feet are often easiest to multiply; for cutting trim, fractions of an inch are more useful.

The practical answer

Most people who own a laser measure still keep a tape measure. The laser handles room measurements quickly; the tape handles everything you'll cut, build or hang.

Questions people ask

Are laser measures accurate enough for flooring?

For measuring rooms, yes. Many flooring professionals use them. Add waste allowance for cutting as usual.

Do laser measures work outdoors?

They work, but the dot is harder to see in sunlight. Green lasers, viewfinders or a target card help.

Do I need a laser measure for occasional home projects?

Not necessarily. A tape measure does the job. A laser is a convenience that pays off if you measure rooms often.