CST/Stanley 77-910 TLM100 FatMax Tru-Laser 1/4-Inch at 100 Feet Laser Measurer

I bought this in frustration after trying to accurately measure several rooms of my house with a steel tape. Besides furniture being in the way, I found that my numbers weren't adding up with the tape if I measured the same distance two ways like going around the room or subtracting out small walls and stuff. With the laser, everything is dead on.

They say the accuracy is 1/4" over 100 feet and that seems true. You'll get slightly greater variation though in some cases because the device doesn't contain any sort of level and the case is not completely flat on any side. Therefore, it takes a little practice to know if you're shooting a straight line or a slight angle. An angle would add in a 1/8 or so here or there in large rooms, but it's pretty easy to get good at figuring out what the carpenters probably did for real. Don't do what I did and measure right at the corner or ceiling of a room. Because the drywall mud flares out a little at intersections, the room is actually slightly smaller in the corners in many cases. So get a foot or so away from any other wall and eyeball if the beam is landing in a similar spot across the room.

I still use my steel tape in some circumstances, certainly for woodworking of any kind and in some remodeling cases too. But this works great with that for anything over a couple feet and is superior for inside dimensions of any sort.

The math features (calculating area, adding, etc.) might be handy, but in reality they are very basic and you don't have memory to do things like subtract windows and doors as you go, so it's not really a replacement for a good piece of paper and maybe a spreadsheet or construction calculator.

Excellent tool. I use it about the house for home projects all the time. Very accurate. Perfect for one person measurement tasks. Always happy to not have to cope with floppy, droopy measuring tapes. I recommend it.

I work in architecture and I often have to take as-built measurements of projects. I borrowed one of these and it was a great compliment to a traditional tape. Ordered my own shortly thereafter. Great for long overall dimensions and to confirm multiple tape readings. Cut my measuring time in half which, in this business, is appreciated time savings.

I highly recommend the product, but would caution against throwing out that old tape measure. This is the right tool for certain tasks - long, straight measurements, but keep the tape handy when the distance is too short or you don't have a clear line of sight. It works exceedingly better than the old sonar kind and the functions are pretty intuitive after a few minutes.

I bought this for my husband because he measures floors for his job. Before this, he used the regular tape measures and it would break in 6 months or less so we decided to invest in this laser tape measure. He said that it's very accurate, quick and easy to use. It only needs a 1/2 in. of wall space to measure.

The first blister packed unit I bought from Home Despot was 3/4" off in 10' which was not as accurate as promised and far too inaccurate for my use. HD was good about replacing it but it took me 5 units (opened and tested at the store) before I found an accurately calibrated unit. Check before you pay! I've been using it pretty regularly for nearly a year now and wouldn't be with out it.