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Questions tagged [measurement]

30 questions
21
votes
2 answers

Where do measurements start on a ruler/tape measure

I feel really dumb asking this question, but I need help reading the lines on my tape measure. I need to make precise measurements, but given the thickness of the inch lines, I'm not sure how. I've added lines in the following picture. I assume 1…
Ben A.
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1 answer

What is the purpose of the notch at the end of the depth probe on callipers?

I have read this question about the shape of the jaws of callipers, but it didn't explain why there is a small notch at the end of the depth probe. You can see it on the far right of this image: It could be as simple as allowing it to go into a…
Daniel
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11
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7 answers

How do you measure the inside of something (like a cabinet)?

Usually I use a tape measure to do carpentry, but a problem arises when I need to take a precise inside measurement. Because the tape is longer than the area inside the cabinet (or whatever it is) I can only bend the tape and estimate the distance,…
Tyler Durden
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3 answers

How can I measure the actual amperage rating of my circuits so I can match it with correct fuses/breakers?

My house has a fuse panel instead of a circuit breaker panel, and as such it's way easier for the wrong ones to be installed. I don't trust that the previous tenant had the right ones in the right sockets. Is there a way I can measure the actual…
Atario
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6
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2 answers

How do I measure my recess for a shelf accurately?

I have a recess in a room about 60x 200cm, but it isnt perfectly rectangular. I'm not even sure the drywall is particularly straight. I want to put a built in shelf there - any advice on how to cut the shelf to fit the recess well?
Oliver Walters
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6
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3 answers

Best Practices for Measuring Screw/Bolt TPI?

It is extremely nice to be able to use a caliper to measure screw/bolt major diameter (and length) to find correct replacements. However I am struggling to come up with a good way to determine accurate threads per inch (TPI; eyeball counts are…
bjsdaiyu
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5
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2 answers

Are recipes for render expressed by ratio of weight or ratio of volume?

I'm currently mixing render to cover ugly brick walls in my front garden. Let's say I want to use this recipe for the top coat, just for an example: Cement 1 parts Lime 1 parts Sharp Sand 2 parts Soft Sand 2 parts The exact recipe isn't critical…
spl
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4
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3 answers

How can I fit a board to walls intersecting at an obtuse angle?

I want to mount a board to the wall like in the image. It's currently rectangular, so I need to cut out the blue section. How do I mark the board correctly before cutting? It's not quite trivial, because the angle Alpha is more than 90 degrees,…
Bennypr0fane
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3
votes
3 answers

Door size for 32-7/8" door frame

Looking to install a cheap slab door in this door frame, which measures 32"7/8 at it's widest point: I was going to get a hollow 32" slab door, but I'm worried that there will be a noticeable gap. There doesn't seem to be any options for 33" doors…
sacuL
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2
votes
1 answer

Storm door on odd sized frame

I just bought a storm door for my house's front door (HD custom order). Of course, I followed directions measuring the door opening, but without considering that I have an old house, and the door frame itself is a little odd. I've attached photos…
Davide
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1
vote
2 answers

What size insulation should I buy for my AC lines?

There is zero tube insulation on the AC line on the roof of my condo. The line appears to be made of two different pipes welded together of different diameters. Total pipe length outside is about ten feet long. 1 foot of pipe leading inside the home…
David Reed
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1
vote
1 answer

Measuring windows for replacement

I'm a little unclear on how to measure windows for replacement. Most reading I've found says to measure the opening for the sash— sill to head, and jamb to jamb. My questions are: Why isn't it the rough opening size that matters? It seems like the…
trbabb
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1 answer

What are these little diamonds on my tape measure?

Not a very important question, but I'm wondering what the little diamonds are on my tape measure. It's a Stanley Fatmax from the UK © 2011. The first one is at ~488 mm (~19.2 inch), and then every ~488 mm after that along the tape, but they don't…
Paul Uszak
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How do I read the specifications for this Panasonic microwave trim kit?

The web page for the NN-TK922SS 27" Wide Trim Kit for select Panasonic Microwave Ovens includes these specifications: TRIM KIT OUTER SIZE Side A: 18-9/16" Side B: 27" TRIM KIT INNER SIZE Side C: 24-5/8" Side D: 13-7/16" CABINET OPENING Side E:…
Ellen Spertus
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1 answer

Do plumbing accessories often come with metric nuts?

I just bought a standard faucet connection hose from a popular big-box hardware store, 1/2" FIP on one end and 3/8" compression on the other. Brand name BrassCraft, made in Taiwan. But my regular wrenches don't fit the nuts. For the 3/8" end my…
Mark Ransom
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