All Replies on Off by 1/4 inch

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View MisterGupton's profile

Off by 1/4 inch

by MisterGupton
posted 01-22-2018 10:40 PM

15 replies so far

View Smitty_Cabinetshop's profile


16906 posts in 3473 days

#1 posted 01-22-2018 10:43 PM

I’m going to guess the 2×4 was cut on the wrong side of your 36” mark, taking 1/8” with each cut for the overall total of 1/4”.

Just a guess.

Second guess is you cut right through the line, vs. alongside it.

Make sure cut lines have an additional mark alongside, showing where the kerf of the sawblade is to remove material.

-- Don't anthropomorphize your handplanes. They hate it when you do that. - OldTools Archive -

View MT_Stringer's profile


3183 posts in 4086 days

#2 posted 01-22-2018 10:43 PM

Was the problem the board mounted to the wall was not level?

-- Handcrafted by Mike Henderson - Channelview, Texas

View Woodknack's profile


13474 posts in 3235 days

#3 posted 01-22-2018 10:45 PM

It happens to everyone, hence the adage, measure twice, cut once.

-- Rick M,

View gargey's profile


1013 posts in 1630 days

#4 posted 01-22-2018 10:58 PM

Keep practicing… Everyone starts crappy and gets better.

Pay a bit more attention to what you’re measuring, where you’re marking, and where you’re cutting.

The “line” is a lot smaller than a saw blade, so think about measuring and cutting at the edge of the line. And make sure you know which edge (and mark it!).

View bondogaposis's profile


5844 posts in 3206 days

#5 posted 01-22-2018 11:04 PM

A line has two sides, a “good” side and a waste side. Always cut on waste side because if you don’t errors will accumulate. Like Smitty says it takes only 2 cuts with an 1/8” saw blade to equal 1/4”.

-- Bondo Gaposis

View MisterGupton's profile


2 posts in 979 days

#6 posted 01-24-2018 03:25 AM

Thanks guys for the replies. I usually do a good job at cutting my material properly but do get into the bad habit of not paying attention to the line, which is work vs waste. And the mount was level. I checked the level at all steps of assembly.
If you were somehow behind the wall, imagine the support arms bowing in at an angle. That’s how I was off 1/4 of an inch. I’m starting to think that what happened is that I attached one of the arms with the pocket holes facing inward and the other outward. Maybe that had something to do with it? I’m half tempted to rip the trim off for further inspection but I think she would kill me.

View Kelster58's profile


759 posts in 1395 days

#7 posted 01-24-2018 10:27 AM

It’s not the mistake, it’s how you recover and adjust to fix it. Your project looks great. You made adjustments and recovered well. I have been off a quarter inch or more on many projects. Welcome to woodworking. Several good “could be” suggestions here…......

-- K. Stone “Tell me and I forget, teach me and I may remember, involve me and I learn.” ― Benjamin Franklin

View Sparks500's profile


279 posts in 1185 days

#8 posted 01-24-2018 01:39 PM

A great carpenter knows how to hide his mistakes…..

-- A good day is any day that you're alive....

View bonesbr549's profile


1588 posts in 3922 days

#9 posted 01-24-2018 02:01 PM

Like other’s said we all been there. By the way, there are no “MISTAKES” , just design changes. Remember the motto, if you can’t hide it, accentuate it! I’d put some molding around it and made it stand out. more, the old “measure twice cut once works”.

Also, a story stick helps and does wonders for your accuracy.

Cheers and have fun and don’t sweat the small stuff.

-- Sooner or later Liberals run out of other people's money.

View Steve's profile


2200 posts in 1437 days

#10 posted 01-24-2018 09:09 PM

If I understand the issue correctly, I’m wondering if the 2×4 supports were perfectly straight? Or did one have a slight bow in it? or were the ends that attached the wall not exactly 90 degrees?

View Kelly's profile


3128 posts in 3799 days

#11 posted 01-24-2018 10:08 PM

Know what? The best on this site have been there. That’s why some have tag lines about being able to hide their experiences.

Heck, more than forty years in, I’ve had some pretty fancy firewood.

View woodbutcherbynight's profile


6183 posts in 3264 days

#12 posted 01-24-2018 10:08 PM

It was not a mistake, it was a educational moment. Now don’t that sound better?


-- Live to tell the stories, they sound better that way.

View Fresch's profile


500 posts in 2776 days

#13 posted 01-25-2018 09:41 PM

I have found when making things for the wife she will over look any mistakes if I leave a small piece of jewelry, say gold, diamond and she just loves my work!;)

View Andre's profile


3702 posts in 2661 days

#14 posted 01-25-2018 10:32 PM

It happens to everyone, hence the adage, measure twice, cut once.

- Rick_M

Ohhhh! I cut twice, measure once and still always too short!

-- Lifting one end of the plank.

View pete724's profile


71 posts in 1664 days

#15 posted 01-29-2018 03:34 AM

Walls are not straight or flat!

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