Building Materials - Recent Questions, Troubleshooting & Support

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How do I open to change batteries?

It is best practice to mention device, brand, and model number if possible. I am guessing this is a garage door opener. http://precisiondoor.net/videos/liftmaster-remote-problem How to change the battery in garage door opener remote How To Replace Your Garage Opener Remote Battery

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7/28/2026 12:01:17 AM • Building... • Answered on Jul 28, 2026

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Coromaster B2B Garage Door Opener. It only opens the door halfway?

Question edited for clarity. This is an older model. Either the weight of the door is borderline for the motor and that is why it is beeping. The counterbalance system need adjusting. Or the carbon brushes on the motor need replacing. You can also try lubricating every single item that moves and the tracks to reduce rolling and sliding resistance. Use proper garage door spray or light machine oil not WD40 which goes waxy / gummy after a couple of months. https://www.google.com/search?q=Coromaster+B2B+garage+door+opener and https://www.google.com/search?q=Coromaster+B2B+garage+door+opener+opens+halfway and Beeps https://www.google.com/search?q=Coromaster+B2B+garage+door+opener+motor+beeps ..

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4/14/2026 9:15:11 AM • Building... • Answered on Apr 14, 2026

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How do you successfully clean a Bruce 3/4" hardwood floor

Check Out this link:http://www.wisegeek.com/what-is-the-best-way-to-clean-hardwood-floors.htm

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4/8/2026 10:45:35 AM • Bruce Hardwood... • Answered on Apr 08, 2026

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Craftsmen garage door opener stuck in lock mode

Push and hold the lock button on the wall console for 3 seconds and that will unlock it.

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2/16/2026 12:40:58 AM • Craftsman 1/2 HP... • Answered on Feb 16, 2026

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Are the paving stones being laid property?

1" paving would have been fine for a dog, but 2" if you are driving over them.Yes, there should be an air gap between the edge and a garage.Yes, there should be a 'fall' so that water runs away from the garage.Yes, ideally the edge of the paving should be level with, or just below the wooden trim...

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9/22/2025 11:08:38 AM • Building... • Answered on Sep 22, 2025

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Craftsman 75th anniversary garage door opener 41a5389e logic board removal

https://mltool.pro

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7/9/2025 1:04:07 PM • Building... • Answered on Jul 09, 2025

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Garage Door issue

Replace the opener

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6/3/2025 11:34:10 PM • Sears Craftsman... • Answered on Jun 03, 2025

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LM 41A5021: replaced worm, drive gears. Trolly asmbly moves forward/back 2 feet. The travel sensors limits are not engaged as nylon adjsmt sensor does not get anywhere near either end sensor.

Buy Liftmaster OEM Chamberlain Craftsman Garage Door Opener Comp... Troubleshooting. : Some garage door openers require a reset or recalibration after replacing major components.

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5/4/2025 6:06:41 PM • Building... • Answered on May 04, 2025

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Garage Door Opener. It operates sporadically. Can you determine what part is defective please?

Question edited for clarity, spelling, add magic word. Question moved from Misc category. Please always include FULL, 'make model (what it is)'. I used a generic opener category. Batteries in the remote and the garage door wall unit. https://creativedoor.com/blog/troubleshooting-guide-how-to-fix-a-garage-door-opener-that-works-intermittently ..

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4/24/2025 1:35:59 AM • Craftsman Garage... • Answered on Apr 24, 2025

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Craftsman Garage Door Opener. Sensor issues.

Old Question resurrected by an AI answer now removed.Use to front facing selfie camera of a smartphone and aim it at the sensor. You should see a very bright red dot. If you don't see it, the sensor needs replacing...

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4/6/2025 4:30:15 PM • Building... • Answered on Apr 06, 2025

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What else can I try to get it to open close? I have an old Craftsman 1/2 HP Garage Door Opener.

It sounds like you fixed it Katie.

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3/16/2025 5:06:23 AM • Craftsman Garage... • Answered on Mar 16, 2025

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LiftMaster 877LM Garage Door Keypad.

Question edited for clarity. Question moved from Misc to Maker category. Hello again Heather. Change the code completely from fresh. https://www.google.com/search?q=LiftMaster+877LM+change+code ..

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3/1/2025 7:24:28 PM • Sears Craftsman... • Answered on Mar 01, 2025

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Building a wooden floor

If by “building a wooden floor “you mean putting down hardwood flooring, my biggest advice is to invest in a $50 laser measure from Lowe’s home improvement. There are just too many mistakes that you can make with a tape.
Also look up on the web about making a spline, in order to reverse the direction of the tongue & groove of the flooring. I cost myself a lot of time and money not knowing about those.

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2/19/2025 3:44:09 PM • Building... • Answered on Feb 19, 2025

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CorroMaster 2000 Garage Door Opener. How to set the closing parameter on it please?

Question edited for clarity, spelling, add magic word.Question move from Misc category.It is not a North American make where we are.https://www.google.com/search?q=coromaster+2000+setting+limits..

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2/8/2025 6:45:57 PM • Building... • Answered on Feb 08, 2025

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How to adjust torsion springs on a garage door?

Here is a Wiki article and videos that show how it is done.

How to Adjust a Garage Door Spring (with Pictures) - wikiHow

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1/21/2025 11:01:54 PM • Building... • Answered on Jan 21, 2025

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My bathroom pocket door is stuck from the inside and I think possibly plastic piece half undone causing it to block. What can I do?

Question moved from Misc category to Doors.Shine a powerful flashlight down the pocket and see if you can see what is stopping it. You can probably make the space wider by levering the door to one side. If you can see what is causing it, you can push or hook the obstruction with a piece or 2 x 1 to move it whilst pulling the door. Yes, you can add images (or videos if on YouTube)..

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1/3/2025 12:03:31 AM • Building... • Answered on Jan 03, 2025

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Garage door won't go down.

Most sensors have small lights. One side (the emitter) usually shows a steady amber light, and the other (the receiver) shows a green light when they're working. If the green light is off or blinking, there's likely an issue.If it's not try Clean and Inspect the Sensors,Test the Door Without Sensors,Block the Beam,Check Other Causes.If none of this works, it's probably time to replace the sensors.

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1/2/2025 6:37:22 PM • Building... • Answered on Jan 02, 2025

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If I install a different garage door opener, can I keep the old rail or does it come as a unit. If I buy another brand, do I have to buy the rail assembly also

Question moved from Misc category.You can probably just buy the motor for your current one if that is the issue. A new unit comes as a complete kit.Googlemake model spare parts.'make model (what it is)' should be the first 3 words in every question please...

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1/2/2025 5:50:08 AM • liftmaster... • Answered on Jan 02, 2025

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Craftsman Garage Door Opener. It opens and closes randomly. Our remotes work sometimes. The hard-wired switch works if you hold the button until the door cycles.

Question edited for clarity.Question moved from Misc category.There are ideas in the link, but my suggestion is to clean the connectors to the motherboard in the unit. Pull them apart and spray with electrical contact cleaner. Also clean all the sensors. I would also change the channel they are operating to rule out interference.https://www.google.com/search?q=Craftsman+Garage+Door+Opener+It+opens+and+closes+randomly..

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1/1/2025 12:15:10 AM • Craftsman Garage... • Answered on Jan 01, 2025

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