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bobkat 08-01-2011 04:34 AM

fiberglass interior Hollow core door
how do I shorten new interior fiberglass hollow core doors

oh'mike 08-01-2011 06:05 AM

Sorry--I've never seen a fiberglass interior door--Might want to call the manufacturer for the best methods.--Mike--

bobkat 08-01-2011 06:38 AM

Thanks, hope you can still help, the real issue is:
I just bought them and a friend called them fiberglass, but I didn't choose them for that reason. Whatever the shell, the doors are interior hollow core 6 panel doors that are completely finished. My problem was the process for shortening them requires using wood glue when replacing the plug. If these are not fiberglass I don't know what that material is,:confused1: if it isn't wood and isn't porous, should I use another type of glue to make sure it is adhered well. I got them at Lowe's. I'm in SE Texas, near Galv Island. Thank you, hope you can help.

oh'mike 08-01-2011 06:56 AM

A glue like Gorilla Glue will hold to odd materials. Be careful as it's an ugly color and swells a bit as it cures--wipe off any that gets on the surface of the doors.

A table saw is the handiest tool for cutting new 'plugs' for the door bottoms.

Watch your fingers and always use a pusher to guide the wood through the blade.

kwikfishron 08-01-2011 06:59 AM

199 Attachment(s)

Originally Posted by oh'mike (Post 697907)
Be careful as it's an ugly color

It also comes in clear now. :clap:

oh'mike 08-01-2011 07:04 AM

Oh, Goody!!! Now we get clear goo all over the place instead of tobacco spit colored!

kwikfishron 08-01-2011 07:37 AM

199 Attachment(s)
There is defiantly a learning curve to using that stuff.

They also now have a non-expanding formula but I haven’t tried it yet.

oh'mike 08-01-2011 07:44 AM

I've only used one or two bottles of the stuff----It has its uses,that's for sure.

Mostly I've had to try to repair the mess left behind after a homeowner used it to "repair" loose crown molding on high end cabinetry.

TrapperL 08-01-2011 08:56 PM

Lowes sells a 6 panel hollow core hardboard door that has a white prime coat on it. Maybe those are the doors. If you cut them off and remove the bottom rail, you obviously need to replace it. It does not require it being a 100% long piece meaning it can be shorter than the opening. You'll be cutting a piece of wood 1 1/8" wide to fill the space and whatever length necessary. I've cut this out of 1x and 2x material and it really makes no difference. You can hold the hardboard open enough to get the rail back in with a coat of glue. Yellow glue is plenty good for this. I avoid Gorilla glue at all costs. Good glue, hard to work with. You can put a small brad at each end of the rail to hold it in place while the glue dries.

Sorry, I just reread yer post and didn't really answer the question as to how to cut them off. I have a straight edge I use that I got at harbor Freight. It's adjustable to any length and has a squeeze type mechanism to hold it in place. I use this as a guide for my circular saw using a plywood blade. If you cut more than 3/4" off of the bottom, you'll more than likely have to replace the bottom rail. Here's the straight edge I use except mine is 6 foot long:

oh'mike 08-02-2011 06:02 AM

Trapper---Nice clamp!

Ron6519 08-07-2011 10:20 AM


Originally Posted by bobkat (Post 697879)
how do I shorten new interior fiberglass hollow core doors

Post a photo of the door.

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