Modifying Insulated Fiberglass Door - General DIY Discussions - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > DIY Forum > General DIY Discussions


Thread Tools Display Modes
Old 02-03-2016, 08:21 AM   #1
Join Date: Oct 2010
Posts: 2,473
Rewards Points: 790

modifying insulated fiberglass door

This is a door that leads out to the bulkhead cellar doors, which is not weather stripped. I want to replace existing wood/glass 1 3/8 door with fiberglass (will not rust), but the height is not full door height.
Can I cut fiberglass doors? Is it same as hollow core? If available, I'd just get a slab, cut from the top and keep the bottom weatherstripping/threshold. Thank you in advance.


carpdad is offline   Reply With Quote
Old 02-03-2016, 10:16 AM   #2
Exterior Construction
Windows on Wash's Avatar
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 16,155
Rewards Points: 5,244
Blog Entries: 5

They have wood blocks in the top any bottom, but I think it would just be easier to order it pre-hung and custom sized.


Windows on Wash is offline   Reply With Quote
The Following User Says Thank You to Windows on Wash For This Useful Post:
carpdad (02-06-2016)
Old 02-05-2016, 06:51 PM   #3
Join Date: Jul 2006
Location: MD/DC area
Posts: 236
Rewards Points: 307

I did exactly this about one year ago, only I used a steel door rather than fiberglass (I looked for fiberglass, but had a really hard time finding a flush fiberglass door). In my case I cut it down to about 60" (don't remember the exact measurement). I cut it from the top as you indicate. The center was filled with styrofoam and I used an old chisel to create a channel to replace the wooden block on the top that I cut off. My door was prehung, and disabled and shortened the jambs and reassembled them. I was a little nervous about how it would work, but it all went very straightforwardly.

I looked into ordering one custom sized, and maybe I didn't know the right places to look, but I honestly would have built a door from scratch before paying the prices I was given. I suspect I could have gotten much more reasonable prices if I wanted a door closer to normal height.
LanterDan is offline   Reply With Quote
The Following User Says Thank You to LanterDan For This Useful Post:
carpdad (02-06-2016)

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Window popped out in traffic! Bigplanz Automotive Repairs 12 06-27-2015 06:35 PM
Painting a Prefinished Fiberglass Front Door sore thumb Painting 6 08-16-2013 10:36 PM
Fiberglass door, gel stain, and nervous breakdown wit's end Painting 8 10-26-2011 10:10 PM
Need to replace front door, existing door non-standard size uncle Windows and Doors 1 07-25-2011 06:50 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1