Metal in shop-bought doors - not good for trimming.

[nt900]

Hi everyone,

Has anyone encountered this before? I was trimming to size a shop-bought door but the sparks indicated something was not quite right . Have a look at the attached image, do you think the manufacturer has cocked something up during construction of this door and needed to insert this metal to hold it together.

The sticker on the side of the door certainly does not mention the possibly of hitting metal when trimming it to size. The other end had no metal in it, and I have never found another door like this.

Was not good for the saw blade I am sure, but fortunately did not chip any carbide on the teeth.

[DJ’s Timber]

Looks like a staple

[nt900]

Yes it does, I threw out the waste so can't dig it out, but the staple was wide enough for a 2.6mm kerf and leave metal on either side of the cut. Still, what the hell were they thinking of and why would they need to staple it together. This door cost less than the blade it is not helping to maintain in good order. Cheap door production process I guess.

Vented now, calming down..... aahhhhh.

[pawnhead]

It's standard practice with cheap vacuum formed, and ready-coat doors. If you want to trim more than 5mm off them, then put an old blade in your saw first.

edit: - There's probably not a lot holding it together now either (depending on how much you've cut off it). If you're using it in a bathroom, then I'd re edge it so it doesn't open up after a while.

[nt900]

Thanks John - I have always cut solid wood or 30+ year old hollow core doors that this has never come up. Fortunately this one was not for the bathroom, but a bedroom. I did a rudimentary strength test on the staple end (looked at it and swore, tilted my head at it - then painted it) prior to hanging it. It was three in the morning and all I could emotionally manage.