SloightlyOnTheHuh OP t1_j1u62cv wrote on December 27, 2022 at 12:32 PM

Reply to comment by oOorolo in fitting bifold doors. Advice needed on aperture width. by SloightlyOnTheHuh

Cool, so if I frame the rough aperture fairly square can I slim down that 5 mm each side because I know I'll have removed most of the error in the outer framing? I'll only have minimal tweaking to do I hope.

oOorolo t1_j1u6vz9 wrote on December 27, 2022 at 12:41 PM

You can, but the idea of having a minimum 1/4 inch or 5mm is pretty standard practice, so you can insert 2 wedge shims, one per side to square your frame. Leaving a smaller gap leaves less room for shims and my result in a twisted frame if only 1 shim can be inserted.

SloightlyOnTheHuh OP t1_j1u6ydo wrote on December 27, 2022 at 12:42 PM

Thanks. That's a big help.