JDLIM

I recently got my BTO flat and i’d opted out the HDB Living room and bedroom tiles. As we know HDB BTO kitchen tiles are not able to opt out , I recently found out that if I lay my Living Room and Bedroom tiles using the height level of my HDB BTO Kitchen tiles, my main door and bedroom doors will be unable to open because the door height will be longer of about 0.5-1cm which need to be trim-off to make it shorter . Is this a defect from HDB Main contractor?