Life (dwelling-house) / 10 years (other)
Indictable offence. Breaking and entering a dwelling-house carries life imprisonment: serious criminality under IRPA s.36(1). Even for non-dwelling premises, the 10-year maximum constitutes serious criminality.
Getting into a place without permission to commit a crime inside, or committing one once inside. If it was somebody's home the ceiling is life, and for any other building it is 10 years. Both figures sit at or above the serious criminality line, so the type of building changes the sentence but not the border outcome.
(1) Every one who (a) breaks and enters a place with intent to commit an indictable offence therein, (b) breaks and enters a place and commits an indictable offence therein, or (c) breaks out of a place after (i) committing an indictable offence therein, or (ii) entering the place with intent to commit an indictable offence therein, is guilty (d) if the offence is committed in relation to a dwelling-house, of an indictable offence and liable to imprisonment for life, and (e) if the offence is committed in relation to a place other than a dwelling-house, of an indictable offence and liable to imprisonment for a term not exceeding ten years or of an offence punishable on summary conviction. (2) For the purposes of proceedings under this section, evidence that an accused (a) broke and entered a place or attempted to break and enter a place is, in the absence of evidence to the contrary, proof that he broke and entered the place or attempted to do so, as the case may be, with intent to commit an indictable offence therein; or (b) broke out of a place is, in the absence of any evidence to the contrary, proof that he broke out after (i) committing an indictable offence therein, or (ii) entering with intent to commit an indictable offence therein. (3) For the purposes of this section and section 351, place means (a) a dwelling-house; (b) a building or structure or any part thereof, other than a dwelling-house; (c) a railway vehicle, a vessel, an aircraft or a trailer; or (d) a pen or an enclosure in which fur-bearing animals are kept in captivity for breeding or commercial purposes.