Joist were typically planed smooth (wrought) and sometimes chamfered or beaded. Joists may join to their supporting beams in many ways: joists resting on top of the supporting beams are said to be "lodged"; dropped in using a butt cog joint (a type of lap joint), half-dovetail butt cog, or a half-dovetail lap joint. Joists may also be tenoned in during the raising with a soffit tenon or a tusk tenon (possibly with a housing). Joists can also be joined by being slipped into mortises after the beams are in place such as a chase mortise (pulley mortise), L-mortise, or "short
Dovetail rail where not fit for purpose according to the MOD to make space for ACOG sighting system. "Dovetail mount" can also refer to a dovetail track running perpendicular to the bore, often used for smaller front sights posts and rear sights blades found on handguns and some rifles. This mounting method is meant as a semi-permanent friction fit mounting solution where a slot is milled, for instance in the slide of a pistol, and a sight with a corresponding dovetail is punched or drifted into that slot. Rear sights are offered in many dovetail cut profiles which are non-compatible, and some