0286 Column Crushing - Floors - Columns -

Image Text: Floor joist > built-up beam > wood shims are often used at the top of columns > these may be cedar wedges (weaker wood and small bearing surfaces) that are particularly prone to crushing > wedges between column and beam mean that the beam is not well connected to the column > concrete block column > footing > concrete floor slab > gravel > floor joist > built-up beam > wood column > footing > concrete floor slab > gravel > with wooden columns, check for crushing at both the top AND the bottom > if there is crushing at the bottom, rot may be involved