A temporary floor joint filler may include a base member having a cross-sectional profile including a first set of opposing sides and a second set of opposing sides, a cap coupled to the base member, a first fin coupled with a first side of the second set of opposing sides of the base member, and/or a second fin coupled with a second side of the second set of opposing sides of the base member. The base member may be configured for insertion into a floor joint, the first fin and the second fin may be configured for retaining the base member in the floor joint, and the cap may be configured for covering the floor joint.