and one or more fins 106 108 110 and 112 are included for sealing the joint 122 as illustrated in fig1 through 2 and 6 through 8 in some embodiments the temporary floor joint filler 100 may be constructed from a flexible and possibly reusable material such as rubber it is contemplated that any type of rubber may be employed for temporary floor joint filler 100 in one specific embodiment an american society for testing and materials astm rubber with a shore a hardness of a range 20 100 may be utilized for example the temporary floor joint filler 100 may be constructed from a material selected to provide flexibility for inserting the temporary floor joint filler 100 into a pre cut concrete joint 122 while still providing adequate strength for supporting concrete further it will be appreciated that certain materials may be selected according to other design considerations including reusability and or disposability for instance in one embodiment silicon and or another non stick material may be selected for reusability while in another embodiment a biodegradable material may be selected for disposability referring now to fig3 through 5 a temporary floor joint filler 100 is described in accordance with the present invention for example in one embodiment a temporary floor joint filler 100 may include a cap 102 and one or more fins 124 and 126 oriented at an angle from a base member 104 for securing temporary floor joint filler 100 into a joint 122 as illustrated in fig3 and 6 through 8 in another embodiment a temporary floor joint filler 100 may include a cap 102 and one or more ridged fins 128 and 130 coupled to the base member 104 for securing temporary floor joint filler 100 into a.