Portable table saws are ideal for use on a job site. These small, table-top or contractor's table saws are often light enough to carry, or are equipped with a mobile saw-stand. The problem with smaller table saws -- when compared to a cabinet-sized table saw -- is that the saw's outfeed table is also small. This makes cutting large sheets of plywood difficult. To address the problem, you can build a table-saw outfeed table to help support large pieces of stock.
Place the four, 33-inch boards on edge parallel to one another on a flat work table. The two, outside boards should be 30 inches apart. The two remaining boards in the center should be equally spaced.
Position the two, 30-inch boards on edge, perpendicular to the ends of the four boards you placed on the table. Connect the boards with a pair of 2 1/2-inch deck screws through each joint. Use a power drill.
Place the plywood over the completed frame. Attach the plywood to the frame with four, 1 1/2-inch deck screws.
Measure the distance from the top of the saw-table to the floor, and subtract 1/2-inch from that measurement. Cut each of the four remaining boards to this length. These boards will serve as legs for the outfeed table.
Flip the frame upside-down. Position one of the four remaining boards vertically in one corner of the frame. Check to see that the board is square to the frame with a framing square. Attach the board to the frame with three, 2 1/2-inch deck screws. Repeat the process for the other three legs.
Turn the table over, and place it at the back of the saw-table. The completed outfeed table will help support long pieces of wood as they are being cut by the table saw.
For additional support, build a second outfeed table. Place it to the left of the table saw for supporting wide sheets of plywood.
Always wear safety glasses when working with power tools.