Combination doors
                 by T.M.Cobb

Cobb manufacturers the Tyco Combination Unit . Each unit has been tested for air and water infiltration and meet or exceed Cobb standards of excellence.The Flush Combination Units can be ordered in Red Oak, Birch, Mahogany or Hardboard Doors. Flush combination unit is a single hung vent.
Large venting double hung sash, found on the Tyco Flat Panel and Raised Panel Doors, makes for one of the finest units on the market. Available in both 1 3/8 and 1 3/4 thick and a variety of widths.