A company produces doors. The following information was gathered to prepare budgets for the upcoming year beginning January1:

sales forecast in units................................... 5,500

doors finished goods inventory,Jan1.......................   620

doors target finished goods inventory,Dec1.............  480

doors raw materials inventory-steel, Jan1................ 40,000lbs

targetinventory-steel,Dec1..........................   80,000lbs

raw materialsinventory-glass,Jan1..................   6,000 squarefeet

targetinventory-glass, Dec1............................   4,000square feet

budgeted purchase price-steel......................... $4 perlb

budgeted purchase price-glass.........................$2 persquare foot

The manufacture of each door requires 20 lbs of steel and 6 square feet of glass.

Prepare the production schedule in units for the company.