The following instructions will help you select the proper
size Bilco ® steel sided door for your home. You may want
to print this page to use as a worksheet.
STEP 1: Measure your areaway foundation:
Disregard your old door and measure
(in inches) the dimensions of the existing areaway foundation.
Measure dimension W1, the inside
width,
and dimension W2, the outside width of the areaway foundation walls.
Measure dimension L1, the inside
length, and dimension L2, the outside length of the areaway
foundation walls.
Measure dimension H1, the height from
the top of the areaway foundation to the top of the opening in the
house foundation.
STEP 2: Record your foundation dimensions in the boxes shown:
Please enter all dimensions in inches
and fractions in decimal format (example: 43¼ should be
entered as 43.25)