Full Product Manual

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Areaway — Sloped Masonry

Type BR Sloped Wall Door

1. Discard your old door and measure the dimensions of the

areaway foundation as shown.

2. Measure dimension W1, the inside width, and W2, the

outside width of the foundation sloped sidewalls.

Walls may not be uniformly spaced, so check at

several points for the narrowest dimension.

3. Measure dimension L1, the inside length, and L2, the

outside length of the areaway foundation.

4. Select a door width that is at least 4” wider than W1 and

no wider than W2. (Note: BILCO foundation plates are

available to reduce the width of your foundation opening.

See page 7 for more information).

5. Select a door length that is at least 2” longer than L1 and

no longer than L2. (Note: BILCO extension panels are

available to increase the length of the basement door.

See below for more information).

Width

W1 = _____ W2 = _____

Length

L1 = _____ L2 = _____

Record your foundation dimensions here

* Extension panels must overlap the door’s head panel by at least 1”.

Extensions are available to increase the door length in 6”, 12”,

and 18” sizes. Two or more extensions can be overlapped to make

longer extensions. Note: Extension panels must overlap the door’s

header panel by a least 1”. Refer to table above for door lengths

with extension panels.

Extension

Model

BR-1 43-3/16” 65-1/8” 70-1/8” 76-1/8” 82-1/8”

BR-2 47-3/16” 67-5/8” 72-5/8” 78-5/8” 84-5/8”

BR-3 51-3/16” 74-1/2” 79-1/2” 85-1/2” 91-1/2”

Door Width

Door Length

With Extensions*

Standard

6” Panel 12” Panel 18” Panel

Sloped Wall Basement Door Dimensions