FOLLOW STEPS BELOW TO CHOOSE YOUR NEXT STAIRWAY:
1. Determine Rough Opening size
2. Determine
|
Model |
Model Code |
Stair Type |
Rough Opening |
Finished Clearance |
Clearance between Springs |
Ceiling Height |
Stile size* |
Tread Size* |
Landing space |
Clearance |
Load Rating |
| Windsor | BCT-83 |
Wood |
22 ½ x 48 |
20 ½ x 46 |
17" |
8' 5" |
1 x 4 |
1 x 4 x 13 5/8 |
56" |
62" |
250 |
| Windsor | BC-83 |
Wood |
25 ½ x 48 |
23 ½ x 46 |
20" |
8' 5" |
1 x 4 |
1 x 4 x 16 ½ |
56" |
62" |
250 |
| Windsor | BET-89 |
Wood |
22 ½ x 54 |
20 ½ x 52 |
17" |
8' 9" |
1 x 4 |
1 x 4 x 13 5/8 |
64" |
66" |
250 |
| Windsor | BET-100 |
Wood |
22 ½ x 54 |
20 ½ x 52 |
17" |
10' 4" |
1 x 4 |
1 x 4 x 13 5/8 |
66" |
79" |
250 |
| Windsor | BE-89 |
Wood |
25 ½ x 54 |
23 ½ x 52 |
20" |
8' 9" |
1 x 4 |
1 x 4 x 16 ½ |
64" |
66" |
250 |
| Windsor | BE-100 |
Wood |
25 ½ x 54 |
23 ½ x 52 |
20" |
10' 4" |
1 x 4 |
1 x 4 x 16 ½ |
66" |
79" |
250 |
Premium Wood Folding Attic Stairs
Model |
Model Code |
Stair Type |
Rough Opening |
Finished Clearance |
Clearance between Springs |
Ceiling Height |
Stile size* |
Tread Size* |
Landing space |
Clearance |
Load Rating |
| Premium | AET-89 |
Wood |
22 ½ x 54 |
20 ½ x 52 |
17" |
8' 9" |
1 x 6 |
1 x 6 x 13 5/8 |
61" |
70" |
350 |
| Premium | AET-100 |
Wood |
22 ½ x 54 |
20 ½ x 52 |
17" |
10' 3" |
1 x 6 |
1 x 6 x 13 5/8 |
70" |
80" |
350 |
| Premium | AE-89 |
Wood |
25 ½ x 54 |
23 ½ x 52 |
20" |
8' 9" |
1 x 6 |
1 x 6 x 16 ½ |
61" |
70" |
350 |
| Premium | AE-100 |
Wood |
25 ½ x 54 |
23 ½ x 52 |
20" |
10' 3" |
1 x 6 |
1 x 6 x 16 ½ |
70" |
80" |
350 |
| SpaceMaker | AG-89 |
Wood |
30 x 54 |
28 x 52 |
24 ½" |
8' 9" |
1 x 6 |
1 x 6 x 21 |
61" |
70" |
350 |
| SpaceMaker | AG-100 |
Wood |
30 x 54 |
28 x 52 |
24 ½" |
10' 3" |
1 x 6 |
1 x 6 x 21 |
70" |
80" |
350 |
| SpaceMaker | AG-89S |
Wood |
30 x 60 |
28 x 57 ¾ |
24 ½" |
8' 9" |
1 x 6 |
1 x 6 x 21 |
61" |
70" |
350 |
| SpaceMaker | AG-100S |
Wood |
30 x 60 |
28 x 57 ¾ |
24 ½" |
10' 3" |
1 x 6 |
1 x 6 x 21 |
70" |
80" |
350 |
Supreme Aluminum Folding Attic Stairs
Model |
Model Code |
Stair Type |
Rough Opening |
Finished Clearance |
Clearance between Springs |
Ceiling Height |
Stile size* |
Tread Size* |
Landing space |
Clearance |
Load Rating |
| Supreme | SAT-89 |
Aluminum |
22 ½ x 54 |
20 ½ x 52 |
17" |
8' 9" |
1 x 4** |
1 x 4 x 14 ½** |
68" |
70" |
350 |
| Supreme | SAT-100 |
Aluminum |
22 ½ x 54 |
20 ½ x 52 |
17" |
10' 4" |
1 x 4** |
1 x 4 x 14 ½** |
73" |
78" |
350 |
| Supreme | SA-89 |
Aluminum |
25 ½ x 54 |
23 ½ x 52 |
20" |
8' 9" |
1 x 4** |
1 x 4 x 17 ¼** |
68" |
70" |
350 |
| Supreme | SA-100 |
Aluminum |
25 ½ x 54 |
23 ½ x 52 |
20" |
10' 4" |
1 x 4** |
1 x 4 x 17 ¼** |
73" |
78" |
350 |
| Supreme | SAG-89 |
Aluminum |
30 x 54 |
28 x 52 |
24 ½" |
8' 9"
|
1 x 4** |
1 x 4 x 21** |
68" |
70" |
350 |
| Supreme | SAG-100 |
Aluminum |
30 x 54 |
28 x 52 |
24 ½" |
10' 4" |
1 x 4** |
1 x 4 x 21** |
73" |
78" |
350 |
| Supreme | SA-120 |
Aluminum |
25 ½ x 64 |
23 ½ x 62 |
20" |
12' |
1 x 4** |
1 x 4 x 17 ¼** |
84" |
87" |
350 |
| Supreme | SAT-120 |
Aluminum |
22 ½ x 64 |
20 ½ x 62 |
17" |
12' |
1 x 4** |
1 x 4 x 14 ½** |
84" |
87" |
350 |
| Supreme | SAG-120 |
Aluminum |
30 x 64 |
28 x 62 |
24 ½" |
12' |
1 x 4** |
1 x 4 x 21** |
84" |
87" |
350 |
*Nominal sizes before machining.
**Extruded aluminum, represents comparative sizing
