Calvert USA, Attic stairs

Wooden folding attic stairs specifications

Model No. No. of Steps (A) Floor to Ceiling (C D) Rough Opening Size (B) Swing Clearance (E) Landing Space Weight of the Unit Door Cover

1803 12 7' 2"- 9' 1" 22.5"x 44" 63" 50" 75 lbs White 1" Foam core

1804 12 7' 2"- 9' 1" 22.5"x 48" 63" 50" 75 lbs White 1" Foam core

1805 12 7' 8"- 10' 6" 22.5"x 52" 71" 57" 75 lbs White 1" Foam core

1015 12 7' 2"- 9' 1" 24"x 44" 63" 50" 75 lbs White 1" Foam core

1016 12 7' 2"- 9' 1" 28"x 44" 63" 50" 75 lbs White 1" Foam core

1017 12 7' 2"- 9' 1" 24"x 48" 63" 50" 75 lbs White 1" Foam core

1018 12 7' 2"- 9' 1" 28"x 48" 63" 50" 75 lbs White 1" Foam core

1025 12 7' 2"- 9' 1" 24"x 44" 63" 50" 75 lbs White 1.5" Foam core

1026 12 7' 2"- 9' 1" 28"x 44" 63" 50" 75 lbs White 1.5" Foam core

1027 12 7' 2"- 9' 1" 24"x 48" 63" 50" 75 lbs White 1.5" Foam core

1028 12 7' 2"- 9' 1" 28"x 48" 63" 50" 75 lbs White 1.5" Foam core

1035 12 7' 8"- 10' 6" 28"x 52" 71" 57" 80 lbs White 1.5" Foam core

F- Attic space required

F = 14" from ceiling up

L-Width of stair ladder

L = 16" ( 14" for 22.5" wide models)

Step size (Inside of the ladder)

14.5" (12.5") x 3-1/2"

Rise, distance, between steps

Cover door construction

1-1/2" (1")thick panel, 1-1/4" (3/4")polystyrene insulation, solid wood edging, 1/8" white MDF panels on both sides,

(D) - 11", rough opening length minus 11"

*Clear opening measurement indicates how big of a box can you get through the opening into the attic after the ladder is unfolded. For example item 1035 requires rough opening 28" x 52", the clear opening will be 23"( 28" -5") x 41" ( 52" - 11").