4100 - Extra-Heavy Duty Aluminum Single Ladder, Box Section

4100 - Extra-Heavy Duty Aluminum Single Ladder, Box Section

Standard: CSA Grade 1A/ANSI A14.2

Aluminum single ladder with box section side rails: maximum rigidity and durability for professional exterior work.

Select your reference
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4100 - Extra-Heavy Duty Aluminum Single Ladder, Box Section

Advantages and strengths

Aluminum single ladder. Duty rating 300 lbs (136 kg), meets or exceeds CSA Grade 1A and ANSI Type 1A standards. Rigid box section side rails. Slip-resistant serrated round rungs. Heavy-duty ribbed swivel feet with ice pick. Impact-resistant non-marring yellow ABS end caps. 8 sizes, 2.44 m to 7.32 m (8 to 24 feet).

Technical characteristics

Reference characteristic.CANADA_MODELE characteristic.CANADA_LARGEUR_TOTALE characteristic.CANADA_LARGEUR_PASSAGE characteristic.CANADA_HAUTEUR_PORTEE characteristic.CANADA_POIDS Quantity Quote
Ref. 4108
Aluminum single ladder 4108
8 ft (2.44 m) 14 5/8 in (37.2 cm) 12 7/8 in (32.7 cm) 11 ft 1 in (3.38 m) 13.3 lbs (6.0 kg) lb
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Ref. 4110
Aluminum single ladder 4110
10 ft (3.05 m) 14 5/8 in (37.2 cm) 12 7/8 in (32.7 cm) 13 ft 0 in (3.96 m) 16.3 lbs (7.4 kg) lb
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Ref. 4112
Aluminum single ladder 4112
12 ft (3.66 m) 14 5/8 in (37.2 cm) 12 7/8 in (32.7 cm) 15 ft 0 in (4.57 m) 19.4 lbs (8.8 kg) lb
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Ref. 4114
Aluminum single ladder 4114
14 ft (4.27 m) 14 5/8 in (37.2 cm) 12 7/8 in (32.7 cm) 16 ft 11 in (5.16 m) 22.4 lbs (10.2 kg) lb
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Ref. 4116
Aluminum single ladder 4116
16 ft (4.88 m) 15 7/8 in (40.3 cm) 13 7/8 in (35.2 cm) 18 ft 10 in (5.74 m) 30.3 lbs (13.7 kg) lb
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Ref. 4118
Aluminum single ladder 4118
18 ft (5.49 m) 15 7/8 in (40.3 cm) 13 7/8 in (35.2 cm) 20 ft 9 in (6.32 m) 33.3 lbs (15.1 kg) lb
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Ref. 4120
Aluminum single ladder 4120
20 ft (6.10 m) 15 7/8 in (40.3 cm) 13 7/8 in (35.2 cm) 22 ft 8 in (6.91 m) 38.6 lbs (17.5 kg) lb
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Ref. 4124
Aluminum single ladder 4124
24 ft (7.32 m) 15 7/8 in (40.3 cm) 13 7/8 in (35.2 cm) 26 ft 7 in (8.10 m) 44.5 lbs (20.2 kg) lb
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Aluminum single ladder 4108
Reference : 4108
characteristic.CANADA_MODELE 8 ft (2.44 m)
characteristic.CANADA_LARGEUR_TOTALE 14 5/8 in (37.2 cm)
characteristic.CANADA_LARGEUR_PASSAGE 12 7/8 in (32.7 cm)
characteristic.CANADA_HAUTEUR_PORTEE 11 ft 1 in (3.38 m)
characteristic.CANADA_POIDS 13.3 lbs (6.0 kg) lb
Quantity :
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Aluminum single ladder 4110
Reference : 4110
characteristic.CANADA_MODELE 10 ft (3.05 m)
characteristic.CANADA_LARGEUR_TOTALE 14 5/8 in (37.2 cm)
characteristic.CANADA_LARGEUR_PASSAGE 12 7/8 in (32.7 cm)
characteristic.CANADA_HAUTEUR_PORTEE 13 ft 0 in (3.96 m)
characteristic.CANADA_POIDS 16.3 lbs (7.4 kg) lb
Quantity :
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Aluminum single ladder 4112
Reference : 4112
characteristic.CANADA_MODELE 12 ft (3.66 m)
characteristic.CANADA_LARGEUR_TOTALE 14 5/8 in (37.2 cm)
characteristic.CANADA_LARGEUR_PASSAGE 12 7/8 in (32.7 cm)
characteristic.CANADA_HAUTEUR_PORTEE 15 ft 0 in (4.57 m)
characteristic.CANADA_POIDS 19.4 lbs (8.8 kg) lb
Quantity :
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Aluminum single ladder 4114
Reference : 4114
characteristic.CANADA_MODELE 14 ft (4.27 m)
characteristic.CANADA_LARGEUR_TOTALE 14 5/8 in (37.2 cm)
characteristic.CANADA_LARGEUR_PASSAGE 12 7/8 in (32.7 cm)
characteristic.CANADA_HAUTEUR_PORTEE 16 ft 11 in (5.16 m)
characteristic.CANADA_POIDS 22.4 lbs (10.2 kg) lb
Quantity :
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Aluminum single ladder 4116
Reference : 4116
characteristic.CANADA_MODELE 16 ft (4.88 m)
characteristic.CANADA_LARGEUR_TOTALE 15 7/8 in (40.3 cm)
characteristic.CANADA_LARGEUR_PASSAGE 13 7/8 in (35.2 cm)
characteristic.CANADA_HAUTEUR_PORTEE 18 ft 10 in (5.74 m)
characteristic.CANADA_POIDS 30.3 lbs (13.7 kg) lb
Quantity :
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Aluminum single ladder 4118
Reference : 4118
characteristic.CANADA_MODELE 18 ft (5.49 m)
characteristic.CANADA_LARGEUR_TOTALE 15 7/8 in (40.3 cm)
characteristic.CANADA_LARGEUR_PASSAGE 13 7/8 in (35.2 cm)
characteristic.CANADA_HAUTEUR_PORTEE 20 ft 9 in (6.32 m)
characteristic.CANADA_POIDS 33.3 lbs (15.1 kg) lb
Quantity :
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Aluminum single ladder 4120
Reference : 4120
characteristic.CANADA_MODELE 20 ft (6.10 m)
characteristic.CANADA_LARGEUR_TOTALE 15 7/8 in (40.3 cm)
characteristic.CANADA_LARGEUR_PASSAGE 13 7/8 in (35.2 cm)
characteristic.CANADA_HAUTEUR_PORTEE 22 ft 8 in (6.91 m)
characteristic.CANADA_POIDS 38.6 lbs (17.5 kg) lb
Quantity :
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Aluminum single ladder 4124
Reference : 4124
characteristic.CANADA_MODELE 24 ft (7.32 m)
characteristic.CANADA_LARGEUR_TOTALE 15 7/8 in (40.3 cm)
characteristic.CANADA_LARGEUR_PASSAGE 13 7/8 in (35.2 cm)
characteristic.CANADA_HAUTEUR_PORTEE 26 ft 7 in (8.10 m)
characteristic.CANADA_POIDS 44.5 lbs (20.2 kg) lb
Quantity :
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Use

The Featherlite 4100 series single ladder is the reference aluminum straight ladder for construction contractors, painters, roofers, and building maintenance teams who need reliable equipment to access facades, gutters, and pitched rooftops.

Box Section: a Real Structural Difference

The closed box section profile of the 4100 series side rails offers greater bending and torsion resistance than an I-beam or C-channel profile at equal weight. On a long ladder (16 to 24 feet), this increased rigidity reduces rail flex under load and improves lateral stability, which is especially important during extended work where the user must lean to reach surfaces.

Rungs and Feet Built for the Jobsite

The serrated round aluminum rungs provide an ergonomic, slip-resistant footing even in rigid-soled work boots. The heavy-duty ribbed swivel feet automatically orient to maintain flat ground contact regardless of the ladder's angle, and the integrated ice pick provides anchorage on soft or icy surfaces.

Proper Setup and Installation

In accordance with CSA and ANSI standards, the ladder must be set up at a 75.5° angle (4:1 ratio: for every 4 ft of supported height, the base should be 1 ft from the wall). The highest permitted standing level is 4 rungs below the top. The ladder should always be secured at its upper contact point for extended work.

Electrical Warning

Aluminum is an electrical conductor. This ladder must never be used near overhead power lines, electrical panels, or any energized equipment. For electrical work environments, use only a non-conductive fiberglass ladder.

Compliance Information

Duty rating: 300 lbs (136 kg) including the user, tools, and equipment. Meets or exceeds CSA Grade 1A and ANSI Type 1A standards. Available in 8 sizes from 2.44 m to 7.32 m (8 to 24 feet).

Technical description

Rigid box section side rails: higher bending resistance and durability than I-beam or C-channel design


Slip-resistant serrated round aluminum rungs: reliable grip in all conditions


Heavy-duty ribbed swivel feet with ice pick: grip on hard or soft surfaces


Impact-resistant non-marring yellow ABS end caps: protects rails and contact surface


Lightweight aluminum construction: optimized strength-to-weight ratio for jobsite handling


Inside width 12 7/8 to 13 7/8 in: comfortable climbing space in work boots


Duty rating: 300 lbs (136 kg)


Meets or exceeds CSA Grade 1A and ANSI Type 1A standards


8 sizes available: 2.44 m to 7.32 m (8 to 24 feet)


WARNING: Aluminum conducts electricity. Do not use near energized electrical lines or equipment