Which is better for roof work?

The Jupiter, because it ships with two roof hooks that turn it into a roof ladder. The Werner has no hooks, so you would need a separate roof ladder or hook kit.

Which feels steadier to climb?

The Werner. Its 12-inch rung spacing and 20 rungs give a more even climb than the Jupiter's 15-inch spacing and 13 rungs.

Which holds more weight?

The Jupiter is rated to 330 lb against the Werner's 250 lb. Check your weight plus tools and paint before choosing.

Is the Werner worth stepping up to?

Yes for regular use at height. The Type I duty rating and closer rung spacing matter more than the Jupiter's extra load rating and hooks for most household jobs.

Which is easier to store?

Both collapse to a compact bundle. The Jupiter folds to about 3.6 ft and weighs about 36 lb, slightly less than the Werner's 38 lb.

Jupiter 20 ft Telescoping Extension Ladder vs Werner 20 ft. Aluminum Telescoping Extension Ladder Type I

The Werner is the safer ladder for anyone working at height. It is a Type I duty-rated telescoping ladder with 20 rungs at 12-inch spacing, a 250 lb load limit and a 13 ft maximum standing height. The Jupiter reaches a claimed 20 ft with 13 rungs at 15-inch spacing, adds roof hooks and carries a higher 330 lb rating, but it has only 27 ratings at 4 out of 5 and no US duty rating. Buy the Werner for regular trade or household use; buy the Jupiter only if you need the roof hooks and the taller reach.

Choose the Jupiter if you need roof hooks to convert it into a roof ladder and want the taller reach and higher load rating.
Choose the Werner if you want a Type I duty-rated ladder from a brand with a long track record in ladders.

Prices

Jupiter 20 ft Telescoping Extension Ladder: $146.94 at Walmart (last seen Nov 9)
Werner 20 ft. Aluminum Telescoping Extension Ladder Type I: $419.00 at The Home Depot (last seen Nov 9)
Difference: the Jupiter 20 ft Telescoping Extension Ladder is $272.06 cheaper than the Werner 20 ft. Aluminum Telescoping Extension Ladder Type I at the latest prices (Nov 9)

	Jupiter 20 ft Telescoping Extension Ladder	Werner 20 ft. Aluminum Telescoping Extension Ladder Type I
Duty rating	EN131 approved, no US duty type stated	Type I duty rating
Load capacity	330 lb	250 lb
Rung spacing	15 in	12 in
Number of rungs	13	20
Max standing height	Not stated; 20 ft extended reach	13 ft standing, 20 ft reach
Roof hooks	Two hooks included, fit pipes under 7 cm	Not included
Weight	About 36 lb	38 lb
Owner feedback	4 out of 5 from 27 ratings	Established ladder brand, widely reviewed

Spec	Jupiter 20 ft Telescoping Extension Ladder	Werner 20 ft. Aluminum Telescoping Extension Ladder Type I
size	20'	—
color	Silver	—
Frame Material	—	Aluminum
Overall Height	—	20 ft
Load Capacity	—	250 lb
Weight	—	38 lb
Material	—	Aluminum
Max Standing Height	—	13 ft
Max Reach Height	—	20 ft
Extended Height	—	17 ft
Retracted Height	—	10 ft
Number of Sections	—	2

Spec	Jupiter 20 ft Telescoping Extension Ladder	Werner 20 ft. Aluminum Telescoping Extension Ladder Type I
Number of Rungs	—	20
Rung Spacing	—	12 in
Base Width	—	20.8 in

Jupiter 20 ft Telescoping Extension Ladder vs Werner 20 ft. Aluminum Telescoping Extension Ladder Type I

Prices

Jupiter 20 ft Telescoping Extension Ladder vs Werner 20 ft. Aluminum Telescoping Extension Ladder Type I

Prices

Jupiter 20 ft Telescoping Extension Ladder

Werner 20 ft. Aluminum Telescoping Extension Ladder Type I

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Price history

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Jupiter 20 ft Telescoping Extension Ladder

Werner 20 ft. Aluminum Telescoping Extension Ladder Type I

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Jupiter 20 ft Telescoping Extension Ladder

Werner 20 ft. Aluminum Telescoping Extension Ladder Type I

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