Cushion Thickness and Seat Height
Two of the three seating sets publish a cushion thickness - 5 in on the aluminum sectional, 4 in on the fire-pit set - and the replacement cushions are also 4 in thick. None of the three sets, and none of the seven seating products in this catalogue, publishes a separate "seat height" figure, so this site can state cushion thickness but not the finished sitting height.
What's published, product by product
The 5-piece aluminum sectional states 5 in thick cushions with a high-density sponge fill, per its own feature text. The 7-piece set with a fire pit table states 4 in thick cushions, filled with "28D high-density sponge" according to its listing. The 7-piece navy sectional's own feature text mentions "thick" cushions without a number. None of the four standalone chairs is cushioned in the same sense - the swivel-rocker and stackable chairs use a textilene sling seat, not a fitted foam cushion.
Why thickness isn't the same as seat height
A thicker cushion sits on top of a frame's own seat pan, so it raises the effective sitting height by roughly its own thickness once compressed - but by how much depends on the frame's own seat-pan height, which no listing in this catalogue publishes as a separate figure. This site can compare the cushions to each other (5 in vs. 4 in) but cannot state a finished, ground-to-seat-surface height for any product.
The replacement cushions, for comparison
Both replacement-cushion sets are also 4 in thick, per their own feature text - the same stated thickness as the fire-pit set's built-in cushions, and 1 in thinner than the aluminum set's. Thickness alone doesn't confirm either replacement cushion fits a specific chair - see how to match replacement cushions to your seat for why.
Questions
Which Amopatio seating set has the thickest cushions?
The 5-piece aluminum sectional, at 5 in, per its own feature text - the thickest published figure in this catalogue.
Does a thicker cushion mean I'll sit higher?
Generally yes, but this site can't state by how much - that also depends on the frame's own seat-pan height, which isn't published for any product here.
Do the swivel-rocker and stackable chairs have cushions?
No - they use a textilene sling seat, per their own feature text, not a fitted foam cushion like the three seating sets.