Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame vs Steelcase Series 2 Office Chair, Graphite, Light Frame
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame
Buyers who want four-way arms, adjustable lumbar and a seat-depth slide on carpet
Series 1 in Graphite 3D Microknit on the light Seagull frame, with a three-setting back dial, seat-depth slide, lumbar and four-way arms. The listing names carpet casters but also says hard floor. Steelcase gives 400 pounds where the older guide says 300, and the consumer warranty depends on buying from an authorised retailer.
Published specifications
- Listing part number 435A00-5T29-5S25-6053-4ARM-LUM-CC; UPC 724274002316
- Maker page: 5T29 = Graphite 3D Microknit back; 6053 = Seagull colour scheme
- Guide: seat height, seat depth, three-setting back dial, lumbar, four-way arms
- Listing: 23.75 D x 27 W x 41.25 H in, 29 lb, seat depth 18.5 in
- Load: 300 lb in the 2017 guide and listing; 400 lb on the current maker page
- Maker page: 12-year multi-shift warranty; retail buyers fall under a separate consumer warranty
Strengths
- The part number decodes against Steelcase's own published colour codes
- Three-setting back dial with an upright lock and a boost for more tension
- Arms move in height, width, pivot and depth, and the seat slides for depth
Caveats
- Listing says carpet casters in the title and hard floor in its table
- Weight rating is 300 lb in the guide and listing but 400 lb on the maker page
- Warranty depends on buying from a seller Steelcase counts as authorised
Read the full Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame guide
Steelcase Series 2 Office Chair, Graphite, Light Frame
Buyers who want four-way arms, a seat-depth slide and a 400 lb rating
Series 2 in Graphite on a light frame, with a three-setting comfort dial, seat-depth slide and four-way arms. Steelcase warrants it to 400 pounds. The listing says both carpet and hard-floor casters, and Steelcase limits its sliding lumbar to upholstered and 3D Microknit backs, so confirm both before ordering.
Published specifications
- Listing part number 436AIR3D-6295-5T29-5S25-7243-4ARM-LUM-HF; UPC 724274002286
- Maker: seat height, seat depth, three-setting comfort dial, 4D arms
- Maker: height-adjustable lumbar on upholstered and 3D Microknit backs
- Listing: 22 D x 27 W x 42.5 H in, 36 lb, seat depth 17.75 in
- Maker and listing: weight tested and warranted to 400 lb
- Maker: 12-year 24/7 multi-shift warranty; retail buyers fall under a consumer warranty
Strengths
- Steelcase and the listing agree on a 400 lb rating
- Three-setting comfort dial plus arms that move in height, width, depth and pivot
- Back upholstery can be replaced without replacing the back frame
Caveats
- Listing calls the casters carpet and hard floor in different fields
- Sliding lumbar is limited to some back types, and this unit's back type is unconfirmed
- Warranty depends on buying from a seller Steelcase counts as authorised
Read the full Steelcase Series 2 Office Chair, Graphite, Light Frame guide
How to choose between them
Choose the Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame if your situation matches: Buyers who want four-way arms, adjustable lumbar and a seat-depth slide on carpet. Its main caveat: Listing says carpet casters in the title and hard floor in its table.
Choose the Steelcase Series 2 Office Chair, Graphite, Light Frame if your situation matches: Buyers who want four-way arms, a seat-depth slide and a 400 lb rating. Its main caveat: Listing calls the casters carpet and hard floor in different fields.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Steelcase Series 1 product page with options, colour codes and load rating Source for Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame
- Steelcase Series 1 user guide, part 1068390001 Rev. B (maker PDF) Source for Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame
- Steelcase Limited Lifetime Warranty for the Americas, updated June 2026 Source for Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame and Steelcase Series 2 Office Chair, Graphite, Light Frame
- Steelcase store FAQs, including the consumer warranty answer Source for Steelcase Series 1 Office Chair, Graphite knit back, Seagull frame and Steelcase Series 2 Office Chair, Graphite, Light Frame
- Steelcase Series 2 product page Source for Steelcase Series 2 Office Chair, Graphite, Light Frame
- Steelcase Series 2 hang tag, served as the Series 2 user guide (maker PDF) Source for Steelcase Series 2 Office Chair, Graphite, Light Frame
Primary sources checked .