Irwin Seating Company manufactures a range of backs, seats, end panels, armrests, and more to provide choice and give a design team room to be creative.

Model Numbering:

That choice starts with the chair platform, which is the chair's center standard and the base upon which you create a chair. We offer both steel and cast iron center standards. Explore the options below to find the platform that's right for your project.

Fixed Seating Chair Platforms

No. 4 Steel Platform

No. 4 Steel Platform

Innovative steel standards that provide durability and flexibility

No. 8 Steel Platform

No. 8 Steel Platform

Traditional 1" x 3" vertical steel column with a formed foot makes the No. 8 standard ideal for historic venues....

American Stadium

American Stadium

THE standard for outdoor sporting venues in North America....

No. 54 Cast Iron Platform

No. 54 Cast Iron Platform

Cast iron chair platform designed for outdoor stadium club and suite areas

No. 12 Cast Iron Platform

No. 12 Cast Iron Platform

Cast iron chair platform for use with most back and seat components....

No. 17 Steel Platform

No. 17 Steel Platform

This chair platform is constructed from a traditional 1" x 3" steel column for use with the No. 17 gravity-lift, wood bottom seat

No. 30 Patriot Platform

No. 30 Patriot Platform

Stadium / arena type chair with steel standards....

Dimension

Dimension

A unique beam-mount chair system popular in lecture halls for it's space-saving design and great functionality....

No. 2 Rocker Platform

No. 2 Rocker Platform

Smooth, reliable rocking chair platform popular in movie theaters and suites

No. 84 Rocker Platform

No. 84 Rocker Platform

Smooth and reliable rocker platform that features an extra large fixed seat and flip-up armrests.

Spectrum Recliner

Spectrum Recliner

The most comfortable recliners available for commercial cinemas...

Spectrum Lounger Rocking Chair

Spectrum Lounger Rocking Chair

Smooth and reliable rocker platform that features an extra large fixed seat and flip-up armrests.

No. 43 Armless Chair Platform

No. 43 Armless Chair Platform

Chair platform designed without intermediate armrests

No. 44 Flip-Up Arm Chair Platform

No. 44 Flip-Up Arm Chair Platform

Chair platform that is designed with center standards that flip-up to nest between the backs to provide additional room....

No. 70 Tablet Arm Chair

No. 70 Tablet Arm Chair

Floor and riser mount standards are formed with 1" x 3", 11 gauge steel. The horizontal beam option is constructed from 1-1/2" x 2", 11 gauge steel. The fixed writing tablets are formed to provide for...

No. 71 Tablet Arm Chair

No. 71 Tablet Arm Chair

Floor and riser mount standards are formed with 1" x 3", 11 gauge steel. The horizontal beam option is constructed from 1-1/2" x 2", 11 gauge steel. The folding writing tablets are high pressure plast...

Custom

Custom

Irwin Seating Company has the most extensive product line of any manufacturer in the industry. Do the math on our component-based system, and you will find over 15,000 possible chair combinations – a...

Chair Restoration

Chair Restoration

Chair restoration can help revive the original beauty and nostalgic appeal an auditorium or theatre may have. In addition, restoration is a great way to practice environmental stewardship. With more t...