Smirthwaite Combi Chair

About The Combi Chair

It comes in four sizes. Maximum user weight runs from 77 lb on size 1 to 143 lb on size 4, and seat height adjusts from 8.5-11.4 in on the smallest size up to 13.4-17.7 in on the largest. Seat depth adjusts too, and the armrests are height adjustable; Smirthwaite notes they can be lowered to make a side transfer into the seat easier. The potty lifts out once a child is ready for the commode seat.

The chair arrives fully assembled with the potty, plastic commode seat, upholstered seat and pelvic strap. Smirthwaite covers materials and workmanship for 2 years from the date it is delivered.

Specifications

Seat height

8.5-11.4 in (size 1), 10.8-14.8 in (size 2), 11.8-15.7 in (size 3), 13.4-17.7 in (size 4)

Seat width

11.4 in (size 1), 12.8 in (size 2), 14.4 in (size 3), 17.1 in (size 4)

Seat depth

8.1-11.4 in (size 1), 9.6-14 in (size 2), 12.2-15.2 in (size 3), 13.8-17.3 in (size 4)

Back height

12.8 in (size 1), 14.6 in (size 2), 15.7 in (size 3), 19.7 in (size 4)

Max user weight

77 lb (size 1), 99 lb (size 2), 121 lb (size 3), 143 lb (size 4)

Product weight

24 lb (size 1), 29 lb (size 2), 31 lb (size 3), 33 lb (size 4)

Armrests

height adjustable

In The Box

• Potty
• Plastic commode seat
• Upholstered seat
• Velcro pelvic strap

Warranty

• Materials and workmanship: 2 years from date of delivery
• Excludes accident, neglect, misuse, not following the instructions and normal wear and tear
• Not following the instructions may invalidate the warranty
• Claims: contact Smirthwaite Customer Services, who advise on next steps

Specifications and warranty terms are from the maker: smirthwaite.com, smirthwaite.com, smirthwaite.com. Checked October 13, 2026.