Activity Chair

The ultimate in active seating for pediatric to adult clients

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Sizes & Dimensions

Use the dimensions chart below to help you make the right choice for your client.

Want to make sure it fits? Download a detailed chair sizing worksheet.

Key user dimensions (inches)

Activity Chair sizing

The user’s overall height is a general guide to help you select the appropriate chair. Choose the model that allows for growth.

  • Rifton small standard base activity chair

    Small standard Activity Chair

    R820

    User’s overall height:

    32* – 48

    *28 – 38 requires mini kit

    Select View Dimensions
    Item Dimensions (inches)

    Frame width

    Short legs: 21

    Long legs: 23

    Short legs with casters: 22½

    Long legs with casters: 23½

    Frame depth (front to back)

    Short legs: 21½ – 23

    Long legs: 26¼ – 27¾

    Short legs with casters: 23½ – 25

    Long legs with casters: 27 – 28½

    Footboard knee angle (degrees)

    45° – 110°

    Seat height above floor

    Short legs: 9½ – 12½

    Long legs: 18½ – 21½

    Short legs with casters: 13½ – 16½

    Long legs with casters: 18½ – 21½

    Seat angle for tilt-in-space (degrees)

    15° forward, 15° back

    Backrest angle adjustment (degrees)

    5° forward, 20° back

    Seat height above footboard

    7 – 12

    Seat height above footboard with footboard lift

    6 – 9

    Seat width with hip guides

    7 – 9

    Seat width without hip guides

    12

    Seat depth (1" increments)

    8 – 12

    7 – 11 with mini kit

    Armrest height above seat

    5 – 7½

    Trunk support width

    5½ – 11½

    Backrest height above seat

    12½ – 15½

    Headrest height above seat

    14½ – 21

    Maximum working load (lbs)

    75
  • Rifton small hi low base activity chair

    Small hi/lo Activity Chair

    R830

    User’s overall height:

    28* – 48

    *28 – 32 requires mini kit

    Select View Dimensions
    Item Dimensions (inches)

    Frame width

    25

    Frame depth (front to back)

    31

    Seat height above floor

    10 – 25

    Footboard knee angle (degrees)

    45° – 110°

    Seat angle for tilt-in-space (degrees)

    15° forward, 25° back

    Seat height above footboard

    7 – 12

    Backrest angle adjustment (degrees)

    5° forward, 20° back

    Seat height above footboard

    9 – 12

    Seat height above footboard with footboard lift

    6 – 9

    Seat width with hip guides

    7 – 9

    Seat width without hip guides

    12

    Seat depth (1" increments)

    8 – 12

    7 – 11 with mini kit

    Armrest height above seat

    5 – 7½

    Trunk support width

    5½ – 11½

    Backrest height above seat

    12½ – 15½

    Headrest height above seat

    14½ – 21

    Maximum working load (lbs)

    75
  • Rifton medium standard base activity chair

    Medium standard Activity Chair

    R840

    User’s overall height:

    40 – 56

    Select View Dimensions
    Item Dimensions (inches)

    Frame width

    Short legs: 23¼

    Long legs: 24¼

    Short legs with casters: 24½

    Long legs with casters: 25½

    Frame depth (front to back)

    Short legs: 22½ – 24½

    Long legs: 26¾ – 28¼

    Short legs with casters: 25 – 27

    Long legs with casters: 26½ – 28¾

    Footboard knee angle (degrees)

    45° – 110°

    Seat height above floor

    Short legs: 12½ – 16½

    Long legs: 19 – 23

    Short legs with casters: 16 – 20

    Long legs with casters: 19 – 23

    Seat angle for tilt-in-space (degrees)

    15° forward, 15° back

    Seat height above footboard

    7¾ – 15¼

    Backrest angle adjustment (degrees)

    5° forward, 20° back

    Seat height above footboard with footboard lift

    8 – 12½

    Seat width with hip guides

    8½ – 11½

    Seat width without hip guides

    14

    Seat depth (1" increments)

    11 – 16

    Armrest height above seat

    7 – 10½

    Trunk support width

    6½ – 12

    Backrest height above seat

    15½ – 19

    Headrest height above seat

    17½ – 24½

    Maximum working load (lbs)

    150
  • Rifton medium hi low base activity chair

    Medium hi/lo Activity Chair

    R850

    User’s overall height:

    40 – 56

    Select View Dimensions
    Item Dimensions (inches)

    Frame width

    27½

    Frame depth (front to back)

    31

    Footboard knee angle (degrees)

    45° – 110°

    Seat height above floor

    12 – 23

    Seat angle for tilt-in-space (degrees)

    15° forward, 25° back

    Backrest angle adjustment (degrees)

    5° forward, 20° back

    Seat height above footboard

    7¾ – 15¼

    Seat height above footboard with footboard lift

    8 – 12½

    Seat width with hip guides

    8½ – 11½

    Seat width without hip guides

    14

    Seat depth (1" increments)

    11 – 16

    Armrest height above seat

    7 – 10½

    Trunk support width

    6½ – 12

    Backrest height above seat

    15½ – 19

    Headrest height above seat

    17½ – 24½

    Maximum working load (lbs)

    150
  • Rifton large standard base activity chair

    Large standard Activity Chair

    R860

    User’s overall height:

    50 – 74

    Select View Dimensions
    Item Dimensions (inches)

    Frame width

    Short legs: 26¼

    Long legs: 26¼

    Short legs with casters: 27¾

    Long legs with casters: 27¾

    Frame depth (front to back)

    Short legs: 30½ – 32¾

    Long legs: 32½ – 34½

    Short legs with casters: 31 – 33

    Long legs with casters: 34¾ – 35¼

    Footboard knee angle (degrees)

    45° – 110°

    Seat height above floor

    Short legs: 16½ – 20½

    Long legs: 20 – 24

    Short legs with casters: 16½ – 20½

    Long legs with casters: 20 – 24

    Seat angle for tilt-in-space (degrees)

    15° forward, 15° back

    Backrest angle adjustment (degrees)

    5° forward, 20° back

    Seat height above footboard

    11¼ – 21¼

    Seat height above footboard with footboard lift

    11 – 16

    Seat width with hip guides

    11 – 14

    Seat width without hip guides

    17

    Seat depth (1" increments)

    15 – 20

    Armrest height above seat

    7 – 10½

    Trunk support width

    9½ – 14

    Backrest height above seat

    19 – 24

    Headrest height above seat

    19½ – 29½

    Maximum working load (lbs)

    250
  • Rifton large hi low base activity chair

    Large hi/lo Activity Chair

    R870

    User’s overall height:

    50 – 74

    Select View Dimensions
    Item Dimensions (inches)

    Frame width

    29¾

    Frame depth (front to back)

    36

    Footboard knee angle (degrees)

    45° – 110°

    Seat height above floor

    16 – 24

    Seat angle for tilt-in-space (degrees)

    15° forward, 25° back

    Backrest angle adjustment (degrees)

    5° forward, 20° back

    Seat height above footboard

    11¼ – 21¼

    Seat height above footboard with footboard lift

    11 – 16

    Seat width with hip guides

    11 – 14

    Seat width without hip guides

    17

    Seat depth (1" increments)

    15 – 20

    Armrest height above seat

    7 – 10½

    Trunk support width

    9½ – 14

    Backrest height above seat

    19 – 24

    Headrest height above seat

    19½ – 29½

    Maximum working load (lbs)

    250
Key user dimensions (inches)
Activity Chair sizing

The user’s overall height is a general guide to help you select the appropriate chair. Choose the model that allows for growth.
Rifton small standard base activity chair

Small standard Activity Chair

(R820)
Rifton small hi low base activity chair

Small hi/lo Activity Chair

(R830)
Rifton medium standard base activity chair

Medium standard Activity Chair

(R840)
Rifton medium hi low base activity chair

Medium hi/lo Activity Chair

(R850)
Rifton large standard base activity chair

Large standard Activity Chair

(R860)
Rifton large hi low base activity chair

Large hi/lo Activity Chair

(R870)

User’s overall height

32* – 48

*28 – 38 requires mini kit

28* – 48

*28 – 32 requires mini kit

40 – 56

40 – 56

50 – 74

50 – 74
Select
Select
Select
Select
Select
Select
Item Dimensions (inches)

Frame width

Short legs: 21

Long legs: 23

Short legs with casters: 22½

Long legs with casters: 23½

25

Short legs: 23¼

Long legs: 24¼

Short legs with casters: 24½

Long legs with casters: 25½

27½

Short legs: 26¼

Long legs: 26¼

Short legs with casters: 27¾

Long legs with casters: 27¾

29¾

Frame depth (front to back)

Short legs: 21½ – 23

Long legs: 26¼ – 27¾

Short legs with casters: 23½ – 25

Long legs with casters: 27 – 28½

31

Short legs: 22½ – 24½

Long legs: 26¾ – 28¼

Short legs with casters: 25 – 27

Long legs with casters: 26½ – 28¾

31

Short legs: 30½ – 32¾

Long legs: 32½ – 34½

Short legs with casters: 31 – 33

Long legs with casters: 34¾ – 35¼

36

Seat height above floor

Short legs: 9½ – 12½

Long legs: 18½ – 21½

Short legs with casters: 13½ – 16½

Long legs with casters: 18½ – 21½

10 – 25

Short legs: 12½ – 16½

Long legs: 19 – 23

Short legs with casters: 16 – 20

Long legs with casters: 19 – 23

12 – 23

Short legs: 16½ – 20½

Long legs: 20 – 24

Short legs with casters: 16½ – 20½

Long legs with casters: 20 – 24

16 – 24

Seat angle for tilt-in-space (degrees)

15° forward, 15° back

15° forward, 25° back

15° forward, 15° back

15° forward, 25° back

15° forward, 15° back

15° forward, 25° back

Backrest angle adjustment (degrees)

5° forward, 20° back

5° forward, 20° back

5° forward, 20° back

5° forward, 20° back

5° forward, 20° back

5° forward, 20° back

Footboard knee angle (degrees)

45° – 110°

45° – 110°

45° – 110°

45° – 110°

45° – 110°

45° – 110°

Seat height above footboard

7 – 12

7 – 12

7¾ – 15¼

7¾ – 15¼

11¼ – 21¼

11¼ – 21¼

Seat width with hip guides

7 – 9

7 – 9

8½ – 11½

8½ – 11½

11 – 14

11 – 14

Seat width without hip guides

12

12

14

14

17

17

Seat depth (1" increments)

8 – 12

7 – 11 with mini kit

8 – 12

7 – 11 with mini kit

11 – 16

11 – 16

15 – 20

15 – 20

Armrest height above seat

5 – 7½

5 – 7½

7 – 10½

7 – 10½

7 – 10½

7 – 10½

Trunk support width

5½ – 11½

5½ – 11½

6½ – 12

6½ – 12

9½ – 14

9½ – 14

Backrest height above seat

12½ – 15½

12½ – 15½

15½ – 19

15½ – 19

19 – 24

19 – 24

Headrest height above seat

14½ – 21

14½ – 21

17½ – 24½

17½ – 24½

19½ – 29½

19½ – 29½

Maximum working load (lbs)

75

75

150

150

250

250

More information about the Activity Chair is located in the Product Manual.

Having trouble printing this chart? Try this printer-friendly chart instead.

Download the Activity Chair Positioning Checklist.

 

Activity Chair Sizes

a chart showing the heights and widths of Rifton Activity Chair