| Model | Height | Depth | Width | Number of Steps | Step Height | Step Depth | Size | Suggested Weight | Picture |
| Mini 3 | 16 | 16 | 10 | 3 | 5 | 5 | Mini | 15 |
|
| Mini 4 | 20 | 20 | 10 | 4 | 5 | 5 | Mini | 15 |
|
| Mini 5 | 26 | 26 | 10 | 5 | 5 | 5 | Mini | 15 |
|
| 2 - Step | 13 | 13 | 19 | 2 | 7 | 7 | Medium | 20-50 |
|
| 3 - Step | 22 | 22 | 19 | 3 | 7 | 7 | Medium | 20-50 |
|
| 4 - Step | 27 | 27 | 19 | 4 | 7 | 7 | Medium | 20-50 |
|
| 3 - Large | 22 | 31 | 19 | 3 | 7 | 10 | Large | 50-200+ |
|
Dimensions are approximate - Dimension are rounded to nearest 1/2". The suggested Weight for the pet stairs is to aid in determining the correct step for your pet and is not the weight limit for the step. For instance the mini steps have a suggested weight limit of 15 pounds. The mini stairs would still be the correct choice for an over-weight cat or dog your cat or small dog is 25 pounds the mini step would still be appropriate. With the exception of "Hammer's" Dog step, the steps are not designed to be used by humans. While you could sit on the top step and not break the step, it is not corrected sized for use by humans.