Rear support (2-wheel): Back legs need help
Common signs: rear dragging, knuckling, hind-end fatigue, difficulty standing up.
Best when front legs can pull/steer and your dog mainly struggles in the rear (weakness, injury, paralysis).
Wheelchair Fit & Sizing Center
Measure right. Choose the right support. Fine-tune the fit.
If you’re stuck on “Which wheelchair type?” or “Which size?”, this page gives you a simple flow: quiz → measure → match → fit-check.
Educational note: Mobility gear should never “hide” pain. If weakness is sudden, painful, or rapidly worsening, talk to a veterinarian first.
- 0) 30-second fit quiz (auto-recommendation)
- 1) Find your wheelchair type
- 2) What to measure (and why it matters)
- 2.1) Measurement notepad (copy/paste)
- 2.2) I already measured — show my size range
- 3) Match measurements to a size chart
- 4) Fit check & comfort checklist
- 5) Common fit problems (fast fixes)
- FAQ
0) 30-second fit quiz (no login, no email)
Answer 3 quick questions. Your result card will link directly to the best collection to start with.
Your recommendation
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Reminder: this quiz picks the best starting collection. Final sizing should always be measurement-based.
1) Find your wheelchair type
Pick the support based on where your dog is weak (and where your dog is still strong).
Front support (2-wheel): Front legs need help
Common signs: front limp/weakness, not weight-bearing, shoulder fatigue, “face-planting.”
Best when back legs can push and balance, but front legs are weak, injured, or not weight-bearing.
Full support (4-wheel): Balance or multiple limbs affected
Common signs: wobbling/tipping, weakness in more than one limb, needs full-body stability.
Best when your dog needs stability at both ends (wobbling, tipping, multi-limb weakness), or you’re bridging a rehab phase.
Not sure if it’s “time” yet? Read:
When should you put your dog in a wheelchair?
2) What to measure (and why it matters)
Your size chart is measurement-based. Measure once carefully, then reuse those numbers across products.
| Measurement | How to measure (quick) | Where it’s used |
|---|---|---|
| Chest girth | Wrap a soft tape around the widest part of the chest, behind the front legs. | Most size charts (rear, front, full support). |
| Body length | Base of neck to base of tail (follow the back, not the curve under the belly). | Common on 4-wheel sizing; helps frame length match. |
| Top-of-back to floor (height) | Measure from the top of the back down to the floor while standing naturally. | Helps set cart height so paws don’t drag and shoulders/hips stay neutral. |
| Front-to-rear leg distance | Front leg mid-point to rear leg mid-point (standing or supported). | Rear-support carts that use multi-point sizing fields. |
| Left-to-right front leg distance | Measure across the chest between front legs (widest stable points). | Sets frame width to avoid rubbing and pressure points. |
| Frame width / length targets | Use chart ranges as the “allowed window,” then adjust straps for comfort. | Fine-tuning and between-sizes decisions. |
2.1) Measurement notepad (copy/paste)
Fill what you can. You can copy the summary and paste it into the Contact Us form to get help choosing a size.
Preview (auto-format)
This is what you’ll copy/paste:
Measurements:
- Chest girth:
- Body length:
- Height (top of back to floor):
- Front↔Rear leg distance:
- Left↔Right front leg distance:
Notes:
If your dog wobbles/tips, mention that in Notes—balance affects whether a 4-wheel cart is the safer starting point.
2.2) I already measured — show my size range
Enter your measurements once. We’ll match them against the size-chart ranges and show the best size(s) to start with. (No apps, no filters — just a quick on-page match.)
Your match
Tip: This matcher only works when you paste your real size-chart ranges into the config (see the JS block below).
Once configured, it becomes a “no-friction” step that reduces bounce and pushes users straight to the right size.
3) Match measurements to a size chart
If you’re shopping rear-support (back legs)
Use the size chart on the product page and match the ranges. If one measurement lands in a smaller size and another lands in a larger size, prioritize comfort and adjustability (and avoid “tight” fits).
If you’re shopping full-support (4-wheel)
Start with body length + chest girth ranges, then fine-tune height/straps after assembly. Full-support carts trade simplicity for stability—plan a short “fit session” the first day.
Between sizes? A practical rule:
choose the size that keeps straps off sensitive areas and gives you room to adjust—then tighten down gradually over a few sessions.
4) Fit check & comfort checklist
Stability check (30 seconds)
- Dog stands “centered” in the cart (not front-heavy or rear-heavy).
- Wheels roll straight; cart doesn’t yaw or twist.
- No strap is digging into armpits, groin, or belly midline.
- Paws clear the ground (no toe-drag), but hips/shoulders aren’t over-lifted.
Quality-of-life check (this week)
- Short sessions first (confidence matters more than distance).
- After each session: check skin contact points for redness or heat.
- Energy and mood improve outside (sniffing, exploring, engagement).
- Bathroom comfort is preserved (positioning is stable).
5) Common fit problems (fast fixes)
Tap a symptom to jump to the quick checklist.
Paws still dragging
Likely causes
- Cart height set too low.
- Harness not seated correctly (dog not centered).
- Rear support not aligned with hips (rear carts) / front support too low (front carts).
Fast fixes
- Raise cart height slightly, then re-check posture (avoid “over-lifting”).
- Re-center the dog in the frame; tighten evenly left/right.
- Do a 30-second walk test on flat, non-slip flooring, then adjust again.
Rubbing near armpits / groin
Likely causes
- Frame width too narrow (pressure points).
- Straps twisted or sitting on sensitive seams.
- Dog off-center (one strap doing all the work).
Fast fixes
- Re-center frame width, then re-seat straps (flat, not folded).
- Loosen → reposition → tighten gradually.
- After a short session, check for redness/heat and adjust before longer walks.
Cart pulls to one side
Likely causes
- Left/right straps not symmetric.
- Wheel alignment slightly off.
- Dog leaning away from discomfort.
Fast fixes
- Match strap lengths left/right; re-check with dog standing centered.
- Do a straight-line roll test with no dog inside (should track straight).
- If leaning persists, check for rubbing or soreness first.
Dog freezes or refuses to move
Likely causes
- First-day uncertainty (very common).
- Fit feels unfamiliar (pressure points, balance shift).
- Surface is slippery / noisy.
Fast fixes
- Short sessions (1–3 minutes), treats, praise, stop before frustration.
- Start indoors on non-slip flooring.
- Make 2–3 tiny adjustments only—don’t re-fit everything at once.
Want the simplest “next step” after fixes? Measure → match chart → do a short stability walk test:
Measuring guide.
FAQ
Is breed enough to pick a size?
No—use measurements. Dogs of the same breed can differ wildly in chest depth, weight distribution, and mobility condition.
Can my dog pee/poop in the wheelchair?
Many dogs can, but setup matters. Do a short test session, then adjust height and harness placement if needed.
What if I’m between sizes?
Choose the size that gives you adjustment room and reduces rubbing risk. You can tighten down over a few sessions.
Where do I get help if I’m not sure?
Copy your measurement summary from the notepad above and paste it into: Contact Us.