Is There A Standard Heel-Lift Height?
No. The appropriate height depends on why the heel is being raised.
Someone using a lift temporarily for Achilles discomfort may require a different amount from someone with a measured leg-length difference. Footwear depth, ankle movement, comfort and stability must also be considered.
A heel lift should provide enough elevation to achieve its intended purpose without unnecessarily altering the position of the foot.
The suitable height may be influenced by:
- The condition being managed
- Whether the lift is being used in one or both shoes
- Ankle flexibility
- Calf tightness
- Footwear depth
- Heel stability
- Body weight
- Walking and working demands
- Previous surgery or injury
- Any prescription supplied by a clinician
More height is not automatically more effective.
What Heights Are Available?
The Orthotix 5 Layer Heel Elevator provides approximately five height options:
- 15 mm
- 12 mm
- 9 mm
- 6 mm
- 3 mm
The height is reduced by removing layers from the underside of the device. Its adjustable construction allows the elevation to be changed without buying a separate lift for every height.
The selected height should be the lowest amount that provides the required support while keeping the shoe secure and comfortable.
Should You Start With The Maximum Height?
Not normally, unless that height has been professionally assessed or specifically prescribed.
Starting at the full 15 mm may create a larger change than necessary. It can also make it harder to determine whether discomfort is caused by the lift itself, excessive elevation or unsuitable footwear.
Where there is no prescribed measurement, beginning with a more modest height may allow you to assess:
- Whether the original symptoms improve
- Whether the heel remains secure
- Whether the shoe still fits properly
- Whether walking feels balanced
- Whether pressure develops beneath the forefoot
- Whether discomfort appears elsewhere
Do not repeatedly change the height from one day to the next. Allow enough time to assess each setting comfortably.
How Much Heel Lift May Help Achilles Tendon Pain?
Heel lifts may temporarily reduce how far the ankle moves upwards during walking. This can alter load through the calf–Achilles complex and may make everyday activity more comfortable for some people.
Current clinical guidance allows heel lifts to be used temporarily for midportion Achilles tendinopathy to reduce ankle dorsiflexion during activity. It does not identify one universally effective height for every patient.
For insertional Achilles symptoms, where discomfort occurs at the tendon’s attachment to the heel bone, elevation may also reduce compression around the back of the heel. NHS guidance recommends wearing heel raises in both shoes for this purpose.
The height should:
- Make walking more comfortable
- Avoid pushing the heel out of the shoe
- Avoid causing forefoot pressure
- Preserve stability
- Be used alongside rehabilitation rather than instead of it
Progressive Achilles strengthening remains an important part of longer-term management.
How Much Heel Lift May Help Plantar Fasciitis?
There is no established heel-lift height that is best for every person with plantar fasciitis.
A modest elevation may improve comfort where completely flat footwear, calf tightness or local heel pressure contributes to symptoms. However, other people may benefit more from:
- Heel cushioning
- Arch support
- A full-length orthotic
- Supportive footwear
- Stretching
- Activity modification
- A night splint for persistent first-step pain
A heel lift should therefore be selected because elevation addresses a relevant need, not simply because discomfort is located beneath the heel.
How Much Lift Is Needed For A Leg-Length Difference?
A suspected leg-length difference should be properly assessed before choosing a height.
A person may appear or feel uneven because of:
- A structural difference in bone length
- Pelvic position
- Foot posture
- Joint stiffness
- Muscle tightness
- Previous injury
- Hip, knee or spinal factors
A clinician may use measurements, standing assessment, blocks beneath the foot and walking observation to determine whether a lift is appropriate.
NHS orthotic services use heel lifts and footwear raises to accommodate clinically relevant leg-length differences and improve balance or walking.
The full measured difference is not always corrected immediately. Some people tolerate a partial or gradual correction more comfortably.
Can A Large Leg-Length Difference Be Corrected Inside The Shoe?
Only a limited amount of height can be added inside most footwear.
As the lift becomes thicker, it raises the entire foot towards the top of the shoe. This may cause:
- Heel slippage
- Rubbing around the heel counter
- Reduced ankle stability
- Forefoot pressure
- Toe compression
- Difficulty fastening the shoe
- An altered walking pattern
Where a larger raise is needed, an external footwear adaptation may be safer and more stable than placing a very thick insert inside the shoe. NHS orthotic services provide external raises and other footwear adaptations for clinically assessed requirements.
Should The Same Height Be Used In Both Shoes?
It depends on the purpose of the lift.
Achilles Symptoms
Equal heights are generally used in both shoes, even where only one Achilles tendon is painful. This reduces ankle dorsiflexion without creating an unintended difference in leg height.
General Heel Elevation
Matching lifts are normally the more balanced option when the aim is to raise both heels or improve comfort in excessively flat footwear.
Leg-Length Difference
A lift may be used only on the shorter side when a genuine difference has been assessed and unilateral correction has been recommended.
Dedicated guide:
Should You Wear Heel Lifts In Both Shoes?
What Happens If The Heel Lift Is Too High?
An excessively high lift may cause:
- The heel to slip out of the shoe
- Rubbing or blistering
- Increased pressure beneath the forefoot
- A feeling of leaning forwards
- Reduced ankle stability
- Calf discomfort
- Changes in walking
- New knee, hip or lower-back pain
- Worsening of the original symptoms
These effects do not necessarily mean that all heel lifts are unsuitable. The product may simply be too high, poorly positioned or incompatible with the footwear.
Reduce the height or stop using the lift if symptoms progressively worsen.
What Happens If The Lift Is Too Low?
A lower lift may remain comfortable but fail to achieve the intended effect.
Possible signs include:
- No noticeable change in comfort
- Continued aggravation in very flat footwear
- No meaningful difference in Achilles symptoms
- Insufficient correction of a prescribed leg-length discrepancy
- Continued heel or calf tension during walking
However, the absence of immediate improvement does not automatically mean that a higher lift is required. The device may not be suitable for the condition, or another part of the management plan may need attention.
How Should An Adjustable Heel Lift Be Reduced?
The Orthotix heel elevator uses peel-away layers.
When changing the height:
- Remove the lift from the shoe.
- Identify the lowest removable layer.
- Peel the layer away evenly from the underside.
- Check that the remaining surface is flat.
- If using a pair, remove the same number of layers from both lifts unless a clinician has instructed otherwise.
- Refit the lift securely beneath the heel.
- Check shoe fit and walking comfort.
Avoid cutting through the main body or creating an uneven surface.
Once a layer has been permanently removed, it may not be possible to restore the original height securely. Confirm the intended adjustment before peeling it away.
Should Heel Height Be Reduced Gradually?
Where a heel lift has been used temporarily, it may sometimes be reduced gradually as symptoms and function improve.
An adjustable lift makes it possible to reduce elevation in stages rather than removing the entire raise at once.
Gradual reduction may be considered when:
- Achilles symptoms have improved
- Rehabilitation is progressing
- Walking without the higher lift feels comfortable
- A clinician has advised tapering
- The original reason for temporary elevation is resolving
There is no universal reduction schedule. The appropriate timing depends on the condition and response to treatment.
A prescribed lift for a structural leg-length difference should not be altered without appropriate advice.
How Long Should You Trial A Height?
Allow enough time to assess comfort during ordinary activity before deciding whether a different height is needed.
Begin with:
- Short periods of normal walking
- Familiar and supportive footwear
- Low-demand daily activities
- Regular checks for rubbing or pressure
Avoid first testing a new height during:
- A full work shift
- A long walk
- Running
- Competitive sport
- A demanding hike
- An unusually active day
The feet and lower limbs may require some time to adapt to the altered position.
What Footwear Can Accommodate A Higher Lift?
Footwear must have enough internal depth to hold both the foot and lift securely.
Suitable shoes normally provide:
- A closed heel
- A secure lace, strap or fastening
- A stable heel counter
- Adequate heel depth
- Sufficient toe room
- A firm sole
- Enough width
- A removable liner where additional space is required
Supportive footwear that already has a small heel gradient may also be more comfortable for some people with Achilles symptoms than completely flat shoes.
A higher lift is unsuitable if it causes the heel to sit above the secure portion of the shoe.
Where Should The Lift Sit?
The lift should be positioned centrally beneath the heel.
It should:
- Sit flat
- Remain stable
- Support the whole heel evenly
- Avoid curling at the edges
- Avoid moving from side to side
- Feel consistent during every step
Depending on the product and footwear, it may sit on top of or underneath the existing shoe liner.
Check both shoes individually. Two pairs labelled as the same size may have different internal shapes and available depth.
Can You Combine A Heel Lift With An Orthotic Insole?
Potentially, but combining inserts increases the amount of space occupied inside the shoe.
A separate heel lift may also change how the orthotic’s arch support contacts the foot.
Check that:
- Both inserts remain flat
- Neither device moves
- The heel remains secure
- The arch support still sits comfortably
- The toes are not compressed
- The footwear fastens properly
- The combined height does not create instability
Where arch support and heel elevation are both required, an orthotic with an incorporated heel raise may provide a more stable solution than stacking separate products.
Why Choose The 5 Layer Heel Elevator?
The 5 Layer Heel Elevator (Mid Density) provides adjustable heel elevation using removable layers.
Key features include:
- Adjustment from approximately 15 mm to 3 mm
- Five peel-away height stages
- EVA foam construction
- Adhesive layers for stability
- A non-slip top cover
- Compact positioning beneath the heel
- Multiple size options
- Supplied as a pair
This allows the elevation to be tailored more closely to footwear, comfort and the reason for use.
The Key Takeaway
There is no single heel-lift height that is correct for everyone.
The appropriate amount depends on:
- Why the heel is being raised
- Whether one or both shoes are involved
- The available footwear depth
- Comfort and stability
- The person’s symptoms
- Any clinical measurement or prescription
Use only enough elevation to achieve the intended purpose. Avoid assuming that the maximum height will provide the greatest benefit.
A suspected leg-length difference, postoperative requirement or complex Achilles problem should be professionally assessed before selecting or substantially changing the lift height.
