Indoor straight stairlift

Harmar Pinnacle SL600

Photography may show optional equipment or finishes. Confirm your configuration.

HomePro SL600 demonstration

Existing HomePro model-page demonstration. Confirm current options and the exact configuration in your proposal.

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Make the journey between floors feel more familiar.

A wider seat and a compact folded profile, with the everyday details worth trying for yourself. Explore the SL600 around your home, your comfort and your routine.

350 lb
Listed weight capacity
10½ inches
Standard folded width from wall

Optional rail equipment changes the dimensions. A home and user assessment confirms suitability.

Designed around real life

Comfort is in the details you use every day.

See how the seat, the space and the handover work together—not just how the lift looks in a photograph.

Try the seating position

Check the seat depth, support and reach to the controls together.

Keep the whole staircase in mind

Look at folded passage space, rail endings and both landings.

Know what is included

Separate standard equipment from options and aftercare in the written proposal.

Your questions, answered.

Choose a question to explore the details.

The SL600 has a 350 lb listed capacity, a wider seat and a smaller standard folded width. Its retractable belt and chassis obstruction sensor are listed as standard. Use these differences to start a conversation—not to decide suitability without trying the proposed setup.

The listed seat measures 18 inches wide by 14⅜ inches deep. More width is not automatically a better fit. Try the seating position, armrests, controls and swivel, and consider how you will get on and off at both landings.

Harmar lists 10½ inches from the wall when folded in the standard configuration. Remaining passage space depends on your staircase and complete installation. Optional folding rails change this dimension; ask for the clearance of the exact proposed configuration.

Harmar lists obstruction sensors on the footrest and chassis, plus a swivel-seat interlock. Ask for a demonstration and the operating instructions. These features do not replace keeping the travel path clear or following the manual.

The lift operates on batteries, but available journeys depend on battery condition and use. Ask where it needs to park for charging, how charging problems are indicated and what to do during a prolonged outage. Do not treat a maximum trip figure as a guaranteed reserve.

Ask for a written proposal covering rail layout, any folding rail, site preparation, installation, handover and aftercare. Confirm the final price, equipment warranty and who handles service. This page does not establish availability or an installation date.

At a glance

Selected SL600 specifications
ApplicationIndoor straight stairs
Capacity350 lb
Standard folded width10½ inches from wall
Seat width × depth18 × 14⅜ inches
Retractable seat beltStandard
Obstruction sensorsFootrest and chassis

Dimensions do not establish individual suitability or remaining staircase clearance.

Selected facts from Harmar’s SL600 specifications, reviewed September 22, 2026. The source lists conflicting folding-rail widths; confirm that optional dimension for your configuration. Buyer questions are editorial guidance, not operating instructions.

The person. The staircase. The everyday routine.

Make room for
the right questions.

A specification helps narrow the conversation. The next step is understanding the complete installation and how you will use it.

01

The space around the lift

Review the stairs, both landings, nearby doors and space for other household members. Folded width alone cannot confirm the fit.

02

Getting on, riding and getting off

Discuss the seat, controls and transfers with the person who will use the lift. Ask to see the exact configuration being proposed.

03

Ownership after installation

Ask about operating instruction, battery care, maintenance, warranty terms and a clear service contact.

See it with HomePro

A closer look at
the SL600.

Watch HomePro’s model-specific footage, then bring the questions it raises.

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Product demonstration

Harmar SL600

From HomePro Mobility’s YouTube channel.

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Open original on YouTube (new tab) ↗

YouTube players load with this page without autoplay; YouTube’s privacy terms apply. Videos supplement an assessment and the instructions for your equipment.

Two options. Your home. Your fit.

SL300 or SL600?

Both serve indoor straight stairs. Here’s where they differ—and what to try before you choose.

Pinnacle SL300 product example

Pinnacle SL300

A compact seat. A straightforward starting point.

Weight capacity
300 lb
Seat width × depth
16½ × 15 inches
Standard folded width¹
11 inches
Retractable seat belt
Optional
Chassis obstruction sensor
Optional
Pinnacle SL600 product example

Pinnacle SL600

A wider seat, with more features included.

Weight capacity
350 lb
Seat width × depth
18 × 14⅜ inches
Standard folded width¹
10½ inches
Retractable seat belt
Standard
Chassis obstruction sensor
Standard
You’re viewing this model

Start with the person, not the model number.

Try the seat, controls and swivel. A wider seat or higher capacity does not automatically mean a better fit.

Then check the space around it.

¹ Widths are measured from the wall with the standard lift folded. A half-inch difference does not establish usable walking clearance. Optional folding rails change the dimensions; confirm the exact configuration.

Not sure which fits?
Bring both options into your home assessment.

Selected manufacturer specifications checked September 22, 2026: SL300 · SL600. Standard and optional equipment must be confirmed in your written proposal. Harmar’s SL600 page lists conflicting folding-rail widths, so that optional dimension is not compared here.

Clarity before commitment

Ask for the complete picture.

A written proposal should explain the equipment, preparation, installation and support—not just the chair.

  • The selected model, options and rail layout
  • Site preparation and what installation includes
  • Equipment demonstration and operating documents
  • Warranty, service responsibilities and total quoted scope

Let’s talk about your home.

Bring the questions. We’ll start there.

Restoring Independence. Improving Lives.