A better way aboard.

ShiftStep is a three-step stainless-steel boat trailer ladder with three ladder angles—60°, 70° or 80°—and 16 horizontal mounting positions at 22.5° intervals. Slide the base along your trailer beam and combine these adjustments to position the steps for convenient access around the bow, winch and other equipment.

Stainless-steel structure and mounting hardware
Three 280 mm wide steps with anti-slip pads
Adjustable mounting position, direction and ladder angle
Clamp-on installation without drilling or welding
Maximum user mass: 150 kg, including carried items
Made in Bulgaria, EU

Three adjustments. One comfortable way aboard.

Every boat and trailer combination is different. ShiftStep lets you adjust where the ladder sits, which way it faces and how steeply it rises.

Position along the beam Slide the base forward or backward along a suitable trailer beam to choose your mounting location.

Ladder angle Select 60°, 70° or 80° to suit the available space and reach. Adjust the step supports to match.

Direction towards the boat Choose from 16 indexed base positions, spaced at 22.5°, to point the steps towards your boarding position.

ShiftStep 60 degree mast setting with dimensions — Compare the 60°, 70° and 80° mast settings. Linear dimensions are in millimetres. Tap an illustration to enlarge.

ShiftStep 70 degree mast setting with dimensions — Compare the 60°, 70° and 80° mast settings. Linear dimensions are in millimetres. Tap an illustration to enlarge.

ShiftStep horizontal position minus 90 degrees — Nine positions shown. 0° faces forward towards the boat. The base has 16 indexed positions around the full circle; usable positions depend on clearance.

ShiftStep horizontal position minus 67.5 degrees — Nine positions shown. 0° faces forward towards the boat. The base has 16 indexed positions around the full circle; usable positions depend on clearance.

Together, these adjustments help you find a position with clearance around the bow, winch, trolling motor and other equipment. Available positions depend on your trailer layout. Secure all adjustments before use.

Stainless steel, down to the hardware

ShiftStep combines an SS304 stainless-steel structure with stainless-steel bolts, nuts, washers and mounting components.

The rectangular mast supports three 280 mm wide steps, each fitted with an anti-slip pad. The base clamps around the trailer beam, so installation requires no drilling or welding.

Insulating layers on the upper supports and lower clamps separate the stainless-steel mounting surfaces from the galvanized trailer beam. This helps protect the zinc coating and reduces direct contact between the different metals—a factor in galvanic corrosion when moisture is present.

The clamp-on design also avoids making holes or welds through the trailer’s protective coating.

Designed and manufactured by DonMarine in Bulgaria, with direct help available for fitment and installation.

Will ShiftStep fit your trailer?

Measure the outside width and height of the beam where you want to mount the ladder.

Beam shape Closed square or rectangular section

Beam width 40, 45, 50, 55 or 60 mm

Beam height Up to 80 mm with the supplied mounting bolts

Open C-channel beams are not suitable. Shorter or longer mounting bolts are available on request.

Need help checking your setup?
Send your beam measurements and a clear photo of the mounting area to info@donmarine.eu.

What’s included

Stainless-steel mast
Three steps with anti-slip pads and their supports
Mounting base and adjustable mast bracket
Two tabbed base supports and two lower clamps
Stainless-steel assembly and beam mounting hardware
Installation and user instructions

Technical specifications

Structural material SS304 stainless steel

Mounting hardware Stainless steel

Number of steps 3

Step width 280 mm

Main mast 60 × 40 × 3 mm rectangular tube

Maximum user mass 150 kg, including clothing and carried items

Ladder angles 60° / 70° / 80°

Horizontal positions 16 positions at 22.5° intervals, subject to clearance

Supported beam widths 40 / 45 / 50 / 55 / 60 mm

Beam height with supplied bolts Up to 80 mm

Attachment Clamp-on mounting

Manufacture Bulgaria, European Union

Frequently asked questions

Do I need to modify my trailer?

No drilling or welding is required. ShiftStep clamps around a suitable closed square or rectangular trailer beam.

Can I adjust it around my winch or trolling motor?

The sliding base, indexed direction settings and three ladder angles give you several ways to position it. Check the available space around your equipment before ordering.

My beam is taller than 80 mm. Can I still fit it?

Longer mounting bolts are available on request. Send us the beam width, height and a photo so we can help check the installation.

Does it arrive assembled?

Assembly and positioning on your trailer are required. The illustrated manual explains the installation sequence and final tightening.

Is delivery included in the price?

Shipping is charged separately and calculated at checkout.

Can I get help with installation?

Yes. Contact DonMarine at info@donmarine.eu with your question and photos of your setup.

Before climbing

Use only with the trailer stationary and secured against movement. One person at a time, up to 150 kg including carried items. Check the ladder and its fixings before use, and follow the full installation and user manual.