Forklift Extensions & Forklift Slippers: The Complete Sizing Guide

Finding the right forklift extensions (forklift slippers) should be a quick and simple process! Here's your straightforward guide on how to measure your forklift tynes (tines / forks) so you can easily choose the right forklift slippers and get the correct size first time around.

1. Measuring Your Existing Tynes

Don't let a bad fit slow you down. A forklift extension (forklift slipper) that's too small will jam and seize, costing your team valuable time and frustration. One that's too large will be sloppy and unstable, creating a serious safety hazard and risking damage to your load. Get it right the first time by accurately measuring the width, thickness, and length of your existing tynes (tines / forks) before you order. A secure, perfect fit is the key to a fast, efficient, and safe operation.

Pro Tip: Always measure at the back of the tyne to get the most accurate size, avoiding any worn-down areas.

Are your tynes worn? If the thickness at the heel is worn down by 10% or more, they are no longer safe or legal. They must be replaced. Shop for replacement tynes here.

Diagram showing how to measure forklift tynes

Forklift Extension / Forklift Slipper Options to Suit:

2. Calculate Maximum Safe Length

Using a forklift extension (forklift slipper) that's too long is a common, but dangerous mistake. To stay compliant with WorkCover and Australian Standards, you must use a forklift extension that is within 167% of your actual tyne length. This ensures your forklift can handle the load safely without dangerously shifting the load centre, which can lead to tip-overs. By calculating your maximum safe length, you ensure your equipment is both safe and fully compliant, giving you peace of mind on the job.

The Simple Rule: [Your Tyne Length in mm] x 1.67 = [Your Maximum Safe Extension Length in mm].

Diagram showing forklift extension

Forklift Extension / Forklift Slipper Length Options:

Depending on the size category of your tynes determined in the first step, we have a few different length options available, including:

1220mm
1370mm
1600mm
1780mm
1830mm
2100mm
2400mm
+ More Options

Things to Consider

Fit is Critical: Ensure the forklift extensions (slippers) fit your existing tynes / tines / forks.
- Too small: They will jam and be difficult to move.
- Too big: They will be sloppy, sit unevenly, and create an unsafe, unstable lift.
Structural Integrity: Avoid cheap, "open bottom" forklift slippers. Choose slippers with a fully enclosed bottom as this provides structural integrity and prevents deformation over time.
Finish & Durability: Opt for a zinc finish over a standard painted finish. Zinc offers superior protection against rust and wear, ensuring a longer lifespan.
Use Locking Pins: Always secure the slippers to the forks using the safety locking pins before every use. This prevents them from sliding off during operation.
- Tip: Store the pins in a safe, designated place when not in use - they are notoriously easy to lose!
Proper Load Handling:
- Slippers are designed to support long, stable loads, not increase the forklift’s maximum lift capacity.
- Never pick up a heavy load at the very tip of extension. For maximum safety, always keep the load as close to the forklift carriage (heel of the forks) as possible.

Equipment Warehouse has stock of budget-friendly forklift extensions (forklift slippers) in Adelaide, Brisbane, Sydney, Melbourne and Perth, and competitive pricing for delivery Australia-wide. Give us a ring and receive a quote within the hour!