Grass Trimmers

About Grass Trimmers

Grass trimmers, widely known as strimmers or line trimmers, are indispensable garden maintenance tools designed to tackle areas that conventional lawnmowers cannot reach. Whether dealing with overgrown edges along pathways, awkward slopes, tight spaces around trees and shrubs, or border areas requiring precision, a quality grass trimmer delivers the finishing touches that transform a good lawn into a professionally maintained outdoor space. These versatile tools use rapidly rotating nylon line or trimmer cord to slice through grass and light vegetation with ease, making them essential equipment for professional landscapers and keen gardeners alike.

The grass trimmer market offers three main power options to suit different needs and garden sizes. Corded electric grass trimmers provide consistent power through a standard 240v mains connection, ideal for small to medium gardens where proximity to a power socket isn't problematic. Cordless grass trimmers have revolutionised garden maintenance in recent years, with lithium-ion battery technology from manufacturers like Bosch, DeWalt, and Black and Decker offering genuine freedom of movement without trailing cables. For larger properties and professional applications, petrol grass trimmers deliver uncompromised power and runtime, though they require more maintenance and fuel management. Many modern trimmers also feature telescopic shafts for user comfort, adjustable cutting widths typically ranging from 230mm to 350mm, and dual functionality as lawn edgers for creating crisp, defined borders.

Tooled-Up.com stocks an extensive range of grass trimmers from leading brands including Bosch Professional and DIY ranges, DeWalt cordless models, Black and Decker's versatile trim and edge systems, Einhell's excellent value options, and Flymo's popular designs. Whether you're a professional groundskeeper maintaining multiple properties, a tradesman keeping commercial premises tidy, or a homeowner perfecting your lawn edges at weekends, you'll find the right grass trimmer for your requirements in this carefully curated collection.

Jargon Buster

• Strimmer Line/Trimmer Cord: The nylon cutting medium used in grass trimmers, available in various diameters (typically 1.2mm to 3mm) and profiles. Thicker line suits tougher vegetation, whilst shaped line (square or twisted) cuts more efficiently than standard round cord.
• Bump Feed/Automatic Feed: The mechanism that releases additional trimmer line as it wears down. Bump feed systems require tapping the spool head on the ground, whilst automatic systems release line during operation without user intervention.
• Cutting Width/Swath: The diameter of the cutting circle created by the rotating line, measured in millimetres. Common sizes range from 230mm for compact models to 350mm or more for heavy-duty professional trimmers.
• Split Shaft: A two-piece trimmer shaft design that allows the tool to be separated for easier transport and storage, often permitting the attachment of different heads for multi-functional use.
• Brushless Motor: Advanced motor technology found in premium cordless grass trimmers that delivers improved efficiency, longer runtime, extended tool life, and reduced maintenance compared to traditional brushed motors.
• Edging Function: A feature allowing the trimmer head to be rotated 90 degrees, converting the tool into a precision lawn edger for creating clean, defined borders between grass and pathways or flower beds.

Who Uses Grass Trimmers?

Grass trimmers are versatile tools used across numerous professional trades and applications:

• Professional Landscapers and Gardeners: Essential daily-use equipment for maintaining residential and commercial grounds to professional standards
• Groundskeepers and Estate Managers: Maintaining large properties, parks, sports facilities, and public spaces
• Local Authority and Council Workers: Keeping public areas, roadside verges, and community spaces tidy
• Garden Maintenance Contractors: Providing regular lawn care services to multiple domestic and commercial clients
• Property Maintenance Companies: Managing outdoor spaces as part of facilities management contracts
• Golf Course and Sports Ground Staff: Precision trimming around obstacles and maintaining edges on playing surfaces
• Agricultural Workers and Farmers: Clearing vegetation around buildings, fencing, and access areas
• Homeowners and DIY Enthusiasts: Maintaining personal gardens and outdoor spaces to a high standard
• Allotment Holders: Managing pathways and borders around vegetable plots and communal areas

How to Choose the Right Grass Trimmers

Selecting the appropriate grass trimmer depends on several practical factors specific to your requirements:

Power Source Considerations: For gardens within 30-40 metres of a power outlet, a corded electric grass trimmer offers unlimited runtime and consistent power without the need for battery charging or fuel purchases. Cordless models provide unmatched convenience and are ideal for medium-sized gardens or when working across multiple locations, though you'll need to consider battery capacity and whether you already own compatible battery systems from manufacturers like Bosch, DeWalt, or Einhell. Petrol grass trimmers suit professional users and large properties where maximum power and extended runtime are essential, despite the added maintenance requirements.

Garden Size and Terrain: Small urban gardens up to 200 square metres are well-served by lightweight corded or compact 18v cordless trimmers with cutting widths of 230-260mm. Medium gardens between 200-500 square metres benefit from more powerful 36v cordless models or robust corded trimmers with 300-330mm cutting widths. Larger properties exceeding 500 square metres, particularly with challenging terrain or dense vegetation, warrant investment in professional-grade petrol models or high-capacity battery systems.

Weight and Ergonomics: Consider how long you'll be using the trimmer in a single session. Lightweight models around 2-3kg suit shorter tasks and less physically demanding work, whilst heavier professional models may benefit from harness systems for extended use. Telescopic or adjustable shafts are valuable for accommodating different user heights and reducing strain, whilst rotating handles improve manoeuvrability in tight spaces.

Cutting System Versatility: Basic models use only nylon line, whilst more versatile grass trimmers accept different spool sizes and line diameters for varying vegetation thickness. Premium models may accommodate blade attachments, converting them into brush cutters capable of tackling brambles, scrub, and woody growth. If you need both lawn trimming and precise edging capabilities, look for models with dedicated edging functions and guide wheels.

Brand Ecosystem: If you already own cordless power tools, choosing a grass trimmer compatible with your existing battery platform offers significant cost savings and convenience, as batteries and chargers can be shared across multiple tools in your collection.

Popular Accessories

Enhance your grass trimmer's performance and versatility with these essential accessories available from Tooled-Up:

• Spool and Line: Replacement trimmer line in various diameters and profiles, plus pre-wound spools for quick, hassle-free line changes during operation
• Grass Trimmer Blades: Solid cutting blades for tackling tougher vegetation, available in various tooth configurations for different materials
• Trimmer Harnesses: Padded shoulder harnesses and hip supports that distribute weight evenly for comfortable extended use with heavier models
• Replacement Spools and Caps: Spare spool heads, bump feed caps, and spring assemblies to keep your trimmer operating smoothly
• Trimmer Attachments: Convert compatible split-shaft models into hedge trimmers, pole saws, cultivators, and brush cutters with dedicated attachment heads
• Safety Equipment: Face shields, safety goggles, ear defenders, and protective gloves specifically designed for grass trimming work
• RCD Protection: Residual current devices (RCDs) providing essential electrical safety when using corded trimmers outdoors
• Storage Solutions: Wall-mounted brackets and hooks for organised workshop or shed storage
• Replacement Batteries and Chargers: Additional battery packs for extended runtime and fast chargers to minimise downtime

Safety Information

Grass trimmers are powerful tools that require proper safety precautions to prevent injury:

Electrical Safety: When operating corded electric grass trimmers outdoors, always use a suitable RCD (residual current device) to protect against electric shock in the event of cable damage or moisture ingress. Regularly inspect cables for wear, damage, or exposed wiring, and never use a damaged cable. Ensure your trimmer is connected to a properly earthed 240v socket and keep extension leads away from the cutting area.

Personal Protective Equipment: Eye protection is absolutely essential, as grass trimmers can throw up stones, debris, and vegetation fragments at high velocity. Wear sturdy safety goggles or a full face shield for comprehensive protection. Ear defenders are recommended for extended use, particularly with petrol models that can exceed 85 decibels. Wear long trousers, closed-toe boots with good grip, and consider protective gloves to guard against vibration and debris.

Operating Safely: Before starting work, clear the area of stones, wire, glass, and other debris that could become dangerous projectiles. Maintain a safe working distance from bystanders, pets, and property—at least 5 metres is recommended. Never operate a grass trimmer whilst under the influence of alcohol or medication that may impair judgement. Take regular breaks to avoid fatigue, and never override or disable safety guards or shields fitted to the trimmer.

Fuel Safety (Petrol Models): Store petrol in approved containers in well-ventilated areas away from ignition sources and living spaces, in compliance with HSE guidelines. Always refuel when the engine is cold, outdoors, and away from naked flames. Use the correct fuel mixture as specified by the manufacturer, and dispose of old fuel responsibly at designated collection points.

Frequently Asked Questions

What's the difference between a grass trimmer and a brush cutter?

Grass trimmers are designed for cutting grass and light weeds using nylon line, making them ideal for lawn edges and general garden maintenance. Brush cutters are more powerful machines capable of accepting solid metal blades, designed to tackle dense undergrowth, brambles, scrub, and woody vegetation up to several centimetres thick. Many professional-grade grass trimmers can accept blade attachments, effectively converting them into brush cutters for occasional heavier work.

How long will a cordless grass trimmer run on a single battery charge?

Runtime varies considerably depending on battery capacity (measured in ampere-hours, Ah), motor efficiency, and working conditions. A typical 18v 2.0Ah battery might provide 15-20 minutes of continuous trimming, whilst a larger 36v 4.0Ah battery could deliver 40-60 minutes. For extended sessions, consider investing in additional batteries or choosing a model with brushless motor technology, which offers approximately 25-30% longer runtime than conventional brushed motors.

Can I use my grass trimmer as a lawn edger?

Many modern grass trimmers, particularly models from Bosch, Black and Decker, and DeWalt, feature integrated edging functions that allow the cutting head to be rotated 90 degrees. This converts the trimmer into a precision edger for creating clean, defined borders between lawns and pathways or flower beds. Models with this functionality are often marketed as "trim and edge" systems and typically include a guide wheel for consistent edging depth.

What diameter trimmer line should I use?

Standard lawn trimming around typical domestic gardens works well with 1.6mm to 2.0mm diameter line. For lighter, more delicate work around flower beds, opt for 1.2mm to 1.5mm line. Tackling tougher grass, weeds, and rougher terrain benefits from thicker 2.4mm to 3.0mm line, though you must ensure your trimmer's motor and spool head are rated for the heavier line. Always consult your trimmer's manual for the manufacturer's recommended line diameter specifications.

Do I need to wear hearing protection when using a grass trimmer?

It depends on the model and duration of use. Corded and cordless electric grass trimmers typically operate at 75-85 decibels, which is below the HSE's action level for single exposure but can cause fatigue during extended use—hearing protection is advisable for sessions exceeding 30 minutes. Petrol grass trimmers commonly exceed 90-100 decibels and require hearing protection for all use in accordance with HSE noise at work regulations, particularly for professional users engaged in regular, prolonged trimming work.