A lawn edger is used to trim grass in areas such as sidewalks and driveways, thus giving the lawn a well groomed and manicured look. Purchasing a lawn edger can get a bit confusing as each one offers many options. Rating a lawn edger depends on the size of your lawn, which ultimately determines the type of edger to be used and the amount of time it takes to complete the project.
Measure the size of your lawn or yard with a measuring tape, and write it down on paper. If your lawn is square or rectangular, measure the length and width, then multiply the two figures to get the total area in square feet. If your lawn is irregular, drive stakes at each corner and extend a string through them. Measure the distance between the stakes to determine the length and width, then multiply them both.
Electric edgers are usually used for small lawns, while gas powered edgers are better suited for large lawns.
Select a gas powered edger for a large lawn, which is quite noisy and more expensive than an electrical one, but requires less maintenance and upkeep. For a smaller lawn, select an electric edger with or without a cord, or a stick edger. Check the handle of a stick edger to make sure it is comfortable.
Check the power rating and motor of any gas edger that you like. This rating is measured in horsepower or foot-pounds of torque. A high rating means more blade power.
Determine cord length for electric edgers. Cordless electric edgers work on battery packs. Check the battery time on the shortlisted edger to determine how long it will last in your lawn before you have to recharge it to complete the task. Corded electric edgers limit mobility, so they are not a good option if your lawn has lots of trees you need to work around.
View the blade size and control features of edgers. Standard blades are 7 inches and 9 inches long. Some edgers have adjustable blade angles for angled or straight cuts, depending on how you want to edge your lawn.
View other accessories your edger can use. Some edgers can use ripping blades or trenching blades to help you complete the task according to your preference.
Take into account the maintenance required for your edger. Some edgers will require frequent blade changing and engine maintenance. Review the owner's manual of the edger you are interested in, whether electric or gas powered. Also compare the warranty period each one offers.