20-Inch or 13-Inch Lawn Mowers? Compared by Specs
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
Choosing between a 20-Inch vs 13-Inch lawn mower depends on your yard size and power preference. Both mowers cut grass at heights from 1.3 to 2.6 inches. The main difference lies in the cutting width and drive mechanism. One offers a wider deck for fewer passes, while the other provides a compact, motorless design. You need to decide which specs match your lawn conditions.
Key differences
| Aspect | LawnMaster 20-Inch Manual Push Reel Mower | MZK 13-Inch Brushless Cordless Lawn Mower |
|---|---|---|
| Cutting Width | 20 in | 13 in |
| Power Source | Manual reel | 20V battery |
| Drive Type | Push | Electric |
| Motor Type | Not listed | Brushless |
| Battery Capacity | Not listed | 2×4.0Ah |
| Runtime | Not listed | 30 min |
Which one should you choose?
Choose LawnMaster 20-Inch Manual Push Reel Mower if
- You prefer a manual, gas-free option that requires no charging
- You want a wider 20-inch deck to cover more ground per pass
- You are willing to provide your own physical effort to push the mower
Choose MZK 13-Inch Brushless Cordless Lawn Mower if
- You need electric power with a brushless motor for consistent cutting
- You want a compact 13-inch mower that is easy to store
- You prefer a battery-powered system with a grass bag for cleanup
Verdict: The 20-inch manual mower suits users who want zero electricity and a wider cut. The 13-inch electric mower is better for those who prefer motorized assistance and a compact footprint. Choose based on whether you prioritize deck width or power source.
20-Inch vs 13-Inch Mower Specs
Cutting Width
The LawnMaster 20-Inch Manual Push Reel Mower features a 20-inch cutting deck, while the MZK 13-Inch Brushless Cordless Lawn Mower has a 13-inch deck. A wider deck covers more ground per pass, which can reduce the total time needed to mow larger areas. The MZK’s narrower 13-inch width is designed for compact spaces, making it easier to navigate around tight obstacles and small yards. You should choose the LawnMaster if your primary goal is speed on open grass, or the MZK if you need precision in confined areas. The difference in width directly impacts how many passes you will make across your lawn.
Power Source
The LawnMaster 20-Inch Manual Push Reel Mower operates without a motor, relying on manual effort to turn its steel blades. It requires no gas or batteries. In contrast, the MZK 13-Inch Brushless Cordless Lawn Mower uses a 20V battery system. This electric power source drives the blades automatically, reducing the physical exertion required from you. The MZK provides consistent cutting power regardless of your walking speed, whereas the LawnMaster’s cut quality depends on your pace. If you prefer zero maintenance and no fuel costs, the manual option works. If you want powered assistance, the battery mower is the choice.
Drive Type
The LawnMaster 20-Inch Manual Push Reel Mower is a push reel mower, meaning you must push it to engage the cutting mechanism. It has 10-inch front wheels to aid navigation. The MZK 13-Inch Brushless Cordless Lawn Mower is also a push mower but with electric blade rotation. Neither model features a self-drive system that pulls the mower forward. However, the MZK’s brushless motor handles the cutting work, allowing you to focus on steering. The LawnMaster requires you to provide all the kinetic energy for the cut. For easier maneuvering on slopes or thick grass, the powered blades of the MZK offer a practical advantage.
Cutting Height Adjustment
Both mowers offer a cutting height range from 1.3 inches to 2.6 inches. The LawnMaster 20-Inch Manual Push Reel Mower provides 9 distinct positions to fine-tune your cut. The MZK 13-Inch Brushless Cordless Lawn Mower offers 4 positions. More positions allow for greater precision in adjusting to seasonal grass growth or specific lawn health needs. The LawnMaster’s 9 settings give you more control over the exact grass length. The MZK’s 4 settings cover the essential range but offer less granularity. If you want to dial in a specific height with high precision, the LawnMaster has the edge.
Runtime and Power
The MZK 13-Inch Brushless Cordless Lawn Mower is powered by two 20V 4.0Ah lithium batteries, providing up to 30 minutes of runtime on a full charge. It includes a single-port charger. You can swap batteries to extend mowing time. The LawnMaster 20-Inch Manual Push Reel Mower has no battery or motor, so it does not have a runtime limit. Its operation is limited only by your physical stamina. The MZK’s brushless motor delivers 2800 RPM on Low and 3400 RPM on High for efficient cutting. For unlimited use without charging, the manual mower wins. For consistent power without fatigue, the battery mower is superior.
Which mower fits your yard best
Small yard owners needing quick electric power
The MZK mower uses a brushless motor with 2800 to 3400 RPM for efficient cutting. It runs on two 20V 4.0Ah batteries, giving you up to 30 minutes of runtime. The compact 13-inch deck and 13-pound weight make it easy to store and maneuver in tight spaces without the effort of pushing.
Users preferring zero-energy manual operation
The LawnMaster mower relies on a motorless manual reel design with five steel blades. It cuts with a scissor-like action that avoids tearing grass blades. You adjust the cut height across nine positions between 1.3 and 2.6 inches. This 20-inch wide deck covers more ground per pass without needing gas or batteries.
Buyers wanting bagging and safety features
The MZK model includes a 30-liter removable rear bag for easy grass collection. It features a dual-battery system allowing you to swap power sources to reduce downtime. A two-step safety start prevents accidental activation. The 13-inch width and 16-inch length make it highly compact for small to medium lawns.
Those seeking wide coverage with manual push
The LawnMaster offers a 20-inch cutting width to reduce total mowing time. It features 10-inch front wheels for easy navigation around the lawn. You can customize the cut height with nine distinct positions. The durable steel blades and orange finish provide a robust, environmentally friendly solution that requires no charging or fueling.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | LawnMaster 20-Inch Manual Push Reel Mower | Small, flat lawns seeking quiet, eco-friendly mowing | Check price of LawnMaster 20-Inch Manual Push Reel Mower on Amazon |
| 2 | MZK 13-Inch Brushless Cordless Lawn Mower | small lawns needing compact maneuverability | Check price of MZK 13-Inch Brushless Cordless Lawn Mower on Amazon |
The products compared
LawnMaster 20-Inch Manual Push Reel Mower
Best for: Small, flat lawns seeking quiet, eco-friendly mowing
- Cutting Width
- 20-Inch (what this guide is about)
- Power Source
- manual reel
- Drive Type
- push
- Cutting Height
- 1.3-2.6 in, 9 positions
- Application
- Lawn
- Dimensions
- 27.1 × 18.2 × 10.6 inches
View on Amazon: LawnMaster 20-Inch Manual Push Reel Mower Affiliate link
This is a 20-inch push reel mower that uses a manual, motorless design. It features five steel blades for a scissor-like cut without gas or batteries. You can adjust the cutting height across nine positions, ranging from 1.3 to 2.6 inches. The unit has 10-inch front wheels for maneuverability. It suits small, flat lawns where you prefer zero emissions and quiet operation.
Pros
- 20-inch cutting width
- Nine cutting height positions from 1.3 to 2.6 inches
- Motorless design requires no gas or batteries
- Five steel blades for clean cutting
- 10-inch front wheels for navigation
Cons
- Requires physical pushing power for all terrain
- Limited to 2.6-inch maximum cutting height
- Manual operation is tiring on thick grass
Good fit if
- You have a small, flat lawn under 5,000 square feet
- You want a zero-emission, quiet mowing experience
- You prefer mechanical simplicity over electronic components
Skip if
- You need to mow steep or uneven hills
- You have tall, thick, or wet grass
- You want a self-propelled or electric motor
Verdict: LawnMaster 20-Inch Manual Reel Mower is ideal for small, flat yards where you want a quiet, emission-free tool. It fits users who do not mind the physical effort of pushing a reel mower.
MZK 13-Inch Brushless Cordless Lawn Mower
Best for: small lawns needing compact maneuverability
- Cutting Width
- 13-Inch (what this guide is about)
- Power Source
- Cordless battery
- Voltage
- 20V
- Drive Type
- push
- Battery Capacity
- 4.0Ah
- Runtime
- Up to 30 minutes
View on Amazon: MZK 13-Inch Brushless Cordless Lawn Mower Affiliate link
This MZK mower features a 13-inch cutting width and a brushless motor with 3400 RPM on high. It runs on two 20V 4.0Ah batteries for 30 minutes of runtime. The 30L bag collects clippings, and you can adjust the height in four positions from 1.3 to 2.6 inches. It weighs 13 pounds. This compact electric mower suits small lawns where maneuverability matters more than wide coverage.
Pros
- Brushless motor reaches 3400 RPM for efficient cutting
- Dual 20V 4.0Ah batteries provide 30 minutes of runtime
- Lightweight 13-pound build aids maneuverability
- Includes 30L grass bag for easy cleanup
Cons
- 13-inch cutting width requires more passes than 20-inch models
- 30-minute runtime limits use on larger lawns
- Only four cutting height positions available
Good fit if
- You have a small lawn under 3,000 square feet
- You need a lightweight mower for easy storage
- You prefer a compact deck for tight spaces
Skip if
- You want to cover large areas quickly
- You need extended runtime beyond 30 minutes
- You prefer a wider 20-inch cutting deck
Verdict: MZK 13-Inch 20V Brushless Mower fits users with small yards who value a lightweight, compact design over wide cutting coverage.
Specifications side by side
| Spec | LawnMaster 20-Inch Manual Push Reel Mower | MZK 13-Inch Brushless Cordless Lawn Mower |
|---|---|---|
| Power Source | manual reel | Cordless battery |
| Cutting Width | 20 in | 13 in |
| Voltage | not stated | 20V |
| Drive Type | push | push |
| Battery Capacity | not stated | 4.0Ah |
| Runtime | not stated | Up to 30 minutes |
| Cutting Height | 1.3-2.6 in, 9 positions | 1.3 to 2.6 inches, 4 positions |
| Mowing Function | not stated | Bagging |
| Motor Type | not stated | Brushless |
| Application | Lawn | Lawn |
| Dimensions | 27.1 × 18.2 × 10.6 inches | 16 × 17 × 9 inches |
| Weight | not stated | 13 pounds |
| Size | 20-Inch | 13IN |
| Color | Orange | Red |
| Model | LMRM2001 | ET2601 |
Frequently asked questions
Is a 20-inch mower better than a 13-inch for large yards?
A 20-inch deck covers more ground per pass, which reduces total mowing time. The LawnMaster 20-Inch Manual Push Reel Mower offers this wider width. You will need to push the unit manually, which requires physical effort. This model suits flat lawns where you do not mind the exertion. It provides an emission-free option for quiet operation.
Can I use a 13-inch mower for small, tight spaces?
Yes, a 13-inch mower is ideal for compact maneuverability in small yards. The MZK 13-Inch Brushless Cordless Lawn Mower weighs just 13 pounds. Its compact dimensions allow you to navigate tight areas easily. The brushless motor provides efficient cutting power. You get up to 30 minutes of runtime on a single charge.
What is the difference between manual and electric drive types?
Manual drive mowers like the LawnMaster rely on your physical pushing power. Electric models like the MZK use a brushless motor for self-propelled cutting efficiency. The MZK runs on 20V batteries, offering consistent power without manual effort. Manual reels are quieter and emit no exhaust, while electric models provide faster cutting speeds.
How wide is the cutting deck on these mowers?
The LawnMaster 20-Inch Manual Push Reel Mower has a 20-inch cutting width. The MZK 13-Inch Brushless Cordless Lawn Mower features a 13-inch cutting width. A wider deck allows you to cut more grass in a single pass. This can significantly reduce the time needed to mow larger areas compared to a narrower deck.
Do these mowers require batteries or gas?
The MZK 13-Inch model uses two 20V 4.0Ah batteries for power. It does not require gasoline or oil. The LawnMaster 20-Inch model is a manual push reel mower. It operates without any fuel or batteries, relying entirely on human power. This makes the manual option completely emission-free.
Which mower is lighter and easier to store?
The MZK 13-Inch Brushless Cordless Lawn Mower weighs 13 pounds. It is lightweight and designed for easy handling. Its compact size also aids in storage. The LawnMaster 20-Inch model is larger and heavier due to its manual reel design. You will find the electric option easier to move around your property.
Is a brushless motor better than a manual reel?
A brushless motor, like the one in the MZK mower, offers consistent power and efficiency. It cuts at speeds between 2800 and 3400 RPM. A manual reel, like the LawnMaster, requires physical pushing but is quiet and eco-friendly. The choice depends on whether you prioritize cutting speed or emission-free operation.

