Best Mulching Push Mowers for Thick Grass Cuts
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A mulching push mower cuts grass and then chops the clippings into fine pieces that fall back into the lawn instead of being bagged or thrown out the side. For thick grass, the mulching setting works best when the mower has enough deck width, enough engine or motor power, and a height range you can raise for long growth. The models below come from our product data. Each block uses only the facts its listing states, and where the listing is silent or conflicting, we say so.
Quick answer
- For a yard with thick, tall grass, choose a mower with a motor or engine the listing describes as strong, and a cutting height range that goes up to at least 3 inches.
- For a power cord and a steady supply of electricity, a corded mower is listed here with 13 amps and a 20-inch deck.
- For a gas engine with a larger deck, two BILT HARD gas models in this roundup list 21-inch decks, 144cc and 201cc engines.
- For cordless use, two 40V models list mulching and bagging, with runtimes the listings state as up to 30 or 35 minutes.
What “mulching” really asks of a mower
Mulching is not just a blade shape. A mulching deck holds grass in the cutting chamber for a second or two, so the blade can chop clippings repeatedly. That takes time and power. When grass is long, wet, or thick, the mower has to lift and cut more material per pass. A mower that struggles will bog down, leave clumps, or stall.
That is why three things matter most: the motor or engine, the cutting height, and the deck. A higher deck with more power handles tall grass better. A lower deck with weak power may cut a clean line on short lawns but struggle on thick growth. Many listings in this roundup include a mulching plug or a mulch-ready deck, which tells you the manufacturer has built the deck for that job.
Power source: corded, gas, or cordless
Each power source has a different trade-off. The listings in this roundup cover all three.
Corded electric. A cord gives steady power with no fuel and no battery to charge. The main limit is reach: you need an outlet near the lawn and a cord that stays clear of the blade. The CRAFTSMAN model below is corded.
Gas. A gas engine gives the most freedom from outlets and the most power for a given deck size. You add fuel and oil, and you must keep the engine maintained. The two BILT HARD gas models and the PowerSmart gas listing show this approach. The BILT HARD models here are gas-powered mowers with 21-inch decks.
Cordless. Battery mowers are quiet and need no fuel, but runtime limits the size of the yard you can finish in one session. Two cordless models here list up to 30 or 35 minutes of battery life, and both list lawn size limits.
If your lawn is large, a gas mower or a corded mower with a long cord may save time. If your lawn is small and you want quiet operation, a cordless model fits better.
Deck size and cutting height
A wider deck covers more ground in one pass, which cuts mowing time. The listings in this roundup range from 14 to 21 inches for the models we compare, with the widest decks in the gas and corded groups. Keep in mind that a wider deck needs more power to mulch well.
Cutting height matters for thick grass. A higher setting leaves more blade on the plant, so the grass recovers faster and the mower does not have to cut as much at once. The listings state these ranges:
- CRAFTSMAN CMEMW213: 1.5 inches to 4 inches, adjusted with one lever.
- BILT HARD gas 21-inch (B0BTPJFBPH): 1.0 to 3.0 inches in one bullet, and 1.2 to 3.75 inches in the specs section.
- BILT HARD 201cc 21-inch (B0DCFMS5F2): 1.2 to 3.75 inches.
- BILT HARD 40V 18-inch (B0HGLVYS4B): 1.0 to 3.0 inches.
- Greenworks 40V 16-inch (B00BBQVL5U): 1.25 to 3.75 inches in the specs section.
Where the listing gives two ranges, check the manual or the package before you rely on the upper number. For thick grass, a model that goes to 3.75 inches or higher gives you more room than one that stops at 3 inches.
Materials, weight and build
Deck material affects both strength and weight. Steel decks are heavier. Plastic decks are lighter and easier to push, but the listings do not claim the same toughness for plastic. The listings in this roundup show a range.
- CRAFTSMAN CMEMW213 is plastic, with a listed weight of 20.8 pounds.
- BILT HARD gas 21-inch describes a steel deck. Its listing gives a weight of 73.8 pounds for the 201cc model, which is heavier than most push mowers.
- BILT HARD 40V 18-inch lists a weight of 58 pounds, which includes the batteries.
- Greenworks 40V 16-inch lists 37.5 pounds and says it is 35 percent lighter than steel deck mowers.
Weight matters on slopes and for anyone who has to lift the mower onto a trailer or into a shed. Lighter mowers are easier to push and turn, but heavier ones often have more mass to carry through thick grass.
Mulching, bagging and discharge
Most models here offer more than one mode. The listings describe three common setups:
- Mulch. The clippings are chopped and left on the lawn. Some listings include a mulching plug to block the discharge chute.
- Bag. The clippings go into a rear collection bag. The listings state bag sizes for some models, such as the 13-gallon bag in the BILT HARD 40V kit.
- Side discharge. The clippings are thrown to the side through a chute.
For tall grass, raise the deck, cut once, then lower it and cut again on a second pass. The listings in this roundup do not give a rule for how much grass to remove per pass, so use the height setting to control it.
Product 1: CRAFTSMAN Electric Push Lawn Mower (CMEMW213)
The CRAFTSMAN listing describes a corded electric push mower with a 20-inch deck and a 13-amp motor. It states that the motor is designed to help power through tall grass. The mower offers 3-in-1 mulching, bagging, and side discharge, and includes a collection bag and a side discharge chute. The listing says a high-efficiency blade improves cutting performance.
Height is set with a single lever that adjusts from 1.5 to 4 inches. That range gives you a generous top height for long grass. The listing gives a product weight of 20.8 pounds and a product size of 33.8 inches deep by 21.95 inches wide by 15.06 inches tall. It lists a 3-year limited warranty and points to a warranty section for details.
This mower suits a small to medium yard with an outlet close by. The listing does not state a runtime, since the cord supplies the power. Keep the cord clear of the blade, and check the extension cord rating against the amp draw listed. For mulching thick grass, the 13-amp motor and 4-inch top height are the key facts from the listing.
Product 2: BILT HARD 21-inch gas push mower (B0BTPJFBPH)
This BILT HARD model has a 21-inch steel deck and a 144cc four-cycle engine. The listing states 3.4 horsepower and 5.75 foot-pounds of torque, with a 27.1 fluid ounce fuel tank. It describes a three-in-one design for rear bagging, mulching, and side discharge, and includes a mulching plug in the box. The listing says the mower comes with a grass bag, a side discharge chute, engine oil, and the tools for setup.
The height description conflicts. One bullet gives six cutting positions from 1.0 to 3.0 inches, the title refers to 8 positions, and the specs section lists 10 positions with a range of 1.2 to 3.75 inches. Confirm which adjustment your unit has before buying, since the upper height matters for thick grass. The listing also gives oversized 10-inch front and rear wheels for traction.
This model fits a medium to large yard where you want gas power and do not want to deal with a cord or battery. The listing describes the mower as built for medium to large residential yards. The engine is a four-cycle design, so you do not mix oil and gas, which the listing states.
Product 3: BILT HARD 201cc 21-inch push mower (B0DCFMS5F2)
This model uses a 201cc four-stroke OHV engine that the listing says delivers 9.0 foot-pounds of torque. The deck is a 21-inch three-in-one steel design with mulching, side discharge, and rear bagging. The listing says there is no choke and no primer, which it presents as an easy-start feature. Height is set by a single lever that the listing says adjusts four wheels together, from 1.2 to 3.75 inches in ten positions.
The wheels are 9.5 inches at the rear and 8 inches at the front, with double ball-bearing hubs and a foam-wrapped angled grip. The specs section lists the weight as 73.8 pounds, and the dimensions as 62.5 inches deep by 26.3 inches wide by 41 inches tall. The deck material is listed as alloy steel. The warranty bullet describes customer support but does not state a term, so check the package for the warranty length.
This is the more powerful of the two BILT HARD 21-inch gas listings in this roundup, based on the torque figure, but the listing does not give a horsepower rating for it. Its 73.8-pound weight means it is heavy to push, so it suits a flat, dry lawn better than a steep one.
Product 4: BILT HARD 18-inch 40V cordless mower (B0HGLVYS4B)
This cordless kit includes the mower, two 20V 5.0Ah batteries, a dual charger, and a 13-gallon grass collection bag. The listing describes a 40V system built from two 20V batteries. It says runtime is up to 30 minutes depending on grass and usage, and that the mower is ideal for lawns up to one-eighth of an acre. The deck is 2-in-1 for mulching and rear bagging.
The listing describes a high-efficiency brushless motor that gives strong, consistent blade speed for thick grass. It has six cutting height positions from 1.0 to 3.0 inches. The listing gives the cutting width as 18 inches, the weight as 58 pounds including the batteries, and a maximum height of 3 inches. Because the top height is 3 inches, this model is less suited to very tall growth than the gas and corded models above.
This kit works well for small lawns with thick patches, where battery runtime covers the job. Plan to charge the second battery while you mow, or cut in sections if your lawn is near the one-eighth acre limit the listing gives.
Product 5: Greenworks 40V 16-inch push mower with battery and charger (B00BBQVL5U)
The Greenworks listing describes a 40V cordless mower with a 16-inch deck, a 4.0Ah battery, and a charger. The bullets say it cuts up to one-third of an acre on a fully charged battery, though the listing notes that results vary with grass condition and technique. The specs section gives a battery average life of 35 minutes and a cutting width of 15.67 inches.
The mower is listed as 35 percent lighter than steel deck mowers. Its weight in the specs section is 37.5 pounds. It has a single-lever height adjustment with five positions, and the specs give a range of 1.25 to 3.75 inches. The mower mulches and bags through a two-in-one system. The listing includes a three-year limited warranty on the tool and battery, and says the battery works with more than 75 Greenworks 40V tools.
The battery platform is the key point. If you already own Greenworks 40V tools, this mower can share batteries with trimmers, blowers, and chainsaws that the listing says are compatible. The mower is best for medium lawns, since the listing’s one-third acre figure assumes conditions that may vary.
Comparison at a glance
The table lists the facts from each listing. “Not stated” means the listing does not give that value.
| Model | Power | Deck | Height range | Weight | Warranty |
|---|---|---|---|---|---|
| CRAFTSMAN CMEMW213 | Corded, 13 amp | 20 in | 1.5 to 4 in | 20.8 lb | 3-year limited |
| BILT HARD B0BTPJFBPH | Gas, 144cc | 21 in steel | 1.0 to 3.0 in (bullet); 1.2 to 3.75 in (specs) | Not stated | Not stated |
| BILT HARD B0DCFMS5F2 | Gas, 201cc | 21 in steel | 1.2 to 3.75 in | 73.8 lb | Not stated |
| BILT HARD B0HGLVYS4B | 40V cordless, up to 30 min | 18 in | 1.0 to 3.0 in | 58 lb | Not stated |
| Greenworks B00BBQVL5U | 40V cordless, 4.0Ah | 16 in (15.67 in cut) | 1.25 to 3.75 in | 37.5 lb | 3-year limited |
Review: CRAFTSMAN CMEMW213 in depth
If you want one model to study in detail, the CRAFTSMAN listing gives the most complete set of facts for a corded mulching mower. It states the motor size, the deck size, the height range, the weight, the included parts, and the warranty term. For a buyer who has an outlet near the lawn, those facts answer most questions before purchase.
The listing’s strongest points are the 13-amp motor and the 20-inch deck. The motor size is the spec most relevant to thick grass. The 4-inch top height lets you raise the deck for long growth and then cut back down, which is the standard approach for mulching thick lawns. The three modes give flexibility: mulch when the grass is dry, bag when you need the lawn cleaner, or discharge to the side when the mulch would be too thick.
The listing’s weak point is the absence of a runtime figure, which is normal for a corded mower but means you must plan your cord route. The product is also plastic, which keeps the weight down to 20.8 pounds but does not carry the impact protection a steel deck offers. If you mow over rocks or roots, a steel deck may suit you better. Keep the cord clear of the blade at all times.
Two close alternatives are in the roundup. The BILT HARD 201cc model offers a steel deck and a higher listed torque, but it is much heavier. The Greenworks model offers cordless convenience and a shared battery platform, but a smaller deck and a shorter run time on a single battery.
Mistakes to avoid
- Mulching wet grass. Wet clippings clump and clog the deck. Wait for the grass to dry before mulching.
- Cutting too much grass in one pass. Raise the height first, then cut again at the lower setting.
- Ignoring the height range. A model that stops at 3 inches will leave long grass rough.
- Buying on deck width alone. A wide deck needs power to mulch, so check the motor or engine too.
- Skipping the battery check on cordless models. Confirm the battery count and charger before you order, because the kits differ.
- Using the mulching plug on a bagging setup. Remove it when you want the bag to fill.
FAQ
Do all push mowers mulch?
No. Some mowers include a mulching plug or a mulch-ready deck, and others are bag-only or side-discharge only. The listings here state which modes each model supports, so check before you buy.
Is a corded or gas mulching mower better for thick grass?
Either can work. A corded model gives steady power with no fuel, but you need an outlet nearby. A gas model gives more freedom and a larger deck, but it adds fuel and maintenance. The listing details matter more than the category, so compare motor size, deck, and height range.
How long does a cordless mulching mower run?
The BILT HARD 40V listing says up to 30 minutes depending on grass and usage. The Greenworks listing gives a battery average life of 35 minutes in its specs section. Both figures depend on conditions, so plan for a smaller area than the lawn size suggests.
What cutting height should I use for thick grass?
Set the deck high, then cut once. The listings show top heights from 3 inches up to 4 inches. For the tallest growth, the CRAFTSMAN model’s 4-inch top setting gives the most room. Lower the deck and cut again once the grass is shorter.
Why do some listings give two height ranges?
The BILT HARD gas listing shows one range in a bullet and a different range in its specs section. Check the manual or the package to confirm which adjustment the mower has before you buy.
Is a steel deck better than plastic?
The BILT HARD gas listings describe steel decks, and the CRAFTSMAN listing describes plastic. Steel is heavier; plastic is lighter. Choose by the yard you have, not the material alone.
Bottom line
For thick grass, pick a mulching push mower with a motor or engine the listing describes as strong, a deck that suits your yard size, and a top cutting height of at least 3 inches. A corded CRAFTSMAN model is the most complete listing for an outlet-equipped yard. A BILT HARD gas model fits a larger lawn that needs gas power. A cordless kit fits a smaller lawn where runtime covers the job.
Related reading
For a broader comparison of blade styles, read Best Blade Style for Lawn Mowers: Rotary, Mulching, Reel or Flail. If you want a corded option with a different deck, 13 in 11 Amp Corded Electric Walk Behind Push Mower Options covers that category.
