4 PCS Keyboard Spacebar Foam
5.0Editor score
Includes 1mm and 3mm options
Closed structure for sound absorption
Durable EVA material construction
In this guide
Keyboard foam has become an essential modification for enthusiasts seeking a quieter and more refined typing experience. Whether you own a budget board or a high-end custom, adding foam layers can significantly reduce hollow sounds and unwanted resonance.
We have carefully evaluated ten distinct foam solutions based on material quality, ease of installation, and acoustic performance. Our comparison covers full-case pads, switch dampeners, and specialized spacebar silencers to help you find the right fit for your setup.
Each product entry highlights key specifications, user ratings, and practical benefits to guide your decision. Please note that availability and pricing may change over time, so verify current details before making a purchase.
Top 3 Picks for Best Keyboard Foam
HONKID Keyboard Foam
4.7Editor score
LE-20 Poron material
Eliminates cavity noise
Compatible with 60-104 layouts
KBDiy NOVA60 Sound Dampening Foam Kit
4.8Editor score
Inoue Poron bottom and plate foam
Includes IXPE switch pad
PET sound-absorbing film included
Top 10 Best Keyboard Foam in 2026 Compared
The following table provides a side-by-side overview of the top ten keyboard foam products. Each entry lists core specifications to help you quickly identify the best option for your specific mechanical keyboard layout and acoustic goals.
ProductsSpecificationsEditor scorePrice
Editor's Choice
HONKID Keyboard Foam
Material: LE-20 Poron
Thickness: 3mm
Layout: 60/61/64/68/87/104
Dimensions: 50x15x0.3cm
4.7Editor score
Editor's Choice
4 PCS Keyboard Spacebar Foam
Material: EVA Foam
Thickness: 1mm and 3mm
Spacebar: 6.25u
Quantity: 4 pieces
5.0Editor score
Best Premium
KBDiy NOVA60 Sound Dampening Foam Kit
Kit: Full Set
Bottom: 2.0mm Inoue Poron
Includes IXPE Switch Pad
Includes PET Film
4.8Editor score
Keyboard Foam for Mechanical Keyboard Bottom
Material: LE-32W Poron
Thickness: 3mm
Layout: 61/64/87/100/104/108
Includes Plastic Pry Bar
5.0Editor score
DUROCK 0.5mm Poron Switch Pads
Material: Poron
Thickness: 0.5mm
Count: 120pcs
Adhesive backing included
4.7Editor score
YMDK Keyboard Sound Dampening Foam
Material: Poron
Set: 3-piece
Layout: 61 and 64 keys
Direct install without adhesive
3.5Editor score
4 Pcs 6.25u Keyboard Spacebar Foam
Material: EVA
Thickness: 1mm and 3mm
Spacebar: 6.25u
Waterproof and durable
4.4Editor score
ZCZQC 120pcs DUROCK Keyboard Switch Pads
Material: PORON
Thickness: 0.5mm
Count: 120pcs
Adhesive backing
4.9Editor score
Switch Sound Dampeners Sheet Keyboard Soft Landing Pads
Layout: 84 keys
Thickness: 3mm
No adhesive required
Eliminates cavity sound
4.0Editor score
PATIKIL 5 x 17 x 0.16 Inch Keyboard Foam
Material: Cotton Sponge
Size: 5×17 inches
Thickness: 0.16 inch
Modular design
4.0Editor score
1. HONKID Keyboard Foam – Best Overall Keyboard Foam
HONKID Keyboard Foam
LE-20 Poron material
Eliminates cavity noise
Compatible with 60-104 layouts
Dimensions 50x15x0.3cm
The HONKID Keyboard Foam is a highly rated solution for mechanical keyboard sound dampening. It features LE-20 Poron material designed to eliminate noise between the PCB and bottom case. Users appreciate its ability to completely block echo noise for a refined typing sound.
Pros
- High-quality sound-absorbing material
- Versatile fit for most keyboards
- Easy to cut for custom layouts
- Effectively blocks echo noise
Cons
- Requires manual cutting for fit
- May need trimming for unique cases
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This foam is suitable for 60, 61, 64, 68, 87, and 104 layout keyboards. The material is a sound absorber that targets the cavity effectively. The dimensions of 50cm by 15cm by 0.3cm provide ample coverage for most standard mechanical boards.
While the foam is designed for most mechanical keyboards, you may need to cut it to fit specific cases. The product includes indentation for easy cutting to ensure a precise fit. This flexibility makes it adaptable for various board sizes without excess waste.
Enthusiasts seeking a reliable and affordable foam upgrade will find this product ideal. It is an excellent starting point for those new to keyboard modding. The strong rating reflects its consistent performance in reducing unwanted noise.
Superior Sound Absorption
The LE-20 Poron material acts as a dedicated sound absorber. It effectively blocks the keyboard from echo noise.
Easy Customization
Indents are provided for easy cutting. You can solve minor size errors by trimming the foam to match your case.
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2. 4 PCS Keyboard Spacebar Foam – Best Budget Keyboard Foam
4 PCS Keyboard Spacebar Foam
Includes 1mm and 3mm options
Closed structure for sound absorption
Durable EVA material construction
Adhesive backing included
This four-piece spacebar foam set offers exceptional value for targeting the loudest part of any keyboard. It includes pads in both 1mm and 3mm thicknesses to provide flexibility for different setups. The EVA material features a closed structure that effectively absorbs sound and reduces shock.
Pros
- Excellent value for spacebar damping
- Flexible thickness options included
- Closed structure reduces shock
- Compression-resistant and durable
Cons
- Specific to spacebar keycaps
- May require careful alignment
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Designed for 6.25U spacebar keycaps, these pads create a softer and more pleasant typing experience. The closed structure enhances sound quality by making your keyboard quieter. Installation is effortless with adhesive backing that secures the foam between the PCB and positioning plate.
While specific to the spacebar, this product is durable enough for daily use. It is compression-resistant and designed to withstand regular pressure. Users can also DIY cut the foam to fit steel satellite axes or stabilizing poles perfectly.
Keyboard owners looking for a low-cost way to improve the spacebar sound will love this kit. It ensures safe use and compatibility with various mechanical keyboards. The perfect rating highlights its effectiveness and reliability.
Flexible Thickness Options
Choose between 1mm and 3mm thickness for different setups. This flexibility ensures optimal performance.
Sound Absorption Design
The closed structure absorbs sound and reduces shock effectively. This creates a softer typing experience.
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3. KBDiy NOVA60 Kit – Best Premium Keyboard Foam
KBDiy NOVA60 Sound Dampening Foam Kit
Full Set Kit
Inoue Poron bottom and plate foam
Includes IXPE Switch Pad
Includes PET sound-absorbing film
The KBDiy NOVA60 Sound Dampening Foam Kit provides a comprehensive solution for 60% custom keyboards. It includes a 2.0mm thick Inoue Poron bottom foam, plate foam, IXPE switch pad, and PET sound-absorbing film. This combination ensures thorough sound management.
Pros
- Complete dampening solution included
- High-end Inoue Poron material
- Includes switch pad and film
- Optimized for 60% custom builds
Cons
- Limited to 60% layouts
- Higher price point
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Inoue Poron is known for its superior acoustic properties compared to standard foams. By using both bottom and plate layers, you can achieve a very clean sound profile. The added IXPE switch pad helps buffer noise at the source.
The inclusion of a PET sound-absorbing film adds another layer of isolation. This premium kit is ideal for those who want a complete package without sourcing individual components. It is specifically designed for 60% builds which often have unique internal spaces.
If you are building a high-end 60% keyboard, this kit offers top-tier components. The variety of materials included ensures you can address different noise sources. It represents a significant upgrade over basic single-layer solutions.
Premium Inoue Poron
Uses high-end Inoue Poron for bottom and plate layers. This material delivers superior acoustic performance.
Complete Dampening
Includes bottom foam, plate foam, switch pad, and film. This covers all major noise sources.
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4. Keyboard Foam for Mechanical Keyboard Bottom – Top Rated Keyboard Foam
Keyboard Foam for Mechanical Keyboard Bottom
Material: LE-32W Poron
Thickness: 3mm
Layout: 61/64/87/100/104/108
Includes Plastic Pry Bar
This keyboard foam utilizes LE-32W Poron, known for its micro-fine and homogeneous cell structure. It features excellent resistance to compression deformation, making it very suitable for the bottom of your keyboard. The product is 3mm thick to fill gaps effectively.
Pros
- LE-32W Poron material quality
- Comes with pry bar tool
- High elasticity for noise reduction
- Soft material for clear sound
Cons
- Requires cutting with scissors
- Not pre-cut for specific layouts
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It is suitable for 61, 64, 87, 100, 104, and 108 layout keyboards. The foam reduces noise and vibration levels while improving sound quality. Poron is softer than EVA, which results in a sound that is clearer and less boxy.
The package includes a plastic pry bar to help you disassemble your keyboard easily. This adds significant value for modders who might not have specialized tools on hand. The dimensions are about 42.8×12.4×0.3cm, providing ample material.
Users who want a simple yet effective way to reduce vibration will appreciate this foam. It is designed for filling gaps in mechanical keyboards. The included tools make the entire process smoother for beginners and experienced builders.
LE-32W Poron Material
Made of LE-32W Poron for excellent resistance to deformation. It is softer than EVA for clearer sound.
Included Tools
A plastic pry bar is included to help disassemble your keyboard. This makes installation easier.
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5. DUROCK Switch Pads – Top Rated Keyboard Foam
DUROCK 0.5mm Poron Switch Pads
Material: Poron
Thickness: 0.5mm
Count: 120pcs
Adhesive backing included
DUROCK switch pads are designed to buffer the force between the switches and the PCB. They are pre-cut with a mild adhesive backing to ensure they stay in place. This product is compatible with both solder type and hotswap PCBs.
Pros
- Pre-cut with mild adhesive backing
- Compatible with solder and hotswap
- Clean and simple installation
- Per switch RGB shine through
Cons
- Requires placing 120 individual pads
- Time-consuming for large boards
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The installation process is clean and simple. You just peel from the backing and place on your PCB. The cutouts are precise, ensuring compatibility with per switch RGB shine through and both 3-pin and 5-pin switches.
This foam targets the switch level directly, adding a layer of cushioning to the bottom of each switch housing. It is an effective way to reduce hollow sounds at the source. The high count of 120 pieces ensures you have enough for standard layouts.
If you prefer a switch-level dampening solution, these pads are an excellent choice. They are reliable and easy to work with for modders. The adhesive backing simplifies the process significantly compared to loose foam sheets.
Easy Installation
Pre-cut with mild adhesive backing for easy placement. Just peel and place on your PCB.
RGB Compatible
Compatible with per switch RGB shine through. Ensures no interference with lighting.
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6. YMDK Keyboard Sound Dampening Foam – Top Rated Keyboard Foam
YMDK Keyboard Sound Dampening Foam
Material: Poron
Set: 3-piece
Layout: 61 and 64 keys
Direct install without adhesive
This kit includes Poron foam between PCB board, under PCB, and under switch for comprehensive dampening. It reduces noise and vibration when typing while increasing sound thickness. It also reduces keyboard resonance effectively.
Pros
- Three-piece set for full coverage
- Made of sound-absorbing Poron
- Direct install without adhesive needed
- Does not affect light position
Cons
- Mixed user ratings
- Limited to 61 and 64 layouts
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Made of Poron material, it absorbs residual noise inside the keyboard and isolates sound from spreading outwards. It reduces vibration transmission between the keyboard and the desktop. It installs directly between PCB and positioning board without adhesive.
While it is compatible with 61 keys mechanical keyboard layouts, it can also adapt to hot-swap and welding keyboards. It ensures the light position of the keyboard is not affected. This makes it a versatile choice for gasket-mounted boards.
Users seeking a three-part solution to target multiple noise points will find this useful. The lack of adhesive needed simplifies the installation process. It offers a good balance of coverage for specific layout sizes.
Three-Part Solution
Includes foam for PCB, under PCB, and under switch. This covers multiple noise sources.
Adhesive-Free Install
Install directly without adhesive. It does not affect the light position of the keyboard.
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7. 4 Pcs Spacebar Foam – Top Rated Keyboard Foam
4 Pcs 6.25u Keyboard Spacebar Foam
Material: EVA
Thickness: 1mm and 3mm
Spacebar: 6.25u
Waterproof and durable
This package includes four pieces of keyboard foam suitable for 6.25U spacebar. You get two pieces of EVA material in 3mm thickness and 1mm thickness respectively. The spacebar keycap foam improves the sound effect of the space cavity.
Pros
- Two thickness options included
- Shock absorption and sound insulation
- Waterproof and durable material
- Safe and non-toxic
Cons
- Spacebar specific usage
- Adhesive backing may require care
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These foams adopt a closed structure with good sealing for sound insulation. They effectively absorb sound and reduce shock. The soft and resilient material can fill and improve the cavity inside the spacebar cap to increase sound thickness.
The foam is waterproof, compression resistant, and not easily deformed. It also has good heat resistance which improves durability. The backing allows you to secure the foam between the pcb and positioning plate easily.
This product is safe for use and contains no plasticizers. It is suitable for DSA, OEM, and other height keycaps. It is an affordable way to tackle the noisy spacebar issue on many keyboards.
Closed Structure Design
Adopt a closed structure for sound insulation. This effectively absorbs sound and reduces shock.
Durable Material
Waterproof and compression resistant for long-term use. Safe and non-toxic for your keyboard.
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8. ZCZQC Switch Pads – Top Rated Keyboard Foam
ZCZQC 120pcs DUROCK Keyboard Switch Pads
Material: PORON
Thickness: 0.5mm
Count: 120pcs
Adhesive backing
These switch pads feature PORON cutouts to cushion the force between the switch and PCB. They are pre-cut with mild adhesive backing for easy application. They work with solder types and hot swappable PCBs.
Pros
- Poron cutouts for switches
- Compatible with solder and hotswap
- Compact and smooth design
- High user rating
Cons
- Manual application for all switches
- Adhesive backing requires precision
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The package includes 120pcs which is ideal for full-size or 75% boards. The design is simple with a smooth surface that is translucent and beautiful. Every detail is clearly visible to ensure a clean look.
Just peel off the backing and place on your PCB for a quick install. This product is designed to reduce switch noise effectively. The compact design ensures it does not interfere with other components.
Enthusiasts who value precision and material quality will find this appealing. The high rating suggests consistent performance across multiple builds. It is a reliable choice for standard switch dampening needs.
Cushioning Design
Features PORON cutouts for switches. This cushions the force between the switch and PCB.
Clean Appearance
Compact with a smooth surface. It is translucent and beautiful with visible details.
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9. Switch Sound Dampeners Sheet – Top Rated Keyboard Foam
Switch Sound Dampeners Sheet
Layout: 84 keys
Thickness: 3mm
No adhesive required
Eliminates cavity sound
This product is a switch sound dampeners sheet designed to eliminate cavity sound. It increases sound thickness and reduces keyboard resonance. It is placed between the PCB and the steel plate without needing adhesive.
Pros
- Eliminates cavity sound effectively
- No adhesive required for placement
- 3mm thickness for standard plates
- Increases sound thickness
Cons
- Layout specific to 84 keys
- May have fitting deviations
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The 3mm thickness is designed based on a standard 1.5mm positioning plate. Regardless of whether your switch is welded or hot-plugged, this pad is suitable for standard spacing. It is a must for keyboard lovers to DIY.
While it fills the entire keyboard, you should check carefully before placing an order. Some holes or gaps may be caused by design differences between brands. It cannot be guaranteed to be fully fitted for every custom board.
If you have an 84-key layout board, this sheet can greatly improve your sound profile. It effectively eliminates resonance and makes the sound thicker. It offers a straightforward way to dampen the PCB to plate area.
Cavity Sound Reduction
Eliminates cavity sound and reduces resonance effectively. It increases the sound thickness of your board.
No Adhesive Needed
Between the PCB and steel plate without adhesive. The light position is not affected.
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10. PATIKIL Keyboard Foam – Top Rated Keyboard Foam
PATIKIL Keyboard Foam
Material: Cotton Sponge
Size: 5×17 inches
Thickness: 0.16 inch
Modular design
This keyboard foam is made of sound-isolating sponge material with a fine and uniform pore structure. It has excellent resistance to compression deformation. It can effectively reduce vibration and typing noise.
Pros
- Fine and uniform pore structure
- Good resistance to compression
- Reduces vibration and noise
- Modular for customization
Cons
- Requires cutting to fit
- Manual measurement errors possible
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Designed specifically for hot-swappable mechanical keyboards, it fills the gap between the switches and the PCB to reduce noise. It isolates sound from spreading outward. The size is 4 x 123.8 x 428.5mm.
The back of the keyboard silence has a dividing line design to simplify cutting. Use scissors to cut according to the keyboard specifications for easy use. It is suitable for a variety of keyboard layouts.
Please confirm that the foam size matches the internal layout of your keyboard. The size is manually measured and there may be errors. For hobbyists who need flexible modular dampening, this is a strong contender.
Sound Isolating Material
Made of sponge material with fine and uniform pore structure. It reduces vibration and typing noise.
Modular Cut
Features a dividing line design to simplify cutting. Use scissors to cut according to your keyboard.
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Buying Guide – How to Choose the Best Keyboard Foam
Choosing the right keyboard foam depends on your specific goals and hardware. Here are the key factors to consider before making your purchase.
Material Type
The material used in your foam is the most critical factor for acoustic performance. Poron is generally preferred over EVA or cotton due to its superior density and elasticity. It absorbs vibrations more effectively and does not bottom out as quickly under pressure.
Look for LE-20 or LE-32W Poron for the best results in sound dampening.
Thickness
Thickness determines how much space the foam will occupy inside your case. Common options range from 1mm to 3mm. Thicker foam provides more vibration absorption but requires a larger internal gap.
Ensure your case has enough clearance before purchasing thicker foam to avoid assembly issues.
Layout Compatibility
Keyboard layouts vary significantly, so a foam that fits one board might not fit another. Some products are pre-cut for 60% boards while others are full sheets requiring manual cutting.
Check the product dimensions and compatibility list to ensure it matches your keyboard size and shape.
Installation Ease
Ease of installation can affect your overall experience. Some foams come with adhesive backing which simplifies placement but can be messy if you make a mistake. Others require no adhesive but may shift during use.
Products including tools like pry bars can save you time and frustration during the disassembly process.
Location Target
Different foams target different parts of the keyboard such as the bottom case, switch plate, or stabilizers. Bottom foam reduces the hollow sound of the case, while switch pads target the sound at the source.
Determine if you want to dampen the whole board or just specific parts like the spacebar or switches.
Durability
Over time, foam can compress and lose its effectiveness. High-quality materials like Poron resist deformation better than generic foams. This ensures your keyboard sounds the same months after installation.
Investing in durable foam will maintain the acoustic improvements you seek for a longer period.
How to Use and Care for Your Keyboard Foam
Start by disassembling your keyboard completely. Remove the keycaps, stabilizers, and PCB from the case carefully. This step ensures you have full access to the internal components where the foam needs to be placed.
Cut the foam to size if required. Many full-sheet foams include guidelines but precise measurements are key. Use sharp scissors to ensure clean edges that fit snugly against the walls of the case.
Place the foam between the PCB and the bottom plate. For switch pads, peel the backing and stick them onto the PCB before installing the switches. Ensure the foam does not interfere with any screws or connectors.
Frequently Asked Questions
What is keyboard foam used for?
Keyboard foam is used to dampen sound and reduce vibration within the keyboard case. It fills empty cavities between the PCB and the case bottom to eliminate hollow sounds and create a deeper, more solid typing noise.
Does foam make mechanical keyboards quieter?
Yes, foam reduces sound by absorbing vibrations. It prevents hollow resonance inside the case and helps reduce the sharp clicking noise of switches. The result is a quieter and often more pleasant typing sound.
Is Poron foam better than EVA foam?
Poron foam is generally considered superior because it has a finer cell structure and better compression resistance. It does not bottom out as easily as EVA and provides more consistent sound dampening over time.
Can I reuse foam after removing it?
Most foams can be reused but adhesive-backed foams may lose their stickiness. Non-adhesive sheets can be cleaned and repositioned easily. It is best to check the specific product details for reusability.
Do I need to cut foam for my keyboard?
It depends on the product. Some kits come pre-cut for specific layouts while others are full sheets. If using a sheet, you must measure and cut it to match your keyboard case dimensions precisely.
Will foam affect RGB lighting on my keyboard?
Most foams are opaque so they block RGB light from passing through. However, some transparent PET films allow RGB shine through. Always check if the foam is transparent if you want RGB visibility through the switches.
Final Thoughts on Choosing the Best Keyboard Foam
We reviewed ten top options for keyboard foam ranging from budget spacebar pads to premium full kits. The HONKID foam offers great value while the KBDiy kit delivers high-end performance for custom builds.
Prioritize material quality like Poron for the best long-term results. Ensure the thickness matches your case clearance and that the layout fits your specific board size to avoid modification issues.
Prices and stock levels fluctuate frequently so check current availability on the provided links before purchasing. The right foam upgrade can transform your typing experience significantly.