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The least expensive reliable route is a compact bartop cabinet built from MDF around a Raspberry Pi, a reused HDMI monitor and a basic two-player USB encoder kit. Plan the monitor and control-panel dimensions before cutting, use the Pi model’s correctly rated power supply, and budget for controls, audio, storage and hardware—not just the computer. A 2026 independent estimate puts a representative bartop build at about $100–$130 in parts, but your total can be lower with a donated display and tools or higher with new components, premium controls and artwork.
What a budget arcade cabinet should include
A practical home cabinet has five systems that must work together:
- Cabinet: side panels, base, top, rear brace, front and control-panel panels, fasteners and a finish.
- Computer: a Raspberry Pi board, model-appropriate power supply, microSD card and display cable.
- Display: an HDMI-compatible LCD monitor sized to fit the cabinet opening.
- Controls: joysticks, arcade buttons and a USB encoder that converts their switch signals into gamepad inputs.
- Audio and accessories: speakers or a small amplifier, USB storage if needed, power strip or covered power distribution, ventilation and cable-management parts.
RetroPie’s setup guidance also expects a monitor, display cable, USB flash drive and controller during installation. Treat the flash drive as a transfer tool rather than permanent cabinet hardware. Load only games, ROMs and homebrew you are legally entitled to use; an emulator or tutorial does not grant permission to copy copyrighted games.
How much does a DIY arcade cabinet cost?
Pi Beginners’ 2026 bartop estimate is approximately $100–$130 in parts for a Raspberry Pi 4, used 15-inch monitor, two encoder kits, two joysticks, 14 buttons, an amplifier and speaker, MDF, microSD card and basic hardware. It is an illustrative estimate, not a fixed retail price: local sheet-goods prices, second-hand availability, sales, shipping and whether you already own tools can move the total substantially.
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- CanaKit Premium High-Gloss Raspberry Pi 4 Case with Integrated Fan Mount, CanaKit Low Noise Bearing System Fan
- CanaKit 3.5A USB-C Raspberry Pi 4 Power Supply (US Plug) with Noise Filter, Set of Heat Sinks, Display Cable - 6 foot (Supports up to 4K60p)
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| Cost area | Budget approach | What raises the price |
|---|---|---|
| Computer and storage | Use a Raspberry Pi already on hand, a correctly sized microSD card and the specified supply. | Buying a newer board, larger storage or a replacement power supply. |
| Display | Reuse a 15-inch-or-similar HDMI/LCD monitor in good condition. | New display, unusual aspect ratio, integrated speakers or a panel that needs an adapter. |
| Controls | One basic two-player USB encoder kit with generic joysticks and buttons. | Premium joysticks, quieter switches, illuminated buttons, extra players or spare parts. |
| Cabinet material | Buy MDF locally and cut a compact bartop; reuse screws and brackets where safe. | Full-size sheets, decorative laminate, T-molding, printed artwork, trim and additional bracing. |
| Audio | Small salvaged speakers or a compact powered amplifier. | New speakers, a larger amplifier, grille cloth and separate volume controls. |
| Tools and finish | Borrow a saw, drill and clamps; use paint you already have. | Buying cutting tools, router bits, extraction equipment, primer and specialty finishes. |
The biggest savings usually come from reusing the monitor and tools, choosing a bartop footprint, buying sheet goods locally and beginning with a straightforward two-player panel. A full-size standing cabinet, new display, elaborate artwork, lighting and premium controls add both material cost and labor.
Bartop or full-size: which cabinet fits your budget?
Bartop cabinet
A bartop is the sensible first build. It uses less MDF, weighs less, fits on a desk or sturdy stand and can be carried by one person. A compact enclosure also reduces the length of wiring runs and the amount of paint and trim required. You will need a separate table, shelf or pedestal at a comfortable playing height.
Full-size standing cabinet
A full-size cabinet supports standing play and can hide the computer, power strip and speakers in a larger service area. The trade-offs are more sheet material, heavier parts, greater floor space, harder handling and more opportunities for racking or misalignment. Build full-size only after you have measured the room, transport route and monitor height.
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- Includes Raspberry Pi 4 4GB Model B with 1.5GHz 64-bit quad-core CPU (4GB RAM)
- CanaKit 3.5A USB-C Power Supply with Noise Filter (UL Listed) specially designed for the Raspberry Pi 4 (5-foot cable)
- CanaKit USB-C PiSwitch (On/Off Power Switch)
- Set of 3 Aluminum Heat Sinks for the Raspberry Pi 4
Reuse versus buying a display
A used HDMI monitor is normally the strongest budget choice. Check that it powers on reliably, shows a clean image at the intended resolution, has an accessible input and includes a stand or mounting points you can remove. A new display reduces the risk of dead pixels, failing capacitors or an incompatible connector, but it costs more and may require you to redesign the opening. Measure the visible screen, bezel, mounting pattern and cable clearance—not just the advertised diagonal size.
Choose the computer, power and storage
Raspberry Pi 4
Raspberry Pi 4 is a compact, power-efficient platform for classic arcade and console systems. Current Raspberry Pi documentation recommends a 5V/3A USB-C supply for Raspberry Pi 4 Model B. Use an intact, reputable supply rather than a phone charger of unknown capacity; voltage drops can cause boot failures, controller disconnects and filesystem corruption.
Raspberry Pi 5
Raspberry Pi documentation specifies a 27W USB-C supply for Raspberry Pi 5. Match the supply to the exact board and allow headroom for USB devices, storage and cooling. Pi 5 can be useful when you need more processing performance, but the board, power arrangement and cooling can increase the budget and cabinet ventilation requirements.
Rank #3
- KEEP YOUR PROCESSOR COOL: The busier a processor gets the more it heats up, leading to sub-optimal performance. To prevent this common issue, this kit includes an aluminum alloy case with a pre-installed fan. The aluminum alloy actively draws the heat from the pi board, while the fan further cools the board and case. These cooling mechanisms will help push the limits of your processor and increase its flexibility.
- SIZABLE RAM: This Raspberry Pi 4 comes equipped with 4GB of RAM, which is the same amount of RAM or more RAM than many mainstream laptops contain. With 4GB of RAM, your processor will be capable of running retro gaming setups and common computer applications, media players, and much more!
- SIMPLE TO TURN ON & OFF: This kit includes a USB-C Raspberry Pi 4 compatible power supply with an easy-to-use on/off switch that was designed specifically for the Raspberry Pi 4 model to streamline processing.
- IMPROVEMENTS FROM PREVIOUS MODELS: This latest model of the Raspberry Pi 4 offers groundbreaking increases in processor speed, multimedia performance, connectivity, memory, and more! The desktop performance of this model is comparable to entry-level x86 PC systems.
- VERSATILE USE: The Raspberry Pi may have a small processor, but it is a highly adaptable little computer that can replace your desktop PC. Its functions range from practical to nostalgic since it can power an ad-blocking server as easily as it can power an outmoded gaming setup. Other uses include but are not limited to printing from non-wireless printers, playing media, making time-lapse videos, and building multiplayer network game servers and motion-capture security systems.
microSD card and USB storage
Use a reliable microSD card large enough for the operating system, emulator packages, artwork and legally obtained games you plan to install. Keep a second card or image backup if the cabinet will be difficult to access after installation. A USB flash drive is convenient for transferring files during RetroPie setup; remove it or secure it internally once the transfer is complete so it cannot be knocked loose.
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| Platform | Best fit | Trade-offs |
|---|---|---|
| Raspberry Pi | Classic arcade systems, small cabinets, low power draw and simple USB controls. | Less capable for demanding emulation; relies on correct power, cooling and image compatibility. |
| PC | More demanding systems, larger libraries or software that requires x86 hardware. | Higher cost, more heat, greater power use, a larger enclosure and more configuration. |
Plan the cabinet before cutting MDF
The Raspberry Pi HackSpace plan says a compact cabinet can be cut from two 8×4 sheets of MDF. It recommends 18 mm MDF for the body and 12 mm MDF for front and rear panels. These are plan recommendations from 2020, not a requirement for every design; confirm your local sheet dimensions and saw kerf before laying out cuts.
- Measure the monitor. Record the screen width, height, bezel width, depth, mounting points and connector locations. The cabinet must be wide enough for the chosen monitor; other dimensions can be adjusted.
- Set the control-panel height and angle. Sit at the intended table or standing height, hold a cardboard mock-up and check wrist comfort, button reach and sightline to the screen.
- Draw one accurate side profile. Include the screen rake, control-panel slope, rear access and ventilation openings. Mark every internal brace and panel thickness.
- Transfer the profile to both side panels. Clamp the MDF together while cutting so the sides match. Label the inside faces and keep the pair together.
- Make a cardboard test panel. Lay out the joystick shafts, buttons and any player-two controls. Confirm that hands do not collide and that the monitor is not blocked before drilling MDF.
Matte paint helps reduce screen reflections. Protect high-contact edges with edging or plastic. MDF is inexpensive and easy to finish, while plywood is lighter and generally more durable at the same thickness; plywood can therefore be preferable when the cabinet will be moved often, even though it may cost more.
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- RASPBERRY PI 4 MODEL B SPECS: Dim: 85.6mm × 56.5mm–Processor: Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz--Memory: 4GB LPDDR4--Connectivity: 2.4 GHz and wireless LAN, Bluetooth, Gigabit Ethernet 2×USB 3.0 ports 2×USB 2.0 ports---GPIO: 40-pin GPIO header---Video & Sound: 2 × micro HDMI ports---Multimedia: H.265 H.264 OpenGL ES, 3.0 graphics SD card support: Micro SD card slot for OS & data---Input power: 5V DC via USB-C connector, 5V DC via GPIO header, POE(requires HAT)
- PASSIVE & ACTIVE COOLING: The kit includes a heatsink with thermal stickers for easy application and if that this not enough you can also connect the pre-installed fan to keep the board cool in any use
- CONVENIENT ACCESSORIES: The power supply features an inline on/off switch neoprene bag that holds and protects all the parts when not in use and the quick start guide is updated and written for Raspberry Pi 4
Build the wooden enclosure
- Cut the two side profiles. Use a straightedge and a fine-tooth blade where possible. Sand only enough to remove splinters; excessive sanding can make the two sides different.
- Cut the base, top and rear brace. Dry-fit them between the sides and verify that the monitor, Pi, amplifier and cable paths still have clearance.
- Install the structural panels. Pre-drill near MDF edges, then use screws and angle brackets. This keeps the cabinet strong while allowing disassembly for repairs. Glued or router-jointed construction is an alternative for experienced woodworkers, but it is harder to revise.
- Add inset front, rear and control panels. Leave a removable service panel or rear access door. You will eventually need to reach the Pi, encoder, power connections and display.
- Cut ventilation openings. Place openings where warm air can escape and cool air can enter without exposing the electronics to spilled drinks or loose debris.
- Test-fit every component. Mount the monitor, place the Pi and amplifier, route a temporary HDMI lead and verify that the rear panel can still close.
- Disassemble for finishing. Fill or sand visible screw holes if desired, apply primer suitable for MDF, paint in a ventilated area and let the finish cure before installing electronics.
Install joysticks and buttons without wasting parts
A USB encoder is the simplest wiring path. It presents the arcade switches to the Pi as a USB game controller, so you do not need to design a custom GPIO harness for a basic build. Typical kits provide terminals or pre-crimped leads for each joystick direction and button.
- Mark the layout on cardboard first. Check shoulder width, reach, button spacing, player separation and the monitor sightline while seated or standing.
- Transfer the marks to the control panel. Confirm that each hole leaves enough material around it and that the joystick body will not collide with braces underneath.
- Drill the button and joystick holes. Use the diameters specified by your kit. Support the MDF to reduce breakout, and test one hole on scrap first.
- Mount the joysticks and buttons. Tighten nuts and clips firmly but do not crush the panel. Orient each joystick consistently so up, down, left and right match the encoder labels.
- Connect the encoder. Attach each switch pair to its labeled input and common ground, then connect the encoder to the Pi with USB. Keep wires away from sharp edges and fan openings.
- Label both players. Use tape or a diagram before closing the panel. A labeled harness makes a later button replacement much faster.
Generic kits reduce the initial price. Premium joysticks and buttons can provide a more consistent feel, quieter operation or longer service life, but they are not necessary for a first cabinet. Buy a few spare microswitches or buttons only after confirming the kit’s connector type and hole diameter.
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Add speakers and audio controls
The Official Raspberry Pi Handbook describes both 3.5 mm audio and USB-powered audio options. A small powered amplifier and two compact speakers are adequate for a bartop. Mount speakers behind a grille or perforated panel, leave the amplifier’s controls reachable during testing and keep audio wires separated from mains wiring.
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- Vilros Complete Starter Kit for Pi 4 Includes Raspberry Pi 4 Model B Board and all the accessories you need to get started.
- 9-PART KIT WILL HAVE YOU READY TO GET UP AND RUNNING: Kit Includes 1. Raspberry Pi 4 Model B Board 2. Case With Easy to connect Built-in fan 3. 64GB Micro SD card Preloaded with RP OS 4. Vilros Pi 4 Compatible Power Supply with Inline on/off switch (power supply color may vary white/black) 5. Micro HDMI to Standard HDMI cable (5ft) 6. Micro SD to USB adapter to reflash card if desired 7. Neoprene Storage Bag to store all parts when not in use 8. Set of 4 Heatsinks 9. Vilros QuickStart Guide instruction booklet for Pi 4
- PASSIVE & ACTIVE COOLING: The included case is well-vented and the kit also includes a set of heatsinks with thermal stickers for easy application and a pre-installed fan to keep the board cool in any use.
- CONVENIENT ACCESSORIES: The power supply features an inline on/off switch neoprene bag that holds and protects all the parts when not in use and the QuickStart guide is updated and written for Raspberry Pi 4.
- IMPORTANT: Kit does NOT include Keyboard, Mouse or Monitor
Before final assembly, test volume at the maximum level you expect to use. Buzzing usually indicates a poor power connection, an amplifier ground issue or a cable routed alongside a noisy supply lead. Secure the speakers so vibration cannot loosen screws or rattle the MDF.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Install RetroPie and configure the controls
- Prepare the card. Download the RetroPie image appropriate to your Raspberry Pi model from its official distribution channel and write it to the microSD card with an image-writing utility.
- Connect the initial setup hardware. Attach the correctly rated power supply, monitor, keyboard or controller and network connection if required by the image. Do not power the board from an unverified adapter.
- Boot and complete first-run configuration. Allow the system to expand its filesystem and reach EmulationStation. If the screen is blank, recheck HDMI input selection, cable seating and the image’s board compatibility.
- Configure the encoder. When EmulationStation detects the USB encoder, assign directions, the action buttons, select, start and hotkey functions. Press each physical control once and write down the mapping.
- Transfer legally obtained content. Use the documented USB-transfer method or network method. Place each file in the directory for its system, then restart or refresh the game list.
- Test one title per system. Verify controls, aspect ratio, audio, save behavior and exit combination before copying a large library.
- Make a backup. After the cabinet works, create an image of the microSD card and store it separately from the machine.
RetroPie tutorials discuss homebrew and official game sources, but they do not grant rights to copyrighted ROMs. Keep your software collection within the laws and licences that apply where you live.
Power, cable management and service access
- Use the Raspberry Pi model’s specified USB-C supply: 5V/3A for Pi 4 Model B or the documented 27W supply for Pi 5.
- Use strain relief so an HDMI, USB or speaker cable cannot pull directly on a board connector.
- Mount a power strip or distribution point securely, with covered fittings and enough slack to remove the rear panel.
- Keep low-voltage signal cables away from mains conductors and hot amplifier components.
- Fasten the Pi, encoder and amplifier so they cannot slide into the fan or short against MDF screws.
- Leave a removable panel for updates, card replacement and troubleshooting.
Do not improvise mains wiring. Use intact, rated cords and covered connections; if your design requires fixed mains work, have it completed or inspected by a qualified person.
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Safety when cutting, sanding and painting MDF
MDF work is not harmless woodworking. The UK Health and Safety Executive identifies wood dust and formaldehyde exposure from MDF machining, while the US Occupational Safety and Health Administration lists wood dust, finishing chemicals, electrical hazards and fire hazards among woodworking risks. The Official Raspberry Pi Handbook also warns against untreated MDF work without ventilation and protective equipment.
- Cut and sand in a well-ventilated area with effective dust extraction and high-performance filtration.
- Wear eye protection and suitable respiratory protection during cutting, sanding and painting; follow the respirator manufacturer’s limits.
- Keep dust away from the Pi, monitor vents, amplifier and power connections. Clean with extraction rather than blowing dust into electronics.
- Use compatible primer and paint, follow drying times and keep ignition sources away from solvent fumes.
- Store and dispose of dust, rags and finishing products according to their labels; accumulated dust can contribute to fire risk.
- Unplug the cabinet before opening it, and never work on exposed mains connections while energized.
Common problems and practical fixes
| Symptom | Likely causes | Checks and fixes |
|---|---|---|
| Pi repeatedly reboots or shows a low-voltage warning | Undersized, damaged or overly long supply; too many USB loads. | Use the model-correct rated supply, shorten questionable leads and test with peripherals disconnected. |
| Blank or flickering display | Wrong monitor input, loose HDMI cable, incompatible image or insufficient power. | Select the monitor’s HDMI input, reseat the cable, confirm board/image compatibility and verify the supply. |
| Buttons work but directions are wrong | Joystick rotated, encoder leads assigned to the wrong terminals or mapping error. | Compare the harness with the encoder labels, rotate the joystick if necessary and remap in EmulationStation. |
| One button is intermittent | Loose spade connector, crushed switch terminal or damaged lead. | Power down, reseat the connector, inspect the switch and substitute a known-good lead. |
| No audio or loud hum | Wrong output selected, muted software, loose 3.5 mm/USB connection or amplifier grounding problem. | Test the audio device outside the cabinet, check volume settings and reroute signal cables away from power wiring. |
| Cabinet rocks or panels split | Unequal side profiles, screws too close to an MDF edge or insufficient bracing. | Measure diagonals, add an internal brace and pre-drill before replacing fasteners. |
| Controls are uncomfortable | Panel drilled before testing reach, excessive angle or insufficient player spacing. | Use the cardboard template for a revised panel; replacing one panel is cheaper than rebuilding the cabinet. |
Ways to keep the project within budget
- Design around what you already own. Measure the available monitor before drawing the cabinet instead of buying a screen to fit an untested plan.
- Start with two players. A basic two-player panel is less expensive and easier to wire than four-player controls, lighting and auxiliary switches.
- Buy sheet goods locally. Local pickup avoids shipping damage and lets you choose flatter MDF or plywood.
- Use removable construction. Screws and angle brackets make upgrades and repairs possible without destroying glued joints.
- Delay cosmetics. Confirm that the Pi boots, controls map and audio works before paying for artwork, trim or lighting.
- Reserve money for hidden items. Include the power supply, microSD card, HDMI cable, brackets, screws, ventilation, audio and replacement switches in the estimate.
- Reuse carefully. Salvaged monitors and speakers are worthwhile only when they pass a long test and have safe, undamaged cables.
A sensible build sequence
For the fewest expensive mistakes, proceed in this order: choose the Pi and display, make a cardboard control panel, draw the side profile, buy MDF and hardware, cut and dry-fit the shell, test the complete electronics on a bench, finish the wood, install the controls and audio, configure RetroPie, then close the service panels. This sequence prevents a cabinet that looks finished but cannot accept its monitor, power supply or encoder.
A compact bartop built with 18 mm body MDF and 12 mm panel MDF, a reused monitor, a Raspberry Pi with its specified power supply, a basic USB encoder and legally sourced software delivers the strongest balance of cost, space and repairability. Move to a full-size cabinet, new display, premium controls or a PC only when a specific requirement—standing play, demanding emulation, durability or a particular screen—justifies the added material, heat, complexity and labor.
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