You've picked out your dust collector (or shop vac with a cyclone), bought the fittings, and now you're staring at the box in the middle of your garage with a single thought: where does any of this go? The equipment list is the easy half. The setup half — ductwork routing, hose sizing per tool, blast gate sequencing, and the wiring to keep the breaker from tripping mid-cut — is what separates a system that actually captures dust at the source from one that just makes noise.
This is the procedural follow-up to the budget-tier dust collection guide. If you haven't chosen your equipment yet, read that one first. If you already have it — or you're about to install what you bought — this guide covers the step-by-step setup from floor plan to first-fire test.
The collector's final position sets everything else: duct length, hose runs, blast gate locations, and where you need electrical service. Decide this before you buy fittings — not after. If you're still working out the broader layout, the workshop layout planning guide covers where to put the collector relative to your tool cluster.
Plan Your Ductwork Layout Before You Drill Anything
The single biggest mistake in dust collection setup is treating it like an electrical project — run it where the wires go. Ductwork has the opposite logic: every foot of run and every 90-degree elbow costs you airflow. You don't route it the shortest way to where the wall happens to be; you route it the shortest way to where airflow wants to go.
This is why the collector position is decided first. Before you mount a single hanger or cut a single fitting, draw the duct path on your shop floor plan and check three things: total linear feet from collector to the farthest tool, the number of direction changes (each 90-degree elbow is roughly equivalent to 5–8 feet of straight duct in friction loss), and whether the routing crosses any doorways or walkways.
Direction of airflow matters. Run duct so chips and debris move with gravity assistance — horizontal runs stay horizontal, vertical drops to tools are short, and there are no U-shaped traps where debris accumulates mid-run. The collector should sit at one end of the system; the tools tap in along the run.
Collector placement rules. Position it against a wall (or in a corner) with the intake facing the tool cluster. Keep at least 2 feet of clearance on every side so the intake doesn't starve and you can swap collection bags without moving the unit. The exhaust should vent outside the shop if possible — a 4-inch dryer vent hose through an exterior wall handles this. If venting outside isn't an option, vent toward the garage door rather than into the breathing zone of your workbench.
For most single-car garage shops (roughly 20' × 10'), the collector lives in the back corner on the wall adjacent to the table saw, planer, and jointer cluster. That's the high-volume chip triad — putting the collector within 6–8 feet of all three keeps every main run short, one bend maximum. The miter saw and sanders, which produce less volume, take longer flex hose runs from a tee in the main duct.
Pick the Right Hose Size for Each Run
Hose size is not a stylistic choice. It determines whether your collector can actually pull air from the farthest tool. Use the wrong diameter and the system looks fine on paper but moves almost no air at the tool.
| Tool | Dust Port Size | Hose Diameter | Reasoning |
|---|---|---|---|
| Table saw | 4" (most) | 4" | Large chips, high volume; 2.5" chokes fast |
| Planer / jointer | 4" | 4" | Continuous large-chip flow |
| Router table | 2.5" | 2.5" | Finer chips, lower volume |
| Miter saw | 1.25"–2.5" | 2.5" | Intermittent use; smaller port is fine |
| Orbital / random-orbit sander | 1.25" | 1.25"–2.5" | Fine dust; reducer works, but 2.5" main gives better suction |
| Belt sander / drum sander | 2.5" | 2.5" | Very high fine-dust volume; needs full suction |
The rule: match the hose to the tool's dust port, not to the collector's outlet. Use 4-inch rigid duct for everything carrying airflow from more than one tool. Use 2.5-inch flex only for single-tool runs from the main duct branch to the tool. Use 1.25-inch hose only on detail sanders, and only with a reducer at the manifold — you won't get useful suction through a 1.25-inch line that's 12 feet long.
If you're starting from scratch, buy one 4-inch duct run with a wye at the end that splits into two 2.5-inch branches — one to the table saw, one to a flex hose you drag between benchtop tools. That covers a beginner shop without overbuilding.
Mount the Collector and Run Power
The collector needs to be mounted (or placed) securely before you start connecting ducts. A 1.5–2 HP collector weighs 50–80 pounds; you don't want it sliding across the garage floor when a hose yanks it. Bolt it to a plywood backer board or sit it on a mobile base if you intend to reposition it later.
Bolt the backer board into wall studs, not just drywall. A vibrating collector running for two hours shakes drywall anchors loose. Two 1/4-inch lag bolts into a stud handle the weight easily; four is better for a larger 2 HP unit.
The electrical side is where most DIYers underestimate the job. A dedicated 1.5–2 HP collector pulls 10–15 amps at startup and 8–12 amps running. Your table saw also pulls 10–15 amps. Run both on a shared 15-amp circuit and you'll trip the breaker the first time they overlap — guaranteed.
The collector needs its own dedicated 20-amp circuit. This is also the time to confirm your table saw is on a separate circuit from anything else that could kick on mid-cut. The dedicated circuit rules, wire gauge, and panel requirements are covered in full in the workshop lighting & electrical guide — read it before any electrical work, and pull a permit or hire an electrician if your jurisdiction requires one.
Once the circuit is in, power on the collector alone first — listen for smooth operation, no bearing noise, no vibration. If anything sounds off, you've got a shipping-loose bracket or an unbalanced impeller. Diagnose now, not after the ductwork is connected.
Connect Each Tool: Ports, Adapters, and Blast Gates
Now the actual plumbing. Run from the collector outward — not from the tool back to the collector. That way you don't end up with an extra foot of slack between the collector and the first junction because you mis-measured.
Connect the collector's intake to the first section of main duct. Use a short flexible coupler (4–6 inches) between the collector's intake port and the rigid duct — rigid-to-rigid connections transmit vibration into the duct hangers, and that's how you end up with sagging duct six months later.
The table saw and planer/jointer cluster usually share a single 4-inch trunk if they're within 4–6 feet of each other. Run a wye tee in the main duct, then drop a 4-inch branch to each tool. Each branch gets its own blast gate so you can isolate one tool at a time.
Use rigid metal duct (galvanized steel spiral or PVC) for the main run. Use flexible hose only at the last 1–2 feet to the tool — it absorbs small alignment errors and lets the tool get bumped without cracking the duct.
From the same main 4-inch duct, tee off a 4-to-2.5-inch reducer and run 2.5-inch flex hose to the miter saw station and to a portable hose you drag to the sander. The 2.5-inch branch should also have a blast gate so it doesn't leak suction when you're not using it.
Plug any unused port with a blast gate in the closed position or a rubber end cap — an open branch cuts your effective suction at the active tool by 30–50%.
The last habit that makes this all work: open the blast gate at the tool you're using, then turn on that tool, then turn on the collector. Reverse for shutdown. Two seconds of habit at the start of every cut is the difference between a system that pulls debris at the source and one that pushes it past the port. Plastic blast gates run $5–8 each and never fail — spend the $40 for the four or five you actually need.
Tune the System: First-Fire Test and Static Pressure Check
Once everything is connected, the moment of truth: power the collector on with every blast gate closed. It should pull smoothly up to running speed in 2–3 seconds. If it trips its internal breaker or bogs down at startup, you have a wiring problem (under-voltage) or a crushed hose somewhere.
Then run the static pressure check at each port:
- Close all blast gates.
- Open the gate at the first tool you're testing.
- Hold a piece of paper, a tissue, or a thin plastic bag at the open dust port.
- The paper should pull firmly against the opening and stay there briefly when you let go.
- Repeat at every port with that port's gate open and all others closed.
If the paper barely moves at the table saw port, that branch has a problem — probably a leaky fitting, an open branch upstream, or a crushed flex hose. Walk the duct from collector to port listening for hissing air (the leak sound) and looking for disconnected clamps. Most "the system isn't pulling" complaints on install day are connection leaks, not collector failure.
Then run each tool for 60 seconds with collection attached. Look at the tool's dust port — chips should be entering the port, not landing on the floor an inch past it. If you're getting visible chips landing past the port, your port-to-tool alignment is wrong; re-seat the tool under the port and adjust the tool's height until the port is flush with the dust stream.
Listen to the collector under load. It should run at a flat, even pitch with one tool running and all other gates closed. A dropping pitch mid-run means a gate opened, a hose collapsed under suction, or the filter loaded up. If the pitch drops the moment you start the table saw, your filter is too restrictive for the airflow — clean it, replace it, or upgrade to a higher-CFM-rated cartridge.
Maintaining Your Dust Collection After Install
A system that isn't maintained falls off in suction within weeks. Three habits keep it pulling like new.
Empty the collection drum before it's full. A cyclone drum filled above its visible line starts pulling chips back into the airstream. Empty when the drum is about two-thirds full — weekly if you run the table saw several times a week, monthly if you only do weekend projects.
Clean or pulse the filter on cadence. If your collector has a cartridge filter with a manual cleaning crank, turn it once at the end of every session. If it has an auto-clean pulse, leave it on. If you notice dust starting to bypass the filter (visible puffing at the exhaust, fine dust on surfaces downstream), the filter element needs replacement — cartridge filters are consumables, usually 12–18 months in a hobbyist shop.
Walk the ductwork once a quarter. Five minutes. Look for loose hose clamps, sagging duct that might be pooling condensation, and any flex hose that's started to collapse. Static builds up inside the duct over time; for a full system clean, blow it out with a leaf blower through an open port once a year.
The system you install today is the system you'll live with for years. Spending an extra weekend getting the layout and gate sequencing right pays back in every project after — a workshop that pulls dust at the source rather than one you clean for twenty minutes before each session. That distinction matters more than any single piece of equipment you buy.
Your Next Step
Dust collection feels optional until you've lived without it for a few months; then it becomes the first thing you plan in any new shop. The free workshop readiness checklist includes a dust collection assessment — it shows you exactly where your current setup stands and what to address before buying anything.
If you're working from a specific space, tool list, and budget, BenchReady's consultation covers the full setup — equipment choice, layout, duct routing, and the wiring it depends on — calibrated to your shop, not generic.
For the budget side of equipment choice ( shop vac vs. dedicated collector, the $40 Dust Deputy cyclone, $50/$100/$200 tiers ) read the companion guide first. This procedural guide assumes you've already settled on the equipment; for the layout side, the workshop layout guide covers collector clustering in context.
Get a dust collection plan built around your space
Tell us your tools, layout, and budget. We'll spec the collector, the duct routing, and the wiring it needs — specific to your shop, not a generic list.