Emitters, dripline and zones sized to your plants and soil — from spigot to root zone.
Estimates are planning aids, not a professional quote. Double-check quantities and product coverage — and any local code or permit requirements — before you buy.
| Drainage | $177–$239 |
| Total | $177–$239 |
Excludes tools, delivery, tax and permit fees. Labor not included — this is a DIY materials estimate.
These are affiliate links: we may earn a commission if you buy through them, at no extra cost to you. It never changes what the calculator recommends — the shopping list comes from your dimensions, not from what pays.
About this calculator
The Drip Irrigation Builder sizes a point-source and inline-tubing system from what you're actually watering, not a yard footprint. Enter how many individual shrubs or trees need their own emitters, how many linear feet of beds or rows will run on inline dripline, and your soil type, and it works out emitter count, flow rate and tubing length the way a real design does it — sandy soil needs tighter emitter spacing and a higher flow rate per point than clay, because water barely spreads sideways before it sinks straight down.
Dial in the number of watering zones, a battery timer, filter mesh and pressure regulator rating in the advanced panel, since drip systems run at 25 to 30 psi rather than a hose bib's full pressure and need finer filtration than any sprinkler zone. The result is a full parts list — emitters, dripline, distribution tubing, stakes and end caps — plus a cost estimate. This is a planning estimate for materials and layout, not an engineered irrigation design.
Step by step
A step-by-step walkthrough to go with your plan above. Follow the product instructions and any local code or permit requirements as you work.
Walk the yard and split it into individual plants that need point-source emitters and continuous beds or rows better served by inline dripline, then group both by realistic watering schedule for zoning.
Confirm static pressure at the hose bib with a spigot gauge and note whether the source is municipal or a well or pond, which decides your filter mesh — this system runs at a fraction of a sprinkler's pressure and flow.
Thread the backflow preventer, pressure regulator, filter and timer onto the hose bib in that order, then run the 1/2" distribution tubing from there to the planting areas.
If running more than one zone, install a manifold at the end of the distribution run and route a separate branch line to each planting area from there.
Unroll inline dripline along beds and rows, and punch point-source emitters into the distribution line at each individual plant, connecting each with a short length of microtubing.
Pin dripline and microtubing branches with stakes every few feet so wind, mulch top-dressing and foot traffic can't pull emitters off target.
Run water through every line with the ends open to flush out any debris from installation, then close each run with a figure-8 end closure.
Run each zone and check that every emitter is wetting its target evenly, adjust any that are off, then set the timer's run time and frequency to match your soil type's drainage rate.
Equip the job
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Keep planning
Garden & Yard
Answers
A small shrub or perennial does fine with one emitter close to the base. A medium shrub wants two, spaced on opposite sides of the root ball so water reaches roots growing in either direction. A small tree needs three or four spread around its drip line, the ring on the ground below the outer branch tips, since that's where most of its feeder roots actually are, not against the trunk. As the plant grows, add emitters farther out rather than just running the existing ones longer.
Point-source emitters are individual barbed fittings you punch into a supply line and aim at one plant with a short length of microtubing — the right choice for shrubs, trees and container plants spaced irregularly. Inline dripline is a single hose with emitters already built in at a fixed spacing (12, 18 or 24 inches), which is far faster to lay out for a continuous run like a vegetable bed, hedge row or ground-cover planting where the whole strip needs even coverage rather than individual points.
Water moving out of a drip emitter forms a wetted bulb shaped by how the soil moves water. Sandy soil has large pore spaces, so water drops almost straight down with very little sideways spread — emitters need to sit closer together and run more gallons per hour so the wetted bulbs actually overlap. Clay's fine particles pull water sideways by capillary action, spreading it much farther from the emitter at a lower flow rate, so wider spacing and less flow still wets the same root zone without pooling on the surface.
Yes. Drip tubing, barbed fittings and emitters are rated for roughly 25 to 30 psi, while a typical hose bib delivers 40 to 65 psi straight from the main. Skip the regulator and the first time every emitter is open at once, fittings pop off, tubing splits at the punch holes, and emitters can blow out of their seats entirely. The regulator threads in right after the backflow preventer, ahead of everything else, and it's one of the cheapest parts on this list relative to what it protects.
Fewer than you'd think, and for a different reason than a sprinkler system. Drip zones use so little water overall that a single hose bib can often run two or three at once without a flow problem — the real reason to split zones is watering schedule, not hydraulics. A vegetable bed in full sun typically needs daily short cycles, while an established shrub border might only need water twice a week; put those on separate zones so each gets the schedule it actually needs.