How much does a 2x4 grow tent (2ft x 4ft, 8 sq ft) yield? An intermediate grower running a 250W LED in coco coir can expect roughly 120–180 grams (4–6 oz) of dried flower per harvest. A 2x4 tent fits about 1-4 plants and costs around $13-19/month to light. Pair it with a 240–260W LED (e.g. Spider Farmer SF2000). Adjust the calculator for your exact light, medium, and experience level. Running one: 52 cu ft at the standard 6.5ft tent height, 31W per square foot, drawing about 2.1A on a 120V circuit and needing roughly 65 CFM of extraction with a carbon filter — a 4-inch inline fan. Where it fits: Fits inside a standard closet or along a bedroom wall — the smallest footprint that still runs a full photoperiod cycle from seed to harvest. What it is for: One or two plants, or a dedicated veg and mother tent feeding a larger flowering tent. How to train it: Low-stress training and topping on one or two plants; a single well-trained plant usually fills this canopy on its own. What limits you first: Height, not floor space — a stretchy sativa can reach the light before it finishes flowering.
A 2x4 grow tent (8 sq ft) under a 250W LED typically yields 120–180g (4–6 oz) of dried flower for an intermediate grower in coco coir. Beginners average less; experts more.
A 2x4 tent comfortably fits 1-4 plants in 3–5 gallon pots. 2 is a common sweet spot; use SOG for more smaller plants or SCROG for fewer larger ones.
Aim for about 250W of quality LED for a 2x4 tent — roughly 31W per square foot. A good match is a 240–260W LED (e.g. Spider Farmer SF2000).
Running a 250W LED 18 hours a day at ~$0.12/kWh costs about $13-19 per month. Flowering at 12/12 lowers this.
A 2x4 tent is about 52 cubic feet at the standard 6.5ft height. Target one full air exchange per minute plus roughly 25% for carbon filter drag — about 65 CFM, which is a 4-inch inline fan.
Fits inside a standard closet or along a bedroom wall — the smallest footprint that still runs a full photoperiod cycle from seed to harvest. One or two plants, or a dedicated veg and mother tent feeding a larger flowering tent. The constraint that bites first at this size: height, not floor space — a stretchy sativa can reach the light before it finishes flowering.
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