Cannabis SCROG Setup Buying Guide | Pop's Cannabis

For a cannabis SCROG setup, buy a modular trellis net with 3.5 to 4 inch squares and a frame that fits your grow space. Soft, coated string or rubberized wire protects stems. Adjustable height beats a fixed screen. Skip cheap metal wire that cuts plant tissue. The screen is the core purchase; pair it with a sturdy tent, an adjustable LED, and a timer.

Common Mistakes to Avoid in Your Cannabis Scrog Setup

What to Look For in a SCROG Setup

• Mesh size: 3.5 to 4 inches works for most cannabis plants. Smaller holes (2 inches) suit compact indica, larger holes (5 to 6 inches) can work for wide sativa, but 3.5 to 4 inches is the safe middle.
• Frame: PVC, aluminum, or wood. PVC is light and cheap; aluminum is durable. The frame must fit your tent or room with no gaps that let branches fall through.
• Material: Soft nylon string, coated wire, or rubber cord. Avoid bare metal wire and thin twine that frays.
• Height adjustment: Use ratchet hangers, adjustable legs, or multiple net layers so you can raise the screen as plants stretch.
• Compatibility: Measure your tent or grow area first. A net that is too small leaves edges unsupported; too large wastes space.

Parameter Bands for Common Grow Spaces

Match the screen to your footprint. For a 2x2 foot tent, a 24x24 inch net with 3.5 inch squares is enough. For 4x4 feet, use a 48x48 inch net or two 24x48 inch nets. For 5x5 feet, a 60x60 inch net. For a closet or odd shape, buy a roll of trellis netting and cut to size. Square count: a 4x4 net with 3.5 inch squares gives about 13 squares per side. Aim for one cola per square during flower.

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Common Pitfalls to Avoid

• Buying a net without checking hole size. Large holes let buds fall through; small holes trap leaves.
• Using sharp metal wire. It cuts stems and invites disease.
• Fixing the net at one height. Plants stretch. Plan to raise the net or add a second layer.
• Overcrowding. More squares does not mean more yield if airflow drops.
• Ignoring tent poles. Some nets clip to poles; others need a frame. Confirm what your tent supports.

FAQ

What size SCROG net do I need?

Match the net to your grow area. Measure the inside of your tent or room. Buy a net that fills that space or cut a larger roll. A 4x4 foot tent uses a 48x48 inch net.

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How high should the SCROG net be?

Start 8 to 12 inches above the pot or growing medium. Raise it as plants grow. Many growers use two nets: one low for training, one high for support.

Can I use a tomato cage instead?

Tomato cages work for small plants but do not create an even canopy. A flat trellis net is better for SCROG because it spreads branches out.

Do I need a specific light for SCROG?

No. Any full spectrum LED or HID works. SCROG improves light distribution. Keep the light 18 to 24 inches from the canopy and adjust as plants grow.