Goliath Grow Tent 5' x 5' x 6'11"–7'11"

The Goliath Grow Tent 5' x 5' x 6'11"–7'11" is a heavy-duty indoor growing enclosure designed for gardeners who need a larger square footprint, reinforced construction, extensive access, and adjustable vertical clearance.

Its 5-foot by 5-foot floor area provides 25 square feet of usable growing space for multiple plants, large lighting fixtures, circulation fans, containers, trellis systems, and environmental equipment. The square layout supports broad, even canopy coverage and works well with lighting systems designed specifically for 5' × 5' growing areas.

• Footprint: 5' × 5'
• Adjustable Height: 6'11" to 7'11"
• Fabric: Heavy-Duty 1680D Construction
• Frame: Reinforced 22 mm Steel Poles

The enclosure is constructed with dense 1680D fabric that helps reduce unwanted light leakage while supporting stable temperature, humidity, and airflow conditions. According to the supplied manufacturer information, this fabric is up to nine times denser than material used in many competing grow tents.

A diamond-pattern reflective interior helps scatter and redistribute light throughout the enclosure. This reduces dim areas around the sides and corners of the canopy while improving the usefulness of reflected light. The manufacturer states that the reflective walls can redistribute up to 30% more lumens.

The included 12-inch height extension kit allows the tent to adjust from approximately 6 feet 11 inches to 7 feet 11 inches tall. The extra height provides greater clearance for tall plants, suspended lighting, carbon filters, exhaust fans, ducting, and environmental control equipment.

The frame uses larger 22 mm steel poles, steel interlocking pins, and metal corner connectors. This reinforced structure provides improved stability and greater equipment support compared with lightweight frames that rely on thinner poles or plastic corner pieces.

A large H-style front door provides broad access to the growing area. Two additional zippered rear windows improve access to plants, ventilation equipment, and other components located along the back of the enclosure.

Two square observation windows are built into the front door. These allow gardeners to inspect the interior without fully opening the enclosure and disrupting established temperature, humidity, airflow, or lighting conditions.

Six 11-inch round ventilation ports provide flexible routing for intake ducting, exhaust systems, carbon filters, air-cooled lighting, and environmental equipment. Double-cinching sleeves help secure ducting while reducing unwanted air and light leakage.

Three 3-inch cable ports provide dedicated routing for lighting cords, circulation fans, sensors, timers, pumps, and environmental controllers. The additional cable port gives larger installations more flexibility than smaller Goliath tent configurations.

Four lower air inlets support passive intake and help distribute incoming air around the base of the enclosure. When paired with an upper exhaust system, these openings can support efficient bottom-to-top airflow.

A removable heavy-duty spill tray helps protect the surrounding floor from water, runoff, soil, condensation, and routine gardening debris.

Industrial-strength light-blocking zippers, dense fabric walls, an IR-blocking top, reinforced steel framing, and secure duct closures help create a controlled indoor growing environment suitable for both newer gardeners and experienced operators.

Heavy-Duty 1680D Fabric

The enclosure is constructed with dense 1680D fabric designed for improved durability and light containment. Benefits include:

• Reduced light leakage
• Greater resistance to wear
• Improved environmental stability
• Reinforced support around openings
• Better long-term durability
• Stronger enclosure walls
• Improved resistance around zippers and ports

The supplied manufacturer information states that the material is up to nine times denser than fabric used in many competing grow tents.

Diamond Reflective Interior

The interior uses a diamond-pattern reflective lining designed to scatter and redistribute light throughout the growing area. This helps:

• Reduce dim corners
• Improve side-light distribution
• Increase usable reflected light
• Support more even canopy exposure
• Improve lighting efficiency
• Make better use of large square fixtures
• Reduce wasted light along the enclosure walls

The manufacturer states that the reflective walls can redistribute up to 30% more lumens.

Adjustable Height

The included extension kit adds approximately 12 inches of vertical growing space. The tent can be configured at 6'11" standard height or 7'11" extended height. The added clearance provides more room for taller plants, hanging lights, carbon filters, exhaust fans, ducting, environmental sensors, and greater light-to-canopy spacing, as well as larger overhead equipment layouts.

5-Foot by 5-Foot Footprint

The tent provides approximately 25 square feet of interior floor space. The 5' × 5' layout works well with large square grow lights, multiple plant containers, trellis systems, propagation trays, fabric pots, larger indoor gardens, organized plant rows, and environmental monitoring equipment.

Reinforced 22 mm Steel Frame

The frame uses 22 mm steel poles, steel interlocking pins, and metal corner connectors. This construction provides:

• Greater structural stability
• Better support for hanging equipment
• Reduced frame movement
• Stronger corner connections
• Improved long-term durability
• Better support for larger lighting systems
• More dependable performance than plastic-corner frames

The supplied specifications identify the poles as approximately 22 mm in diameter with a 0.7 mm wall thickness.

Steel Interlocking Pins

Steel interlocking pins secure the frame connections. These pins help keep poles seated correctly, reduce accidental separation, improve frame stability, simplify assembly, support repeated setup and breakdown, and maintain alignment under properly distributed equipment loads.

Metal Corner Connectors

Metal corner pieces reinforce the upper and lower frame sections. Compared with plastic corners, metal connectors provide greater resistance to cracking, improved stability, better long-term durability, more reliable equipment support, and stronger frame alignment.

H-Style Front Door

The large H-style front doorway provides broad access across the front of the enclosure. This makes it easier to water plants, adjust lighting, install equipment, inspect the canopy, arrange containers, clean the interior, complete routine maintenance, and access central plants without removing the full setup.

Two Zippered Rear Windows

Two zippered rear windows provide additional access to the back of the enclosure. These openings help gardeners reach rear plants, ventilation ports, circulation fans, carbon filters, sensors, trellis systems, electrical equipment, and ducting connections. The rear access points are especially useful in a 5-foot-deep enclosure where reaching every area from the front may be difficult.

Easy-View Observation Windows

Two square observation windows are positioned on the front door. These allow gardeners to inspect the interior without opening the main entrance. Benefits include:

• Reduced temperature fluctuation
• Reduced humidity loss
• Less airflow disruption
• Faster visual inspections
• Lower risk of outside light entering
• Easier progress monitoring
• Less frequent zipper use

Six Large Ventilation Ports

The tent includes six round ventilation sockets measuring approximately 11 inches each. These can support exhaust ducting, intake ducting, carbon filters, air-cooled lighting, environmental equipment, multiple ventilation layouts, supplemental airflow systems, and larger-diameter commercial ducting. The oversized openings can also accommodate smaller ducting when secured with the double-cinching sleeves.

Double-Cinching Duct Ports

The ventilation sleeves use a double-cinching design. This helps hold ducting securely, reduce air leakage, limit light leakage, support different duct sizes, improve environmental control, keep connections stable, and reduce gaps around smaller ducting.

Three Cable Ports

Three round cable ports measure approximately 3 inches each. These provide dedicated routing for lighting cords, fan cords, timers, sensors, pumps, controllers, monitoring equipment, and additional environmental devices. The third cable port provides more routing flexibility for larger equipment layouts.

Four Lower Air Inlets

Four square air inlets are positioned near the bottom of the enclosure. These openings help draw cooler air into the tent, balance exhaust airflow, improve low-level circulation, support negative pressure, distribute intake air more evenly, create a bottom-to-top airflow pattern, and reduce stagnant areas around the floor.

Heavy-Duty Light-Proof Zippers

Industrial-strength zippers are designed for repeated use while helping contain light and maintain the internal environment. The zipper system supports frequent access, secure closure, better environmental containment, reduced light leakage, long-term durability, and dependable operation across large door panels.

Heavy-Duty Spill Tray

A removable floor tray helps contain water, soil, nutrient solution, condensation, and gardening debris. The tray protects the surrounding floor from water spills, runoff, soil, condensation, plant debris, routine maintenance mess, and minor equipment leaks. Its removable design simplifies cleaning between growing cycles.

IR-Blocking Top

The enclosure includes a specialized IR-blocking top designed to reduce infrared and heat transfer through the upper surface. Actual performance depends on lighting type, fixture wattage, ventilation capacity, room temperature, equipment placement, air exchange rate, and heat generated by filters, fans, and drivers.

Large Square Lighting Compatibility

The 5-foot by 5-foot floor plan is well suited for large square lighting fixtures designed to cover a broad canopy. When selecting lighting, consider fixture coverage, hanging height, heat output, canopy size, plant spacing, ventilation requirements, frame load limits, driver placement, and distance from reflective walls.

Designed for Environmental Control

The tent helps gardeners manage lighting, temperature, humidity, airflow, water containment, equipment placement, plant access, ventilation routing, intake distribution, and cable organization.

Broad Plant Access

The combination of a large H-style front door and two rear zippered windows improves access throughout the enclosure. This can reduce the need to move heavy containers, reach across the full canopy, disturb trellis systems, remove circulation equipment, disconnect ducting, or rearrange the entire growing area during maintenance.

Suitable for Beginners and Experienced Gardeners

The enclosure provides straightforward assembly and clear access for newer indoor gardeners while offering the reinforced frame, adjustable height, reflective lining, and ventilation flexibility expected by more experienced users.

Recommended Setup Practices

• Read the manufacturer’s instructions before assembly.
• Assemble the frame on a clean, level surface.
• Confirm every interlocking pin is fully engaged.
• Install the fabric carefully to avoid stressing seams.
• Place the spill tray inside before adding equipment.
• Confirm the frame is square and stable.
• Do not exceed the recommended hanging capacity.
• Distribute suspended equipment evenly.
• Keep electrical connections elevated above the floor.
• Use drip loops on power cords.
• Route cables through the designated cable ports.
• Use ventilation ports for ducting and airflow equipment.
• Close unused openings securely.
• Test ventilation before adding plants.
• Check frame connections regularly.
• Keep hot equipment away from the fabric.
• Maintain clearance around fans and filters.
• Follow all electrical and fire-safety requirements.
• Use two people when handling the large outer fabric shell.

Assembly Overview

A typical setup includes:

• Assemble the steel floor frame.
• Install the vertical support poles.
• Connect the upper frame.
• Confirm all interlocking pins are secure.
• Install the height-extension poles when required.
• Carefully position the fabric shell over the frame.
• Align the front door, rear windows, ports, and air inlets.
• Install the spill tray.
• Hang lighting and ventilation equipment.
• Route ducting through the 11-inch ports.
• Route cords through the 3-inch cable ports.
• Test all doors, windows, and closures.
• Inspect the enclosure for light leaks.

Height Extension Setup

Before adding the included extension:

• Remove plants and loose equipment.
• Disconnect electrical devices.
• Remove hanging lights, filters, and fans.
• Open the upper fabric section.
• Install the extension poles securely.
• Confirm all locking pins are engaged.
• Extend the outer fabric carefully.
• Reinstall equipment only after verifying frame stability.

Do not extend the tent while heavy equipment remains suspended from the frame.

Ventilation Planning

For effective airflow:

• Position exhaust equipment near an upper port.
• Use lower inlets for cooler intake air.
• Maintain an unobstructed airflow path.
• Avoid unnecessary sharp bends in ducting.
• Match fan capacity to the enclosure and equipment load.
• Secure ducting with both cinching closures.
• Keep unused ports closed.
• Confirm the walls pull inward slightly under negative pressure.
• Add circulation fans to reduce stagnant air.
• Distribute fans so air reaches all corners of the 5' × 5' space.

Exhaust System Placement

Upper ventilation ports are generally the best location for exhaust airflow because warm air naturally rises. When planning the exhaust system:

• Keep duct runs as short as practical.
• Support heavy filters independently.
• Avoid placing excessive load on the fabric.
• Use proper hanging straps.
• Keep fan controls accessible.
• Confirm ducting does not block the rear windows.
• Check airflow after all equipment is installed.

Intake Air Planning

The four lower air inlets can support passive intake. For improved intake performance:

• Keep the inlets unobstructed.
• Open multiple inlets when stronger exhaust fans are used.
• Position containers so incoming air can circulate.
• Clean inlet covers regularly.
• Close unused inlets if too much outside light or air enters.
• Confirm intake air is not excessively hot or cold.

Lighting Setup

When installing lighting:

• Select a fixture suited to a 5' × 5' area.
• Confirm the frame can support the fixture.
• Use approved hanging hardware.
• Maintain safe clearance from the fabric.
• Account for mature plant height.
• Use the extension kit when additional clearance is required.
• Adjust light height as plants grow.
• Keep drivers and electrical connections dry.
• Follow the lighting manufacturer’s instructions.
• Distribute fixture weight evenly across the frame.

Cable Management

For a cleaner and safer setup:

• Route cords through the three 3-inch cable ports.
• Keep power connections away from standing water.
• Elevate power strips.
• Avoid tightly bending cords.
• Do not overload electrical circuits.
• Separate electrical cords from water lines.
• Label cords when multiple devices are installed.
• Use approved surge protection.
• Keep controller cables organized and accessible.
• Avoid routing cords across door openings.

Plant Arrangement

The 5' × 5' square layout can support one large central canopy, multiple smaller containers, trellis-supported plants, seedling and propagation trays, mixed container sizes, organized plant rows, and central aisle arrangements. Leave enough room for air circulation, watering access, inspection, equipment clearance, spill cleanup, safe cord routing, and access through the rear windows.

Trellis Installation

When installing trellis netting: attach it only to suitable support points, do not overload the fabric walls, keep the front door functional, maintain access through the rear openings, leave enough room below the canopy for airflow, check tension regularly, and avoid placing excessive side load on the frame.

Cleaning & Maintenance

Routine Interior Cleaning

• Disconnect electrical equipment.
• Remove plants and loose items when practical.
• Sweep or vacuum dry debris.
• Wipe the reflective lining with a soft damp cloth.
• Use mild soap when necessary.
• Avoid abrasive cleaners.
• Dry all surfaces fully.
• Do not reconnect electrical equipment until the tent is dry.

Spill Tray Cleaning

• Remove the tray carefully.
• Empty standing water and debris.
• Wash with mild soap and warm water.
• Rinse thoroughly.
• Allow the tray to dry completely.
• Inspect for punctures or seam damage.
• Reinstall it flat against the tent floor.

Reflective Wall Care

• Use a soft microfiber cloth.
• Avoid stiff brushes and abrasive pads.
• Do not use harsh solvents.
• Remove dust regularly.
• Clean spills promptly.
• Avoid puncturing or deeply creasing the lining.
• Do not drag sharp equipment against the walls.

Zipper Maintenance

• Remove debris from zipper tracks.
• Open and close zippers gently.
• Avoid forcing a jammed slider.
• Keep surrounding fabric away from the zipper.
• Inspect zipper stitching regularly.
• Do not hang equipment from the doors.
• Support large door panels while closing when necessary.

Frame Inspection

• Inspect steel poles for bending.
• Confirm all locking pins remain engaged.
• Check the metal corner connectors.
• Reseat loose frame sections.
• Remove suspended equipment before frame repairs.
• Replace damaged components before continued use.
• Inspect the larger 22 mm poles after moving the tent.

Port Maintenance

• Inspect duct sleeves and cinching cords.
• Remove dust from ventilation openings.
• Check port seams for tearing.
• Keep unused ports closed.
• Prevent heavy ducting from pulling on the fabric.
• Support long or heavy duct runs independently.
• Retighten cinching closures when necessary.

Observation Window Care

• Clean windows with a soft cloth.
• Avoid abrasive products.
• Keep the covers closed when not inspecting plants.
• Inspect closures and stitching regularly.
• Do not place pressure on the clear window material.

Rear Window Maintenance

• Keep zipper tracks clean.
• Avoid forcing the rear windows open when blocked by equipment.
• Inspect surrounding seams regularly.
• Keep ducting and cords away from the zipper path.
• Close the windows fully when not in use.
• Do not use the window flaps to support equipment.

Air Inlet Maintenance

• Keep all four lower inlets free from dust.
• Inspect covers or mesh regularly.
• Remove accumulated debris.
• Close inlets when they are not required.
• Confirm equipment does not block airflow.
• Check that incoming air reaches the growing area.
• Inspect for outside light entering through open inlets.

Storage

• Clean and dry the enclosure before storage.
• Remove all electrical and ventilation equipment.
• Disassemble the frame carefully.
• Avoid sharply folding the fabric across zippers.
• Store poles and connectors together.
• Keep the tent in a dry indoor area.
• Do not place heavy objects on the folded enclosure.
• Protect the reflective lining from punctures and abrasion.
• Store the spill tray flat when practical.

What's Included

• Goliath 5' x 5' Grow Tent
• 1680D Fabric Enclosure
• Diamond Reflective Interior
• 22 mm Steel Frame Poles
• Steel Interlocking Pins
• Metal Corner Connectors
• 12-Inch Height Extension Kit
• Heavy-Duty Spill Tray
• H-Style Front Door
• Two Zippered Rear Windows
• Two Observation Windows
• Six 11-Inch Ventilation Ports
• Three 3-Inch Cable Ports
• Four Lower Air Inlets
• IR-Blocking Top
• Assembly Components
• Manufacturer Documentation