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Green steel frame portable greenhouse with clear PE covers and roll-up windows, 70.75 by 35.5 by 35.5 inches

tuphen

tuphen Green Steel Trellis 70.75" x 35.5" x 35.5

SKU CH-MT0D-P47XS

A portable steel-frame greenhouse with two 140 GSM PE covers transmitting 85% sunlight, roll-up mesh and plastic windows, and a sloped roof for wind stability

  • Frame materialSteel
  • Product typeTrellises
  • Product colorGreen
  • Double protection with 140 GSM PE cover lets 85% sunlight through while shielding plants from UV
  • Extend the growing season in milder climates with an isolated space that buffers temperature swings
  • Zippered roll-up sidewalls and windows give full control over ventilation and humidity levels
  • Sloped roof prevents sagging; bury frame edges for extra stability against wind and rain
  • Compact 70.75" L x 35.5" W x 35.5" H footprint fits small gardens and patios

Portable Greenhouse for Season Extension

The tuphen Green Steel Trellis creates an isolated growing space measuring 70.75" L x 35.5" W x 35.5" H. A steel frame supports two 140 GSM PE covers that maintain humidity and block UV while transmitting 85% of sunlight. Gardeners can use one cover in warm months and add the second when temperatures drop.

Steel Frame with Dual Covers and Ventilation

The powder-coated steel structure features a sloped roof to prevent water pooling and extended edges designed for burial to anchor against wind. Two roll-up sidewalls with zippered openings provide adjustable airflow, while mesh and plastic windows sized 27.25" L x 46" W and 23.5" L x 19.75" W offer additional ventilation control.

Replaces Cold Frames and Single-Layer Tunnels

This unit upgrades basic cold frames by adding a second insulating layer and structured ventilation for precise climate management. The jump is worthwhile for growers in milder zones who need reliable shoulder-season protection without a permanent glasshouse. It does not suit gardeners requiring heated winter production or walk-in headroom.

How it compares

Measured against everything we stock in Trellises, Pergolas & Garden Arches, at today’s prices. Recalculated every night.

Price $98.99
Cheaper than about 89% of the 170 comparable items (median $379.99).

Specifications

Product
Product typeTrellises
Product colorGreen
Size & build
Frame materialSteel

Questions about this item

How much sunlight does the 140 GSM PE cover transmit?

The cover lets 85% of nourishing sunlight through while protecting plants from UV scorching and maintaining high humidity levels inside the greenhouse.

What ground preparation is needed for the 70.75" L x 35.5" W frame?

Bury the ground frame and extended edges deep in the soil to anchor the 70.75" long by 35.5" wide steel structure against wind and rain.

How do the roll-up sidewalls and zippered windows operate for ventilation?

Zippered roll-up sidewalls provide access, while the 27.25" L x 46" W PE mesh window and 23.5" L x 19.75" W plastic window open to control temperature and humidity.

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