The engineered Trio® Frame System is ETI’s cornerstone product of versatile tent frames and covers for just about any type of event or gathering. One frame offered in three stylish designs – Traditional, High-Peak and Tension.

10’ | 15’ | 20’ wide

  • Engineered and wind load tested.*
  • 6005 T-6 anodized marine aluminum, 1 3/4″ OD, 1/8” wall thickness with exclusive alignment line.
  • Color-coded end caps for easy identification of tubing lengths and keeping your tubing clean by keeping dirt out.
  • Patented cast aluminum fittings and detachable cast aluminum base plates.
  • Fail-safe steel snap button assembly.
  • Leg height is adjustable from 6’6”, 7’, 7’6” and 8’.
  • Legs telescope down to 5’ for easy installation of tent cover and other accessories.
  • Cover pitches for the TRIO® are: 10’ wide – 2’6”; 15’ wide – 3’9”; 20’ wide – 5’. Add center mast height for cover pitches of High-Peak style.
  • Add center mast height for Hi-Peak style.
  • Additional cross-brace systems are available for any size Trio frame.
  • Stakes, ropes and ratchets are sold separately.

*Cross-bracing required on frames larger than 20’ x 20’ to meet wind load requirement

ETIDigitalDiagramsFromCatalog Trio 01 1
ETIDigitalDiagramsFromCatalog Trio 02 scaled

Trio® Covers

  • Standard covers are manufactured of an exclusive high quality 1300 denier, 18 oz. lacquer coated black-out vinyl material which makes the cover easier to handle, store, install and clean.
  • UV treated, flame retardent that meets the California Fire Marshal Title 19 and NFPA 701, water repellent, mildew resistant
  • Available in 13oz – 18oz solid colors or stripes.
  • Also available in 18oz. SkyLite™ Clear vinyl with embedded filament lines that help prevent the cover from shrinking or expanding.
  • “West Coast” style covers can be manufactured upon request.
  • Expandable mids for the Traditional style are available in 10’ and 20’ 
  • Seams are 100% electronically welded.
  • Stainless steel buckles prevent unsightly rust stains on your cover.
  • Double reinforced straps and buckles.
  • Vinyl grommets installed by R.F. welding on expandable covers.
  • Cover storage bag included
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All TRIO and CLASSIC PLUS Traditional tent covers are available in either a single piece or expandable design. Expandable covers have the versatility to extend the standard square tent to lengths over 100-ft. The diagram shows how the loops from the extension fit through grommets on the main tent cover and then loop-lace together. A vinyl flap then covers the lacing for a clean, seamless look. An expandable cover can ultimately save you money by purchasing one tent and having the versatility of a multi-sized tent. This feature can help accommodate you and your customers’ needs by providing the perfect size tent for any occasion.

Traditional Cover with Straight Valance

Available upon request.

Traditional Cover with Straight Balance


TRIO Assembly

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General Care & Maintenance

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TRIO Frame Sketches

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Product Catalog

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