40’W x 60’L x 18’H – (Round Style)

Original price was: $29,000.00.Current price is: $27,000.00.


The 40x60x18 domed truss building is another of our heavy duty portable shelters. It is designed for commercial, industrial, and agricultural use. Protect your material from the elements of weather, store commercial equipment, or set up a convenient outdoor workspace for your employees. The truss style frame is the most dependable style of outdoor protection the industry has to offer.

The Big Bear Buildings products offer excellent structural integrity and maintenance-free fabric. Our cover fabric is made of the most dependable products, providing maintenance-free protection without compromising quality. The most popular uses for this structure include livestock and hay storage, sand or salt storage, large commercial vehicle storage, workshop and fabrication setup, and more. It can even be used as an airplane hangar or a riding arena for horses!



  • 18 oz. Vinyl Cover
  • 2- 12’W x 15″H
  • Mechanical Crank-Up Doors
  • 22 Cable Earth Anchor Kit
  • 2-3/8″ Galvanized Steel Truss Frame

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Exclusive Features

  • Heavy Duty Galvanized Finish on All Steel Frame Components for Maximum Strength & Long Life
  • Easy Bolt Together Design – All Pre-drilled & Cut
  • Wind Brace Support on Both Corner
  • Double Cover Tensioning System
  • Complete Anchoring System Included
  • 18 oz. CPAI-84 Fabric Cover and Doors
  • Assembles in 6-8 hours

Pipe Size

Designed For Heavy Snow Load

Click here Fabric Details

Product Packaging Details

permanent anchors

Click here for Steel Tubing Details

Standard Specifications

  • Product Size 40’ Wide x 60’ Long x 18’ High
  • Arches Seven (7) on 68” Spacing 2-3/8” Dia. Frame Members
  • Standard End Door Size 12’ Wide X 15′ High at edge mechancial roll up design
  • Available Colors Outer Colors: White
    All Interiors: White Only
  • Shipping Weight 5000 lbs shipped in three (3) crates boxes shipped via motor freight
  • Stock Number 40x60x18- TR406018DWHD
  • Crate Dimensions (3 Crates Total) 
  • CRT = A = 44″ x 102″ x 30″
  • CRT = B = 44″ x 130″ x 41″
  • CRT = C = 44″ x 102″ x 35″
  • Main Cover
  • Protected Fabric Backed Poly Material 18 0z. Weight. 24 Mil. thick.
    Fire Retardant Standard Main Cover & Doors meet CPAI -84 Section 5

Product Documentation

  • the product spec sheet
  • the assembly manual

Additional information

Dimensions 60 × 40 × 18 in