These are the original specs, previous owner could have made changes or modifications: Steel Frame Flat Front Tag 30ft Long Flat Roof 8-1/2ft Wide 2 5/16" Top Wedge Latch Adj Ht Coupler 72in. Beavertail Z Crossmembers 30 Crossmembers 16in On Center 4in x 6in Tube Main Rails 2 Skid Pads Hat Section Roof Bows 30 Roof Bows 16in on Center 30 UPG - 6in. Extra Height 30 UPG - 92 - 3/4in Hat Posts 30 Vertical Posts 16in On Center UPG - 3,000lb Electric Tongue Jack Center Draw Bar 10 Degree Up Angle Triple Axle Wide Track Breakaway Kit 3 Manual adj Electric Drum Brakes (req breakaway kit) 3 - 6 bolt pattern 3 EZ Lube Hubs 1/2in Studs Rubber Ride Suspension 3 - 5,2000lb Axle 6 UPG ST225/75R15E GY Rad 6B Black Viper Alum Wheels 96in Wide Rear Opening Max Size Rear Ramp Door - Standard Duty Edge UPG - Black Rubber Coin Extension Covering 16in wide 3/4" PlexCore Ramp Decking UPG- 72 x 78 Side PT Door - Double 40" W Aluminum Single Side Out Step 30 FT White Vinyl Ceiling Liner 30 FT 3/4in PlexCore Decking 30 FT Insulated Ceiling (Requires Ceiling Liner) 30 FT 5.2mm White Vinyl Sidewall Liner 4 5,000lb square D-Ring with Welded Plate 12v Cargo Light - Interior Use 4 12 Volt LED Dome Light (Requires 12v Wall Switch) License Plate Holder and Internal Light LED Amber Clearance Front 3 Light Center Cluster 9 LED Clear Lens Red Clearance Lights 10 LED Clear Lens Amber Clearance Lights 2 LED Oval Clear Lens Tail Lights LED Oval Clear Lens Back-up Light 2 12v Surface Mount Switch Stainless Steel Cap 30 FT Bonded Exterior Sidewalls - No Riveted Seams 30 FT Polar White 30 FT .040 Aluminum Exterior (Black or White Only) 30 FT DOT Tape Chrome Rear Corners Chrome Rear Header Stainless Steel Front Corners 30 1 Piece Aluminum Roof 24in ATP Stoneguard 2 14inx14in Non-powered roof vent 30 FT Black Coin Rubber floor Covering 30 FT 36in Charcoal Gray Track Pad Wall Guard 34inx34in Below Floor Tire Storage Black Coin Rubber Rear Ramp Door Covering 6 5,000lb Square D-Ring with Welded Plate 96in Wide x 24.5 Tall White Alum OH Cabinet 50 FT Recessed Horizontal E-Track 4 12v LED 18" Flush