4 I-Beam Construction

Most 20 and 22.5 Ton Dual Tandem Equip-ment Trailers manufactures use channel for siderails. Winston Trailers uses Grade 50 I-Beam siderails like a lowboy. Our competitors Siderails are Grade 36. Our 8” I-Beam Siderails have *47.5% more load carrying capacity than our competitor. Since our sid-erails are stronger, CNC plasma cut Diamond Siderails can provide more tie-town points than our competitors with out any significant loss of strength.


Shown is our 20 Ton Equipment Trailer.

Main beams are CNC plasma pierced with the crossmember interlocked into the main beam. Cross frame reinforce-ment and extra suspension gussets are the backbone for building a tag trailer.

This Combination of design, strength, and ease of use will defiantly make most lowboys jealous.

A992 8 x 4 “ I-Beam Grade 50 Sidrails with Diamond & D-Ring


Winston 20 Ton

Winston 22.5 Ton

Competitor's 20 Ton

Main Beam

14 x 5” Beam at 22 lb. Grade 50

14 x 5” Beam at 26 lb. Grade 50

14x 5” Beam at 22 lb. Grade 50


8 x 4” Beam at 15 lb. Grade 50

8 x 4” Beam at 15 lb. Grade 50

8” Channel at 11.5 lb. Grade 36

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