Butler Hardwall Systems



Delta Joist Structural System


Delta joist structural systems facilitate the use of loadbearing walls combined with Butler’s Mr-24 standing seam roofs.

Size Parameters

  • Unlimited Building lengths in 1′ Increments
  • Bay lengths to 60′
  • Building Widths per design requirements
  • Bay modules to 120′
  • Heights per design requirements


Landmark 2000 Structural System


The system employs solid web primary frames, pre-punched truss purlins and rod bracing in the roof and walls to form a very attractive and economical long bay framing system.
The entire system was designed with flexibility in mind. Bay sizes from 15′ to 54′ may be specified in 6″ increments. Eave heights from 10′ to 30′ are available in 1/8″ increments. Single slope, double slope and offset ridge designs are available with a roof slope of ¼:12 to 5/8:12. You may also select tapered columns for maximum economy or straight columns for functionality.

Roof Types

  • MR-24 Standing Seam
  • CMR-24 Standing Seam
  • VSR Architectural Standing Seam