The Venlo glasshouse: the frame that has to last thirty years.

Venlo buyers are usually not first-time builders. They have a glass house already, or they are replacing one, and they know that the frame is the part that cannot be replaced later. The steel is heavier, the tolerances tighter, and the coating specification usually names hot-dip rather than pre-galvanised.

Reference shapes only. Venlo structures are normally engineered and stamped by the house supplier, not by the steel mill.

What is different from a film house

• Columns, not posts: a Venlo has a defined column grid and base plates with anchor bolts.
• Trusses: the roof load goes through a truss into the columns, so the truss is a fabricated member.
• Glass-supporting profiles: aluminium or galvanised steel glazing bars, with a defined glass line.
• Hot-dip coating: welded fabrication is coated after welding, not before.
• Tolerance: gutter level and column plumb are inspected, not assumed.

• 01VN-960 — 9.6 m VenloThe standard glass bay→
• 02VN-1280 — 12.8 m VenloWider glass house→
• 03Hot-dip vs pre-galvanisedWhy glass houses usually specify hot-dip→
• 04Square tubeColumns and chords→