Steel Portal Frames for Wide Column-Free Buildings

Steel portal frames forming the column-free interior of a single-storey industrial building

A steel portal frame is a rigid frame of columns and sloping rafters joined by moment-resisting connections, and that rigidity lets a single frame span a wide, column-free interior. Most single-span frames cover roughly 15 to 50 metres of clear width, and the 25–35 metre band is the most economical to build. Because no internal … Read more

Aircraft Hangar Design From the Aircraft Out

Clear-span steel aircraft hangar interior with a business jet under a column-free roof

A hangar is sized by the aircraft it protects, not by the floor area you happen to own. Sound aircraft hangar design starts with the tail height, wingspan, and length of your current and future fleet. From there it works outward to the door opening, the clear span, the structural frame, and the fire and … Read more

Types of Aircraft Hangars

Clear-span steel aircraft hangar with its full-width door open and a jet inside

Aircraft hangars fall into a short list of recognizable types, and they are easiest to tell apart along three lines: how the building is framed (clear-span versus conventional), what it is used for (storage, maintenance, corporate, or military), and the size of aircraft it has to hold. Most owners meet the same core set first … Read more

I-Beam Building Guide to Red Iron Framing

Red iron i-beam building frame with clear-span steel rafters and columns

An i-beam building is a steel building whose primary frame, the columns and roof rafters that carry the load, is built from I-shaped steel sections, usually hot-rolled or shop-welded steel known in the trade as red iron. That one structural choice is what lets these buildings hold up wide, column-free floors that lighter framing cannot … Read more

Hangar Door Types Comparison for Span and Wind

Open steel aircraft hangar with a large lifted door above a parked aircraft

Five hangar door families cover almost every project, and the right one is set by three things: the clear-span width you need to open, the wind and snow your site sees, and the budget you can defend. Sliding (bottom-rolling) doors are the cheapest and most common way to open a very wide bay; bifold and … Read more

Aircraft Hangar Insulation Options by Climate and Budget

Clear-span steel aircraft hangar interior with insulated metal wall and roof panels

The right aircraft hangar insulation depends on three things you can settle up front: your climate, whether the space will be heated or cooled, and how much of the budget the envelope can take. Five options cover almost every hangar built today: reflective and radiant barriers, fiberglass batt, rigid board, closed-cell spray foam, and insulated … Read more

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